阅读说明：本技术 多层在线贴合式石塑板 (Multilayer on-line attaching type stone plastic plate ) 是由 陈竹 于 2019-10-30 设计创作，主要内容包括：本发明公开了一种多层在线贴合式石塑板,自顶层至底层依次包括上石塑层、中石塑层、下石塑层,厚度比上石塑层：中石塑层：下石塑层＝1：3～4.5：0.9～1.3,上石塑层中PVC与石粉的比例为1：2.7～1：3.5,中石塑层中PVC与石粉的比例为1：4.5～1：6.4,下石塑层中PVC与石粉的比例为1：2.7～1：3.8,所述上石塑层与中石塑层之间设有玻纤布或无纺布加强层。本发明中,将石塑层分成石粉含量不同的两层,两层之间粘合有玻纤布或无纺布,中石塑层厚度大,石粉含量高,可以降低板材的成本,同时增强板材的稳定性,减少收缩率,下石塑层PVC含量高,弹性强,可以对抗耐磨层和油漆层的收缩力,使板材保持平衡,防止板材上翘。(The invention discloses multilayer online attaching type stone-plastic boards, which sequentially comprise an upper stone-plastic layer, a middle stone-plastic layer and a lower stone-plastic layer from the top layer to the bottom layer, wherein the thickness ratio of the upper stone-plastic layer to the middle stone-plastic layer to the lower stone-plastic layer is 1: 3-4.5: 0.9-1.3, the ratio of PVC to stone powder in the upper stone-plastic layer is 1: 2.7-1: 3.5, the ratio of PVC to stone powder in the middle stone-plastic layer is 1: 4.5-1: 6.4, the ratio of PVC to stone powder in the lower stone-plastic layer is 1: 2.7-1: 3.8, a fiberglass cloth or a reinforcing layer is arranged between the upper stone-plastic layer and the middle stone-plastic layer, the stone-plastic layers are divided into two layers with different stone powder contents, a fiberglass cloth or a non-woven cloth is bonded between the two layers, the thickness of the middle stone-plastic layer is large, the stone-plastic layer is high in stone powder content, the cost of the sheet can be reduced, the stability of the sheet is enhanced, the shrinkage rate is reduced, the lower plastic layer is high in elasticity, the non-woven cloth can.)

The multi-layer online attaching type stone-plastic plate is characterized by comprising an upper stone-plastic layer, a middle stone-plastic layer and a lower stone-plastic layer in sequence from a top layer to a bottom layer, wherein the upper stone-plastic layer, the middle stone-plastic layer and the lower stone-plastic layer are extruded respectively, the thickness of the upper stone-plastic layer is larger than that of the upper stone-plastic layer, the thickness of the middle stone-plastic layer is larger than that of the lower stone-plastic layer, the ratio of PVC to stone powder in the upper stone-plastic layer is 0.5-1.5: 3-4.5: 0.9-1.5, the ratio of PVC to stone powder in the middle stone-plastic layer is 1: 3-1: 6.4, the ratio of PVC to stone powder in the lower stone-plastic layer is 1: 2.7-1: 3.8, the ratio of stone powder in the middle stone-plastic layer is higher than that of the stone powder in the upper stone-plastic layer and the lower stone-plastic layer, a glass fiber cloth or a glass fiber reinforced fabric reinforced layer is arranged between the upper stone-plastic layer and the middle stone-plastic layer, and the lower stone-plastic layer, and a glass fiber cloth or a glass fiber reinforced layer.

2. The multilayer in-line laminated stone-plastic panel of claim 1, wherein: the upper stone-plastic layer is composed of the following raw materials in parts by weight:

3. the multilayer in-line laminated stone-plastic panel of claim 2, wherein: DOTP is added into the upper stone-plastic layer, the addition amount of the DOTP is 4-10 parts, and when the DOTP is added, the weight part of the toughening agent is changed into 0-10 parts.

4. The multilayer in-line laminated stone-plastic panel of claim 2, wherein: the upper stone-plastic layer also comprises 100-150 parts of production return materials, and when the production return materials are added, the addition amount of each raw material is adjusted, so that the mixture ratio of the raw materials is still within the mixture ratio range of claim 3 after the amount of each raw material in the production return materials is counted.

5. The multilayer in-line laminated stone-plastic panel of claim 2, wherein: the middle stone-plastic layer is composed of the following raw materials in parts by weight:

6. the multilayer in-line laminated stone-plastic panel of claim 5, wherein: DOTP is further added into the middle stone-plastic layer, the addition amount of the DOTP is 4-10 parts, and when the DOTP is added, the weight part of the toughening agent is changed into 0-10 parts.

7. The multilayer in-line laminated stone-plastic panel of claim 5, wherein: the middle stone-plastic layer also comprises 100-150 parts of production return materials, and when the production return materials are added, the adding amount of each raw material is adjusted, so that the mixture ratio of the raw materials is still within the mixture ratio range of claim 6 after the amount of each raw material in the production return materials is counted.

8. The multilayer in-line laminated stone-plastic panel of claim 5, wherein: the lower stone-plastic layer is composed of the following raw materials in parts by weight:

9. the multilayer in-line laminated stone-plastic panel of claim 8, wherein: the lower stone-plastic layer also comprises 100-150 parts of production return materials, and when the production return materials are added, the addition amount of each raw material is adjusted, so that the mixture ratio of the raw materials is still within the mixture ratio range of claim 8 after the amount of each raw material in the production return materials is counted.

10. The multilayer on-line bonded stone-plastic panel of any of claims 1-9, further comprising a decorative layer, an abrasion-resistant layer, and a buffer layer, wherein the decorative layer and the abrasion-resistant layer are sequentially disposed on the top surface of the upper stone-plastic layer, the buffer layer is bonded to the bottom surface of the lower stone-plastic layer, and a fiberglass cloth or non-woven fabric reinforced layer is disposed between the middle stone-plastic layer and the lower stone-plastic layer.

11. The multi-layer in-line conformable stone-plastic panel of claim 10, wherein: the wear-resistant layer is melamine formaldehyde resin with aluminum oxide, or polyurethane, or PVC; the buffer layer is XPE, IXPE or foaming PVC, and its thickness is the same basically with lower stone-plastic layer, and wherein foaming degree of foaming PVC is at 8 ~ 11.

12. The multi-layer in-line conformable stone-plastic panel of claim 10, wherein: still include the paint layer, the paint layer sets up on the wearing layer.

13. The multi-layer in-line conformable stone-plastic panel of claim 10, wherein: the mesh size of the glass fiber cloth or non-woven fabric reinforcing layer is 2-10 mm.

14. The multilayer on-line bonded stone-plastic panel of any of claims 1-9, further comprising a decorative layer, an abrasion-resistant layer, and a buffer layer, wherein the decorative layer and the abrasion-resistant layer are sequentially disposed on the top surface of the upper stone-plastic layer, the buffer layer is bonded to the bottom surface of the lower stone-plastic layer, another fiberglass cloth or non-woven fabric reinforced layer is disposed between the middle stone-plastic layer and the lower stone-plastic layer, and a fiberglass cloth or non-woven fabric reinforced layer is also disposed between the decorative layer and the upper stone-plastic layer.

15. The multi-layer in-line conformable stone-plastic panel of claim 14, wherein: the wear-resistant layer is melamine formaldehyde resin with aluminum oxide, or polyurethane, or PVC; the buffer layer is XPE, IXPE or foaming PVC, and its thickness is the same basically with lower stone-plastic layer, and wherein foaming degree of foaming PVC is at 8 ~ 11.

16. The multi-layer in-line conformable stone-plastic panel of claim 14, wherein: still include the paint layer, the paint layer sets up on the wearing layer.

17. The multi-layer in-line conformable stone-plastic panel of claim 14, wherein: the mesh size of the glass fiber cloth or non-woven fabric reinforcing layer is 2-10 mm.

18. The multilayer on-line bonded stone-plastic panel of any of claims 1-9, further comprising a decorative layer, an abrasion resistant layer, and a buffer layer, wherein the decorative layer and the abrasion resistant layer are sequentially disposed on the top surface of the upper stone-plastic layer, the buffer layer is bonded to the bottom surface of the lower stone-plastic layer, another fiberglass cloth or non-woven fabric reinforced layer is disposed between the lower stone-plastic layer and the buffer layer, and a fiberglass cloth or non-woven fabric reinforced layer is also disposed between the decorative layer and the upper stone-plastic layer.

19. The multi-layer in-line conformable stone-plastic panel of claim 18, wherein: the wear-resistant layer is melamine formaldehyde resin with aluminum oxide, or polyurethane, or PVC; the buffer layer is XPE, IXPE or foaming PVC, and its thickness is the same basically with lower stone-plastic layer, and wherein foaming degree of foaming PVC is at 8 ~ 11.

20. The multi-layer in-line conformable stone-plastic panel of claim 18, wherein: still include the paint layer, the paint layer sets up on the wearing layer.

21. The multi-layer in-line conformable stone-plastic panel of claim 18, wherein: the mesh size of the glass fiber cloth or non-woven fabric reinforcing layer is 2-10 mm.

The multi-layer online attaching type stone-plastic plate is characterized by comprising an upper stone-plastic layer, a glass fiber cloth or non-woven fabric reinforcing layer and a lower stone-plastic layer from the top layer to the bottom layer in sequence, wherein the upper stone-plastic layer, the middle stone-plastic layer and the lower stone-plastic layer are extruded respectively, the thickness of the upper stone-plastic layer is 0.5-1.5: 0.5-1.5, the ratio of PVC to stone powder in the upper stone-plastic layer is 1: 2.7-1: 3.5, and the ratio of PVC to stone powder in the lower stone-plastic layer is 1: 2.7-1: 3.8.

23. The multi-layer in-line conformable stone-plastic panel of claim 22, wherein: the upper stone-plastic layer is composed of the following raw materials in parts by weight:

24. the multi-layer in-line conformable stone-plastic panel of claim 23, wherein: DOTP is added into the upper stone-plastic layer, the addition amount of the DOTP is 4-10 parts, and when the DOTP is added, the weight part of the toughening agent is changed into 0-10 parts.

25. The multi-layer in-line conformable stone-plastic panel of claim 23, wherein: the upper stone-plastic layer also comprises 100-150 parts of production return materials, and when the production return materials are added, the addition amount of each raw material is adjusted, so that the mixture ratio of the raw materials is still within the mixture ratio range of claim 24 after the amount of each raw material in the production return materials is counted.

26. The multi-layer in-line conformable stone-plastic panel of claim 23, wherein: the lower stone-plastic layer is composed of the following raw materials in parts by weight:

27. the multi-layer in-line conformable stone-plastic panel of claim 23, wherein: the lower stone-plastic layer also comprises 100-150 parts of production return materials, and when the production return materials are added, the addition amount of each raw material is adjusted, so that the mixture ratio of the raw materials is still within the mixture ratio range of claim 26 after the amount of each raw material in the production return materials is counted.

28. The multilayer on-line bonded stone-plastic panel of any of claims 22-27, further comprising a decorative layer, an abrasion resistant layer, and a buffer layer, wherein the decorative layer and the abrasion resistant layer are sequentially disposed on the top surface of the upper stone-plastic layer, and the buffer layer is bonded to the bottom surface of the lower stone-plastic layer.

29. The multi-layer in-line conformable stone-plastic panel of claim 28, wherein: the wear-resistant layer is melamine formaldehyde resin with aluminum oxide, or polyurethane, or PVC; the buffer layer is XPE, IXPE or foaming PVC, and its thickness is the same basically with lower stone-plastic layer, and wherein foaming degree of foaming PVC is at 8 ~ 11.

30. The multi-layer in-line conformable stone-plastic panel of claim 28, wherein: still include the paint layer, the paint layer sets up on the wearing layer.

31. The multi-layer in-line conformable stone-plastic panel of claim 28, wherein: the mesh size of the glass fiber cloth or non-woven fabric reinforcing layer is 2-10 mm.

32. The multi-layer in-line conformable stone-plastic panel of claim 28, wherein: a glass fiber cloth or non-woven fabric reinforcing layer is also arranged between the decorative layer and the upper stone-plastic layer.

Technical Field

The invention relates to kinds of multilayer on-line laminating type stone-plastic plates.

Background

The stone-plastic plate as a novel plate has the advantages of environment-friendly raw materials, zero formaldehyde emission, light and thin material, super wear resistance, high elasticity and super impact resistance, excellent anti-skid, flame retardant, waterproof and noise-proof performances and convenient construction and installation, so the stone-plastic plate can be used as a floor, a wallboard, a furniture panel, a wall line and the like, and the application range is more and more .

The conventional stone-plastic plate is composed of a buffer layer 100, a stone-plastic layer 200, a decorative layer 300, an abrasion-resistant layer 400 and a paint layer 500 from bottom to top, wherein the abrasion-resistant layer is usually melamine formaldehyde resin or polyurethane with alumina, the paint layer is formed by roller coating paint on the surface of the stone-plastic plate after the main body of the stone-plastic plate is formed, the paint material shrinks during drying, the abrasion-resistant layer on the lower layer also shrinks, the two ends of the stone-plastic plate upwarp, as shown in fig. 2, so that the quality of the plate is affected, and cork, foam material, wood or bamboo plates are pasted on the back of the plate.

Chinese patent document CN107031136A has disclosed resin composite boards and a production method thereof, wherein a layered resin composite board is extruded in moulds by adopting a co-extrusion method, but the co-extrusion method causes the following problems that 1, the extruded resin seems to be layered, but is extruded from moulds, times of forming, actually resin boards, only the materials of upper, middle and lower layers of the resin can be different, in this case, the stress ratio in the resin boards is larger, particularly, under the condition that the materials of the upper, middle and lower layers are different, the stress in the resin boards is increased, the mechanical property and the flatness of the resin boards are influenced, 2, the co-extrusion wastes the productivity of the extruders, if the resin is divided into the upper layer and the lower layer in the CN107031136A method, two extruders are needed for co-extrusion, but the comprehensive productivity of the method is only about 120-125% of extruders.

Disclosure of Invention

The invention aims to provide multilayer online attaching type stone-plastic boards, which can overcome the defect that the stone-plastic boards are easy to warp upwards.

The technical scheme includes that the multilayer online attaching type stone-plastic plate sequentially comprises an upper stone-plastic layer, a middle stone-plastic layer and a lower stone-plastic layer from the top layer to the bottom layer, the upper stone-plastic layer, the middle stone-plastic layer and the lower stone-plastic layer are respectively extruded, the thickness of the upper stone-plastic layer is larger than that of the middle stone-plastic layer, the lower stone-plastic layer is 0.5-1.5: 3-4.5: 0.9-1.5, the ratio of PVC to stone powder in the upper stone-plastic layer is 1: 2.7-1: 3.5, the ratio of PVC to stone powder in the middle stone-plastic layer is 1: 3-1: 6.4, the ratio of PVC to stone powder in the lower stone-plastic layer is 1: 2.7-1: 3.8, the ratio of stone powder in the middle stone-plastic layer is higher than that of stone powder in the upper stone-plastic layer and the ratio of stone powder in the lower stone-plastic layer is at least 0.3 point, for example, when the ratio of PVC to stone powder in the upper stone-plastic layer is 1: 3.5, the middle stone-plastic layer is equal to the upper non-plastic layer or lower plastic layer, and the non-plastic layer is arranged between the glass-plastic layer, and the non-plastic layer is arranged in the reinforcing layer, or the non-plastic.

Preferably, the upper stone plastic layer is composed of the following raw materials in parts by weight:

preferably, DOTP is further added into the upper stone plastic layer, the addition amount of the DOTP is 4-10 parts, and when the DOTP is added, the weight part of the toughening agent is changed into 0-10 parts.

Preferably, the upper stone-plastic layer further comprises 100-150 parts of production return materials, and when the production return materials are added, the adding amount of each raw material is adjusted, so that the proportion of the raw materials is still within the proportion range after the amount of each raw material in the production return materials is counted.

Preferably, the middle stone-plastic layer is composed of the following raw materials in parts by weight:

preferably, DOTP is further added into the middle stone-plastic layer, the addition amount of the DOTP is 4-10 parts, and when the DOTP is added, the weight part of the toughening agent is changed into 0-10 parts.

Preferably, the middle stone-plastic layer further comprises 100-150 parts of production return materials, and when the production return materials are added, the adding amount of each raw material is adjusted, so that the proportion of the raw materials is still within the proportion range after the amount of each raw material in the production return materials is counted. The production return material generally refers to waste materials or products which do not reach the standard in the production process, the production return material simultaneously comprises an upper stone-plastic layer, a middle stone-plastic layer and a lower stone-plastic layer, and the proportion of each component in the production return material is between the upper stone-plastic layer and the lower stone-plastic layer and the middle stone-plastic layer, so that the proportion of each component in the production return material needs to be calculated in advance when the production return material is added, and the weight of other added components is adjusted to enable the proportion of each layer to fall into the preset proportion range.

Production returns containing glass fiber webs can have adverse effects on the product, such as longer glass fibers protruding above the surface of the upper stone layer, which can create a risk of foot puncture. Therefore, the production return material is crushed to enable the grain diameter to be smaller than 10 meshes, in the crushing process, most of the glass fibers are blown away from the production return material in an air separation mode, and a small part of the glass fibers crushed to be smaller than 10 meshes are added into the formula, so that the effects of enhancing the performances of the stone plastic plate such as impact strength, flexural strength, tensile strength, elongation at break and the like can be achieved.

Preferably, the lower stone-plastic layer consists of the following raw materials in parts by weight:

preferably, the lower stone-plastic layer further comprises 100-150 parts of production return materials, and when the production return materials are added, the adding amount of each raw material is adjusted, so that the proportion of the raw materials is still within the proportion range after the amount of each raw material in the production return materials is counted.

Preferably, still include decorative layer, wearing layer, buffer layer, go up the stone and mould decorative layer, wearing layer on the layer top surface in proper order, the buffer layer is moulded the laminating of layer bottom surface with lower stone, and fine cloth of glass or non-woven fabrics enhancement layer are located in addition and are moulded between layer and the lower stone also be equipped with fine cloth of glass or non-woven fabrics enhancement layer between decorative layer and the last stone is moulded the layer.

Preferably, the wear-resistant layer is melamine formaldehyde resin with aluminum oxide, or polyurethane, or PVC; the buffer layer is XPE, IXPE or foaming PVC, and its thickness is the same basically with lower stone-plastic layer, and wherein foaming degree of foaming PVC is at 8 ~ 11.

Preferably, the wear-resistant paint further comprises a paint layer, and the paint layer is arranged on the wear-resistant layer.

Preferably, the mesh size of the glass fiber cloth or non-woven fabric reinforcing layer is 3-10 mm.

Preferably, still include decorative layer, wearing layer, buffer layer, go up the stone and mould layer top surface and establish decorative layer, wearing layer in proper order, the laminating of layer bottom surface is moulded with lower stone to the buffer layer, well stone is moulded the layer and is equipped with fine cloth of glass or non-woven fabrics enhancement layer down between the stone and mould the layer, be equipped with fine cloth of glass or non-woven fabrics enhancement layer between decorative layer and the last stone plastic layer.

Preferably, the wear-resistant layer is melamine formaldehyde resin with aluminum oxide, or polyurethane, or PVC; the buffer layer is XPE, IXPE or foaming PVC, and its thickness is the same basically with lower stone-plastic layer, and wherein foaming degree of foaming PVC is at 8 ~ 11.

Preferably, the wear-resistant paint further comprises a paint layer, and the paint layer is arranged on the wear-resistant layer.

Preferably, the mesh size of the glass fiber cloth or non-woven fabric reinforcing layer is 3-10 mm.

Preferably, still include decorative layer, wearing layer, buffer layer, go up the stone and mould layer top surface and go up decorative layer, wearing layer in proper order on, the buffer layer is moulded the laminating of layer bottom surface with lower stone, and fine cloth of glass or non-woven fabrics enhancement layer are located down between stone and the buffer layer in addition, also be equipped with fine cloth of glass or non-woven fabrics enhancement layer between decorative layer and the last stone plastic layer.

Preferably, the wear-resistant layer is melamine formaldehyde resin with aluminum oxide, or polyurethane, or PVC; the buffer layer is XPE, IXPE or foaming PVC, and its thickness is the same basically with lower stone-plastic layer, and wherein foaming degree of foaming PVC is at 8 ~ 11.

Preferably, the wear-resistant paint further comprises a paint layer, and the paint layer is arranged on the wear-resistant layer.

Preferably, the mesh size of the glass fiber cloth or non-woven fabric reinforcing layer is 3-10 mm.

The invention also discloses multilayer online attaching type stone-plastic plates, which sequentially comprise an upper stone-plastic layer, a glass fiber cloth or non-woven fabric reinforced layer and a lower stone-plastic layer from the top layer to the bottom layer, wherein the upper stone-plastic layer, the middle stone-plastic layer and the lower stone-plastic layer are respectively extruded, the thickness of the upper stone-plastic layer is 0.5-1.5: 0.5-1.5, the ratio of PVC to stone powder in the upper stone-plastic layer is 1: 2.7-1: 3.5, and the ratio of PVC to stone powder in the lower stone-plastic layer is 1: 2.7-1: 3.8.

Preferably, the upper stone plastic layer is composed of the following raw materials in parts by weight:

preferably, DOTP is further added into the upper stone plastic layer, the addition amount of the DOTP is 4-10 parts, and when the DOTP is added, the weight part of the toughening agent is changed into 0-10 parts.

Preferably, the upper stone-plastic layer further comprises 100-150 parts of production return materials, and when the production return materials are added, the adding amount of each raw material is adjusted, so that the proportion of the raw materials is still within the proportion range after the amount of each raw material in the production return materials is counted.

Preferably, the lower stone-plastic layer consists of the following raw materials in parts by weight:

preferably, the lower stone-plastic layer further comprises 100-150 parts of production return materials, and when the production return materials are added, the addition amount of each raw material is adjusted, so that the proportion of the raw materials is still within the proportion range of claim 26 after the amount of each raw material in the production return materials is counted.

Preferably, still include decorative layer, wearing layer, buffer layer, it moulds the decorative layer, wearing layer to go up to stone in proper order on the layer top surface, the buffer layer is moulded the laminating of layer bottom surface with lower stone.

Preferably, the wear-resistant layer is melamine formaldehyde resin with aluminum oxide, or polyurethane, or PVC; the buffer layer is XPE, IXPE or foaming PVC, and its thickness is the same basically with lower stone-plastic layer, and wherein foaming degree of foaming PVC is at 8 ~ 11.

Preferably, the wear-resistant paint further comprises a paint layer, and the paint layer is arranged on the wear-resistant layer.

Preferably, the mesh size of the glass fiber cloth or non-woven fabric reinforcing layer is 2-10 mm.

Preferably, a glass fiber cloth or non-woven fabric reinforcing layer is also arranged between the decorative layer and the upper stone plastic layer.

The invention also discloses a preparation method of the multilayer online attaching type stone-plastic plate, which comprises the following steps:

(1) uniformly stirring the raw materials of the lower stone-plastic layer, and extruding the mixture into a layered lower stone-plastic layer from an th extruding device;

(2) the raw materials of the middle stone-plastic layer are uniformly stirred and extruded to the lower stone-plastic layer from the second extrusion device;

(3) laying glass fiber cloth or non-woven fabric on the middle stone-plastic layer, heating and rolling to embed the glass fiber cloth or non-woven fabric into the surface of the middle stone-plastic layer, and pressing and attaching the middle stone-plastic layer and the upper stone-plastic layer;

(4) go up the raw materials stirring on stone plastic layer, extrude from the third extrusion device to the well stone plastic layer of having laid glass fine cloth or non-woven fabrics on, the heating roll-in makes between each layer sticiss the laminating, forms the multilayer structure that layer, glass fine cloth or non-woven fabrics, well stone plastic layer, lower stone plastic layer are moulded to stone for the layer is moulded to thickness ratio last stone: middle stone plastic layer: the lower stone-plastic layer is 0.5-1.5: 3-4.5: 0.9-1.5, wherein the ratio of PVC to stone powder in the upper stone-plastic layer is 1: 2.7-1: 3.5, the ratio of PVC to stone powder in the middle stone-plastic layer is 1: 3-1: 6.4, the ratio of PVC to stone powder in the lower stone-plastic layer is 1: 2.7-1: 3.8, the proportion of the stone powder in the middle stone-plastic layer is higher than that of the stone powder in the upper stone-plastic layer and the lower stone-plastic layer.

Preferably, step (1') is further included after step (1): laying glass fiber cloth or non-woven fabric, heating and rolling to finally form the structure of the upper stone plastic layer, the glass fiber cloth or non-woven fabric, the middle stone plastic layer, the glass fiber cloth or non-woven fabric and the lower stone plastic layer.

Preferably, step (1') is further included after step (1): laying glass fiber cloth or non-woven fabric, and heating and rolling; step (4) is followed by step (5) and step (6), wherein

And (5): sequentially laying a decorative layer and a wear-resistant layer on the upper stone-plastic layer, and heating and rolling to enable the decorative layer and the wear-resistant layer to be attached to the upper stone-plastic layer;

adhering buffer layers to the bottom surface of the lower stone-plastic layer in an adhesive or coating foaming manner, wherein XPE and IXPE are adhered to the bottom surface of the lower stone-plastic layer in an adhesive manner after the stone-plastic plate is cooled, and the foamed PVC is prepared by coating layers of foamed PVC raw materials on the bottom surface of the lower stone-plastic layer and then heating and foaming the raw materials, wherein the step can be carried out after the stone-plastic plate is cooled, or can be carried out after back grains are pressed on the bottom surface of the lower stone-plastic layer;

forming a structure of a wear-resistant layer, a decorative layer, an upper stone-plastic layer, glass fiber cloth or non-woven fabric, a middle stone-plastic layer, glass fiber cloth or non-woven fabric, a lower stone-plastic layer and a buffer layer.

Preferably, step (1') is further included after step (1): laying glass fiber cloth or non-woven fabric, and heating and rolling; step (4) is followed by step (5) and step (6), wherein

And (5): laying glass fiber cloth or non-woven fabric, a decorative layer and a wear-resistant layer on the upper stone-plastic layer in sequence, and heating and rolling to enable the decorative layer, the wear-resistant layer and the glass fiber cloth or non-woven fabric to be attached to the upper stone-plastic layer;

adhering buffer layers to the bottom surface of the lower stone-plastic layer in a gluing or coating foaming manner;

forming a structure of a wear-resistant layer, a decorative layer, glass fiber cloth or non-woven fabric, an upper stone plastic layer, glass fiber cloth or non-woven fabric, a middle stone plastic layer, glass fiber cloth or non-woven fabric, a lower stone plastic layer and a buffer layer.

Preferably, step (4) is followed by step (5) and step (6), wherein:

and (5): laying glass fiber cloth or non-woven fabric, a decorative layer and a wear-resistant layer on the upper stone-plastic layer in sequence, heating and rolling to enable the decorative layer, the wear-resistant layer and the glass fiber cloth or non-woven fabric to be attached to the upper stone-plastic layer,

paving glass fiber cloth or non-woven fabric on the bottom surface of the lower stone-plastic layer, adhering the glass fiber cloth or non-woven fabric to the lower stone-plastic layer in a hot pressing mode, and adhering buffer layers on the bottom surface of the lower stone-plastic layer in an adhesion or coating foaming mode, wherein XPE and IXPE adopt an adhesion mode, are adhered to the bottom surface of the lower stone-plastic layer after the stone-plastic plate is cooled, and the foamed PVC is prepared by coating layers of foamed PVC raw materials on the bottom surface of the lower stone-plastic layer and then heating and foaming, and the step can be carried out after the stone-plastic plate is cooled or after back grains are pressed on the bottom surface of the lower stone-plastic layer;

forming a structure of a wear-resistant layer, a decorative layer, glass fiber cloth or non-woven fabric, an upper stone plastic layer, glass fiber cloth or non-woven fabric, a middle stone plastic layer, a lower stone plastic layer, glass fiber cloth or non-woven fabric and a buffer layer.

Preferably, step (5') is further included after step (5): the surface pattern of the stone-plastic plate is pressed on the surface of the wear-resistant layer by adopting a surface pattern roller, and the back pattern roller is used for pressing the back pattern of the stone-plastic plate on the bottom surface of the lower stone-plastic layer.

Preferably, the method further comprises the step (7): and (4) conveying the prepared stone-plastic plate into a cooling device for cooling.

The invention also discloses another preparation method of multilayer online attaching type stone-plastic plates, which comprises the following steps:

(1) uniformly stirring the raw materials of the middle stone-plastic layer, and extruding the mixture into a layered middle stone-plastic layer from a second extruding device;

(2) laying layers of glass fiber cloth or non-woven fabric on the top surface and the bottom surface of the middle stone-plastic layer respectively, and heating and rolling;

(3) uniformly stirring the raw materials of the lower stone-plastic layer, extruding the mixture from an th extruding device to the position below the middle stone-plastic layer paved with the glass fiber cloth or the non-woven fabric, and heating and rolling the mixture;

(4) go up the raw materials stirring on stone and mould the layer, extrude the well stone of having laid glass fiber cloth or non-woven fabrics from the third extrusion device and mould the layer top, the heating roll-in forms the multilayer structure that layer, glass fiber cloth or non-woven fabrics, well stone were moulded layer, glass fiber cloth or non-woven fabrics, lower stone and are moulded the layer for the layer is moulded to thickness ratio last stone: middle stone plastic layer: the lower stone-plastic layer is 0.5-1.5: 3-4.5: 0.9-1.5, wherein the ratio of PVC to stone powder in the upper stone-plastic layer is 1: 2.7-1: 3.5, the ratio of PVC to stone powder in the middle stone-plastic layer is 1: 3-1: 6.4, the ratio of PVC to stone powder in the lower stone-plastic layer is 1: 2.7-1: 3.8, the proportion of the stone powder in the middle stone-plastic layer is higher than that of the stone powder in the upper stone-plastic layer and the lower stone-plastic layer;

the prepared stone-plastic plate is sent into a cooling device for cooling or natural cooling, in the method, the lower stone-plastic layer can be extruded first and then the upper stone-plastic layer can be extruded, the upper stone-plastic layer can be extruded first and then the lower stone-plastic layer can be extruded, and the obtained effect is .

Preferably, the method further comprises the step (5) and the step (6), wherein

And (5): sequentially laying a decorative layer and a wear-resistant layer on the upper stone-plastic layer, and heating and rolling to enable the decorative layer and the wear-resistant layer to be attached to the upper stone-plastic layer;

adhering buffer layers to the bottom surface of the lower stone-plastic layer in an adhesive or coating foaming manner, wherein XPE and IXPE are adhered to the bottom surface of the lower stone-plastic layer in an adhesive manner after the stone-plastic plate is cooled, and the foamed PVC is prepared by coating layers of foamed PVC raw materials on the bottom surface of the lower stone-plastic layer and then heating and foaming the raw materials, wherein the step can be carried out after the stone-plastic plate is cooled, or can be carried out after back grains are pressed on the bottom surface of the lower stone-plastic layer;

forming a structure of a wear-resistant layer, a decorative layer, an upper stone-plastic layer, glass fiber cloth or non-woven fabric, a middle stone-plastic layer, glass fiber cloth or non-woven fabric, a lower stone-plastic layer and a buffer layer.

Preferably, step (5') is further included after step (5): the surface pattern of the stone-plastic plate is pressed on the surface of the wear-resistant layer by adopting a surface pattern roller, and the back pattern roller is used for pressing the back pattern of the stone-plastic plate on the bottom surface of the lower stone-plastic layer.

The invention also discloses a preparation method of another multilayer laminated stone-plastic plate, which comprises the following steps:

(1) after the raw materials of the middle stone-plastic layer are uniformly stirred, extruding the raw materials into a layered middle stone-plastic layer from a second extruding device;

(2) laying layers of glass fiber cloth or non-woven fabric on the top surface and the bottom surface of the middle stone-plastic layer, and heating and rolling;

(3) the prefabricated upper stone-plastic layer and the prefabricated lower stone-plastic layer are respectively paved above and below the middle stone-plastic layer, and the upper stone-plastic layer, the lower stone-plastic layer and the middle stone-plastic layer are bonded at by heating and rolling to form a multilayer structure of the upper stone-plastic layer, the glass fiber cloth or the non-woven fabric, the middle stone-plastic layer, the glass fiber cloth or the non-woven fabric and the lower stone-plastic layer, so that the thickness ratio of the PVC to the stone powder in the upper stone-plastic layer to the middle stone-plastic layer and the lower stone-plastic layer is 0.5-1.5: 3-4.5: 0.9-1.5, the ratio of the PVC to the stone powder in the upper stone-plastic layer is 1: 2.7-1: 3.5, the ratio of the PVC to the stone powder in the middle stone-plastic layer is 1: 3-1: 6.4, the ratio of the PVC to the stone powder in the lower stone-plastic layer is 1: 2.7-1: 3.8, and the ratio of the stone powder in the middle stone-plastic layer is higher than that of.

And (3) conveying the prepared stone-plastic plate into a cooling device for cooling or naturally cooling.

Preferably, the method further comprises a step (4) and a step (5), wherein

And (4): sequentially laying a decorative layer and a wear-resistant layer on the upper stone-plastic layer, and heating and rolling to enable the decorative layer and the wear-resistant layer to be attached to the upper stone-plastic layer;

adhering buffer layers to the bottom surface of the lower stone-plastic layer in an adhesive or coating foaming manner, wherein XPE and IXPE are adhered to the bottom surface of the lower stone-plastic layer in an adhesive manner after the stone-plastic plate is cooled, and the foamed PVC is prepared by coating layers of foamed PVC raw materials on the bottom surface of the lower stone-plastic layer and then heating and foaming the raw materials, wherein the step can be carried out after the stone-plastic plate is cooled, or can be carried out after back grains are pressed on the bottom surface of the lower stone-plastic layer;

forming a structure of a wear-resistant layer, a decorative layer, an upper stone-plastic layer, glass fiber cloth or non-woven fabric, a middle stone-plastic layer, glass fiber cloth or non-woven fabric, a lower stone-plastic layer and a buffer layer.

Preferably, step (4') is further included after step (4): the surface pattern of the stone-plastic plate is pressed on the surface of the wear-resistant layer by adopting a surface pattern roller, and the back pattern roller is used for pressing the back pattern of the stone-plastic plate on the bottom surface of the lower stone-plastic layer.

The invention also discloses a preparation method of the multilayer online attaching type stone-plastic plate, which comprises the following steps:

(1) uniformly stirring the raw materials of the lower stone-plastic layer, and extruding the mixture into a layered lower stone-plastic layer from an th extruding device;

(2) laying glass fiber cloth or non-woven fabric on the lower stone-plastic layer, and heating and rolling to embed the glass fiber cloth or non-woven fabric into the surface of the lower stone-plastic layer;

(3) go up the raw materials stirring on stone plastic layer, extrude from the third extrusion device and to the lower stone plastic layer of having laid glass fiber cloth or non-woven fabrics on, the heating roll-in makes between each layer sticiss the laminating, forms the multilayer structure that layer, glass fiber cloth or non-woven fabrics, lower stone plastic layer are moulded to last stone for the layer is moulded to thickness ratio last stone: middle stone plastic layer: the lower stone-plastic layer is 0.5-1.5: 0.5-1.5, wherein the ratio of PVC to stone powder in the upper stone-plastic layer is 1: 2.7-1: 3.5, the ratio of PVC to stone powder in the lower stone-plastic layer is 1: 2.7-1: 3.8.

preferably, step (3) is followed by step (4) and step (5), wherein

And (4): sequentially laying a decorative layer and a wear-resistant layer on the upper stone-plastic layer, and heating and rolling to enable the decorative layer and the wear-resistant layer to be attached to the upper stone-plastic layer;

adhering buffer layers to the bottom surface of the lower stone-plastic layer in an adhesive or coating foaming manner, wherein XPE and IXPE are adhered to the bottom surface of the lower stone-plastic layer in an adhesive manner after the stone-plastic plate is cooled, and the foamed PVC is prepared by coating layers of foamed PVC raw materials on the bottom surface of the lower stone-plastic layer and then heating and foaming the raw materials, wherein the step can be carried out after the stone-plastic plate is cooled, or can be carried out after back grains are pressed on the bottom surface of the lower stone-plastic layer;

forming a structure of a wear-resistant layer, a decorative layer, an upper stone-plastic layer, glass fiber cloth or non-woven fabric, a lower stone-plastic layer and a buffer layer.

Preferably, step (4') is further included after step (4): the surface pattern of the stone-plastic plate is pressed on the surface of the wear-resistant layer by adopting a surface pattern roller, and the back pattern roller is used for pressing the back pattern of the stone-plastic plate on the bottom surface of the lower stone-plastic layer.

Preferably, the method further comprises the step (6): and (4) conveying the prepared stone-plastic plate into a cooling device for cooling.

The invention also discloses a production system of multi-layer online laminating type stone-plastic plates, which is used for producing the multi-layer online laminating type stone-plastic plates and is characterized by comprising a extrusion device, a second extrusion device, a third extrusion device, a reel, a second reel, a pair of rollers, a second pair of rollers, a third pair of rollers, a fourth pair of rollers, a conveyor belt and a cooling device;

extruding the lower stone plastic layer to a conveyor belt by the th extruding device, laying the th glass fiber cloth or non-woven fabric on the lower stone plastic layer from a th reel, and rolling by a th roller to attach the stone plastic layer;

the second extrusion device extrudes the middle stone-plastic layer to the lower stone-plastic layer, the second glass fiber cloth or non-woven fabric is paved on the middle stone-plastic layer from a second unwinding roll, and the second pair of roll rollers are used for bonding and pressing the lower stone-plastic layer and the middle stone-plastic layer;

the third extrusion device extrudes the upper stone-plastic layer to the middle stone-plastic layer, and the upper stone-plastic layer is bonded and compacted with the material through the rolling of the third pair of rollers and the fourth pair of rollers;

then sending the mixture into a cooling device for cooling and forming.

Preferably, the paper-making and paper-rolling composite material further comprises a stained paper placing drum, a wear-resistant paper placing drum, a stained paper pressing roller, a large roller, a small roller and a fifth pair of rollers, wherein the material extruded by the fourth pair of rollers is conveyed to be rolled by the fifth pair of rollers through the large roller and the small roller and then is sent into a cooling device for cooling and forming, the stained paper placing drum and the wear-resistant paper placing drum lay stained paper and wear-resistant paper on an upper stone-plastic layer at the position where the material is located on the large roller to form a decorative layer and a wear-resistant layer, and are rolled and attached through the stained paper pressing roller, and the stained paper pressing.

Preferably, the reel is put to the third, reel, wear-resisting paper are put to the reel, stained paper compression roller including still, and third glass fine cloth or non-woven fabrics are spread to last stone from the third and are moulded the layer, roll-in through third pair roller and fourth pair roller, the reel is put to the stained paper and wear-resisting paper unreels a section of thick bamboo and lays stained paper and wear-resisting paper at the position department that the material is in big roller and form decorative layer and wearing layer on last stone is moulded the layer to the laminating is rolled-in through the stained paper compression roller, the stained paper compression roller is equipped with heating device.

Preferably, the decoration paper roll comprises a third unwinding roll, a stained paper unwinding roll, a wear-resistant paper unwinding roll and a stained paper pressing roll, wherein th glass fiber cloth or non-woven fabric is laid below but not above the lower stone-plastic layer from the th unwinding roll, the th pair of rolls roll to be laminated, the third glass fiber cloth or non-woven fabric is laid on the upper stone-plastic layer from the third unwinding roll and is rolled by the third pair of rolls and the fourth pair of rolls, the stained paper unwinding roll and the wear-resistant paper unwinding roll lay stained paper and wear-resistant paper on the upper stone-plastic layer at the position where materials are located on the large roll to form a decoration layer and a wear-resistant layer, the decoration layer and the wear-resistant paper are rolled and laminated by the stained paper pressing roll, and.

Preferably, the th pair of rollers, the second pair of rollers, the third pair of rollers, the fourth pair of rollers and the fifth pair of rollers are composed of an upper roller and a lower roller which rotate oppositely, and the th pair of rollers, the second pair of rollers, the third pair of rollers, the fourth pair of rollers and the large roller are provided with heating devices.

Preferably, the lower roller of the fifth pair of rollers is a back-grain roller, concave-convex grains are printed on the bottom surface of the lower stone-plastic layer, the upper roller of the fifth pair of rollers is a face-grain roller, and concave-convex grains are printed on the top surface of the wear-resistant layer.

Preferably, the th unreeling drum and/or the second unreeling drum and/or the third unreeling drum and/or the stained paper unreeling drum and/or the wear-resistant paper unreeling drum and/or the balance layer unreeling drum are double drums, so that the replacement is convenient.

The invention also discloses a production system of multilayer laminated stone-plastic boards, which is characterized by comprising a extrusion device, an upper stone-plastic layer unwinding reel, a lower stone-plastic layer unwinding reel, a unwinding reel, a second unwinding reel, a pair of rollers, a second pair of rollers, a third pair of rollers, a conveyor belt and a cooling device;

the th extrusion device extrudes the middle stone plastic layer to a conveyor belt, the th glass fiber cloth or non-woven fabric and the second glass fiber cloth or non-woven fabric are respectively paved below and above the middle stone plastic layer from a th unwinding roll and a second unwinding roll, and the th roll is rolled to be attached;

the prefabricated lower stone-plastic layer coiled material is paved below the middle stone-plastic layer from the lower stone-plastic layer unreeling cylinder, and meanwhile, the prefabricated upper stone-plastic layer coiled material is paved above the middle stone-plastic layer from the upper stone-plastic layer unreeling cylinder, and is sequentially rolled by the second pair of rollers and the third pair of rollers, so that the lower stone-plastic layer, the upper stone-plastic layer and the middle stone-plastic layer are bonded and compacted;

then sending the mixture into a cooling device for cooling and forming;

wherein the th roller pair, the second roller pair and the third roller pair are composed of an upper roller and a lower roller which rotate oppositely, and a heating device is arranged in the rollers.

Preferably, the paper-making machine further comprises a stained paper placing drum, a wear-resistant paper placing drum, a stained paper pressing roller, a wear-resistant paper pressing roller, a large roller, a small roller and a fourth pair of rollers, wherein materials extruded by the third pair of rollers are conveyed to be rolled by the fourth pair of rollers through the large roller and the small roller and then are sent into a cooling device for cooling and forming, the stained paper placing drum lays stained paper on an upper stone-plastic layer at the position of the materials at the large roller to form a decorative layer, the wear-resistant paper placing drum lays wear-resistant paper on the decorative layer at the position of the materials at the large roller to form a wear-resistant layer, and is in rolling fit with the wear-resistant paper pressing roller, and heating devices are arranged in the stained paper pressing roller, the.

Preferably, the lower roller of the fourth pair of rollers is a back-grain roller, concave-convex grains are printed on the bottom surface of the lower stone-plastic layer, the upper roller of the fourth pair of rollers is a face-grain roller, and concave-convex grains are printed on the top surface of the wear-resistant layer.

Preferably, the upper and/or lower stone-plastic laying drum and/or the th and/or second laying drum are double drums, so as to be convenient to replace.

Preferably, the upper stone-plastic layer unwinding roll and/or the lower stone-plastic layer unwinding roll and/or the th unwinding roll and/or the second unwinding roll and/or the stained paper unwinding roll and/or the wear-resistant paper unwinding roll and/or the balance layer unwinding roll are double rolls, so that replacement is facilitated.

The invention also discloses a production system of multilayer online laminating type stone-plastic plates, which is characterized by comprising a extruding device, a second extruding device, a third extruding device, a reel, a second reel, a pair of rollers, a second pair of rollers, a third pair of rollers, a fourth pair of rollers, a conveying belt and a cooling device;

the second extruder extrudes the middle stone-plastic layer to a conveyor belt, the th glass fiber cloth or non-woven fabric and the second glass fiber cloth or non-woven fabric are respectively paved below and above the middle stone-plastic layer from the th unwinding roll and the second unwinding roll, and the th roll is rolled to be attached;

extruding the lower stone-plastic layer to the lower part of the middle stone-plastic layer by the th extrusion device, and bonding and compacting the lower stone-plastic layer and the middle stone-plastic layer by the rolling of a second pair of rollers;

the third extrusion device extrudes the upper stone plastic layer to the upper part of the middle stone plastic layer, and the upper stone plastic layer is pressed by the third pair of rollers and the fourth pair of rollers to be attached;

then sending the mixture into a cooling device for cooling and forming;

wherein the sequence of extruding the lower stone-plastic layer and the upper stone-plastic layer can be exchanged;

the th pair of rollers, the second pair of rollers, the third pair of rollers and the fourth pair of rollers are composed of an upper roller and a lower roller which rotate oppositely, and heating devices are arranged in the rollers.

Preferably, the paper packaging machine further comprises a stained paper placing reel, a wear-resistant paper placing reel, a stained paper pressing roller, a wear-resistant paper pressing roller, a large roller, a small roller and a fifth pair of rollers, wherein materials extruded by the fourth pair of rollers are conveyed to be rolled by the fifth pair of rollers through the large roller and the small roller and then are sent into a cooling device for cooling and forming, the stained paper placing reel lays stained paper on an upper stone-plastic layer at the position where the materials are located on the large roller to form a decorative layer and is rolled and attached by the stained paper pressing roller, the wear-resistant paper placing reel lays wear-resistant paper on the decorative layer at the position where the materials are located on the large roller to form a wear-resistant layer, and is rolled and attached by the wear-resistant paper pressing roller, and heating devices are arranged in the stained.

Preferably, the lower roller of the fifth pair of rollers is a back-grain roller, concave-convex grains are printed on the bottom surface of the lower stone-plastic layer, the upper roller of the fifth pair of rollers is a face-grain roller, and concave-convex grains are printed on the top surface of the wear-resistant layer.

The invention also discloses a production system of the multilayer on-line laminating type stone-plastic plate, which comprises a extrusion device, a second extrusion device, a reel, a pair of rollers, a second pair of rollers, a third pair of rollers, a conveyor belt and a cooling device;

extruding the lower stone plastic layer to a conveyor belt by the th extruding device, laying the th glass fiber cloth or non-woven fabric on the upper part of the lower stone plastic layer from a th reel, and rolling by a th roller to attach the stone plastic layer;

the second extrusion device extrudes the upper stone-plastic layer to the lower stone-plastic layer, and the second pair of rollers and the third pair of rollers sequentially roll the upper stone-plastic layer and the lower stone-plastic layer to be bonded and compressed;

then sending the mixture into a cooling device for cooling and forming;

wherein the th roller pair, the second roller pair and the third roller pair are composed of an upper roller and a lower roller which rotate oppositely, and a heating device is arranged in the rollers.

Preferably, the paper-making machine further comprises a stained paper placing drum, a wear-resistant paper placing drum, a stained paper pressing roller, a big roller, a small roller and a fourth pair of rollers, wherein materials extruded by the third pair of rollers are conveyed to be rolled by the fourth pair of rollers through the big roller and the small roller and then are sent into a cooling device for cooling and forming, the stained paper placing drum and the wear-resistant paper placing drum lay stained paper and wear-resistant paper on an upper stone-plastic layer at the position where the materials are located on the big roller to form a decorative layer and a wear-resistant layer, and are rolled and attached by the stained paper pressing roller, and heating devices are arranged in the stained paper pressing roller and the big roller.

Preferably, the lower roller of the fifth pair of rollers is a back-grain roller, concave-convex grains are printed on the bottom surface of the lower stone-plastic layer, the upper roller of the fifth pair of rollers is a face-grain roller, and concave-convex grains are printed on the top surface of the wear-resistant layer.

The extrusion device generally comprises a high-speed mixer, a low-speed mixer, a silo and an extruder, wherein the extruder is a parallel double-screw extruder, a conical double-screw extruder or a single-screw extruder. The materials are stirred and mixed at a high speed in a high-speed mixer, the mixing temperature is 130-160 ℃, so that PVC wraps the stone powder particles, then the PVC wraps the stone powder particles, the stone powder particles are cooled to be below 30 ℃ or the PVC wraps the stone powder particles to be room temperature, the PVC wraps the stone powder particles, the.

The invention has the following beneficial effects:

1. the invention is developed on the basis of patent document CN107031136A, the invention divides a stone-plastic layer into three layers with different stone powder contents, and the three layers can be separated by glass fiber cloth or non-woven fabric and play a role in reinforcement, wherein the middle stone-plastic layer has large thickness and high stone powder content, not only can reduce the cost of the plate, but also has low PVC content, is not easily affected by thermal expansion and cold contraction, has low shrinkage rate, the PVC content of the upper stone-plastic layer and the lower stone-plastic layer is high, and has strong elasticity, and the reinforcement layer can be embedded into the stone-plastic layer, so that the stone-plastic layers are combined into whole bodies, the shrinkage force of the wear-resistant layer and the paint layer and the internal stress caused by uneven cold and hot heating can be resisted, the stability of the plate can be enhanced, the shrinkage rate is reduced, the plate is kept balanced and prevented from warping.

2. The temperature of the extruded stone-plastic material is high, so that the stone-plastic layers and the reinforcing layer and the stone-plastic layer can be well combined in , the binding force among the layers is strong, the decorative layer, the wear-resistant layer and the buffer layer are covered on the stone-plastic material, the residual temperature of the stone-plastic material can enable the covering material to be well attached to the stone-plastic material, the reinforcing layer can enable the layers to be better combined to , and the buffer layer can play a role in buffering and silencing.

3. The DOTP is added in the upper stone plastic layer, so that the upper stone plastic layer has better softness and elasticity and has good foot feel when being used as a floor.

4. Generally speaking, PVC in the stone-plastic layer wraps up outside stone powder, namely calcium carbonate particles, and wraps up into circular or oval, and the PVC particle surface that closes on combines at , provides the fashioned adhesive force of stone-plastic board.

5. The invention adopts a method and a production system for extruding stone-plastic materials and paving bodies as auxiliary materials of each layer to form, which can simplify the production flow and reduce the cost by steps, after layers of glass fiber cloth or stone-plastic layers are paved, the layers are combined with in a heating and rolling mode in time when the stone-plastic materials are not hardened, so that the materials of each layer are combined more tightly, and the small roller and the fifth pair of rollers are cold rollers.

6. The general operation is to extrude the lower stone-plastic layer, then extrude the middle stone-plastic layer, and finally extrude the upper stone-plastic layer, but this is not only in order, but it is also possible to extrude the middle stone-plastic layer and stick the upper and lower glass fiber cloth or non-woven cloth, then extrude the upper stone-plastic layer on the middle stone-plastic layer, and extrude the lower stone-plastic layer on the lower side and roll and stick.

7. The PVC content is higher in last stone-plastic layer and the lower stone-plastic layer, the material is soft for this production system, the factory building space that three extruders of configuration need simultaneously is fairly big, for practicing thrift the space, also can mould layer and lower stone-plastic layer with last stone and prefabricate, make the coiled material of required thickness, adopt the extruder to extrude after the stone-plastic layer again with last stone-plastic layer and lower stone-plastic layer shop back heating roll-in, the middle stone-plastic layer of just extruding has higher temperature, through the mode of heating roll-in, make go up stone-plastic layer and lower stone-plastic layer and be in the state of softening, can be fine between each layer adhere to and play.

8. The plate with the upper, middle and lower stone-plastic layers can be used for manufacturing a lock catch type plate by slotting, but the cost is higher, and the plate which is thin in thickness, elastic and not easy to deform can be manufactured by only using the upper and lower stone-plastic layers.

9. The cushion layer is adhered after the back grains are pressed on the surface of the lower stone plastic plate, the back grains can play a role of reinforcing ribs on the stone plastic plate and play a role of pulling and connecting all parts of the stone plastic plate, so that the stone plastic plate becomes whole bodies and is not easy to deform, and when the cushion layer is adhered, glue or coated foamed PVC pasty materials can be filled into gaps among the back grains, so that the contact area between the glue or the foamed PVC and the cushion layer is increased, the cushion layer is adhered more firmly, and the silencing effect is better.

Drawings

The invention is further illustrated in the following description with reference to the figures and examples.

Fig. 1 is a schematic structural diagram of a prior art stone-plastic plate.

Fig. 2 is a schematic structural diagram of a deformed stone-plastic plate in the prior art.

Fig. 3 is a schematic structural view of the multilayer in-line bonded stone-plastic panel of embodiment 1.

Fig. 4 is a schematic structural view of the multilayer in-line bonded stone-plastic panel of example 7.

Fig. 5 is a schematic structural view of the multilayer in-line bonded stone-plastic panel of embodiment 8.

Fig. 6 is a schematic structural view of the multilayer in-line bonded stone-plastic panel of example 9.

Fig. 7 is a schematic structural view of the multilayer in-line bonded stone-plastic panel of example 10.

Fig. 8 is a schematic structural view of a production system for a multilayer in-line bonded type stone-plastic panel of example 22.

Fig. 9 is a schematic structural view of a production system of a multilayer in-line bonded type stone-plastic panel of example 23.

FIG. 10 is a schematic structural view of a multilayer in-line bonded stone-plastic panel production system according to example 24.

Fig. 11 is a schematic structural view of a production system for a multilayer laminated stone-plastic panel of example 25.

Fig. 12 is a schematic structural view of a production system for a multilayer in-line bonded stone-plastic panel of example 26.

FIG. 13 is a schematic diagram showing a production system of a multilayer in-line bonded type stone-plastic panel according to example 27.

Detailed Description

Comparative example 1

This board is moulded to stone is individual layer stone and moulds board, mould layer main part and buffer layer including wearing layer, decorative layer, stone, wherein the wearing layer is the PVC membrane, and thickness is 0.3mm, and the decorative layer is the PVC membrane of having printed the pattern in advance, and the buffer layer is the IXPE of 1mm thickness, and the thickness that the layer main part was moulded to stone is 3.7mm, and the ratio is: