TWI629400B - Method of forming layering structure of plastic flooring - Google Patents

Abstract

A molding method for a plastic floor layer structure is to form a substrate by co-extrusion molding, and then a printing layer and a wear layer are sequentially arranged on the substrate to form a plastic floor. The substrate is integrally formed into a first substrate layer, a second substrate layer and a third substrate layer of different hardnesses by co-extrusion, and the substrate layers are vertically overlapped and bonded together during co-extrusion; After the extrusion molding, the printing layer and the wear layer are respectively transported to a roll pressing unit by using a roll feeding device, and the substrate, the printing layer and the wear layer are bonded and fixed by a roll pressing method by using the roll pressing unit. The plastic floor has a layered structure with a variety of different hardnesses, while being more efficient and environmentally friendly.

Description

Plastic floor layer structure forming method

This creation department is part of the creation of a plastic floor, especially for the improvement of the molding method and composition of the plastic floor layer structure.

Pressing, using plastic materials to make flooring to replace natural wood and reduce damage to natural materials is the trend of plastic flooring products development today. According to the prior art, the composition of the existing plastic floor is that the bottom surface of the substrate is coated with a printing film and a wear-resistant film, and the general substrate is made of PVC. If a soft material is added to the bottom layer, most of them are utilized. Industrial glue sticking, not only has low working efficiency, but also has no environmental protection concept. At the same time, the bonding method is used to combine different soft and hard materials, and the bonding stability and quality cannot be effectively controlled, and different soft and hard materials cannot be used. The base plate is subjected to a variety of combinations and changes are necessary.

The main purpose of this creation is to provide a "molding method for a layered structure of a plastic floor", which is a layered structure in which a plastic floor has a stack of soft and hard materials, and the forming method of the layered structure is automated and fast. It is easy and environmentally friendly to improve the stability and use of the plastic floor layer structure.

For the purpose of achieving the above-mentioned creation, the present invention "forming method of layered structure of plastic floor" comprises a substrate, a printing layer and a wear layer, wherein: the substrate is coextruded The method integrally forms a multi-layer structure, and may have a first substrate layer, a second substrate layer and a third substrate layer with different hardnesses. The substrate layers are mainly made of PVC, and may or may not be added with a plasticizer or The auxiliary material such as a foaming agent, for example, the first substrate layer located at the lowermost layer may be a PVC material which does not contain a plasticizer and exhibits soft characteristics, and the second substrate layer in the middle may be a foaming agent added to the PVC material to exhibit elastic properties. The third substrate layer of the uppermost layer may be a PVC material containing no plasticizer, exhibiting a hard property and keeping the floor size stable. Next, the printed layer is formed on the substrate, and the wear resistant layer is formed on the printed layer. The substrate, the printing layer and the wear-resistant layer are formed by co-extrusion, and the printing layer and the wear-resistant layer are separately transported to a roll pressing unit by a roll-feeding device, and the roll pressing unit is used for the substrate The substrate, the printing layer and the wear layer are rolled and bonded together to make the plastic floor have a layered structure with various softness and hardness, and the automated manufacturing is more efficient and environmentally friendly.

With regard to the techniques, means and functions of the present invention, a preferred embodiment is described in detail with reference to the drawings, and it is believed that the above objects, structures and features of the present invention can be obtained from an in-depth and specific understanding. .

(10)‧‧‧Plastic flooring

(11) ‧‧‧Substrate

(111)‧‧‧First substrate layer

(112)‧‧‧Second substrate layer

(113)‧‧‧ Third substrate layer

(114)‧‧‧4th substrate layer

(115)‧‧‧ Third substrate layer

(116) ‧‧‧Substrate

(12) ‧‧‧Printing layer

(13) ‧‧‧ wear layer

(20)‧‧‧Extrusion system

(21, 22, 23) ‧‧‧Extrusion unit

(24)‧‧‧Distributor

(30)‧‧‧Feeding equipment

(31) ‧‧‧ wear layer unwinding mechanism

(32)‧‧‧Printing layer unwinding mechanism

(33)‧‧‧Abrasion layer bonding mechanism

(34) ‧‧‧Printing layer bonding mechanism

(35) ‧ ‧ guidance agencies

(40)‧‧‧ Rolling unit

(41)‧‧‧Rack

(42A)‧‧‧First conveyor roller

(42B)‧‧‧Second conveyor roller

(43)‧‧‧Mirror roll

(44)‧‧‧patterned roller

(45) ‧‧‧First pressure roller

(46)‧‧‧Second pressure roller

(47)‧‧‧First guide roller

(48)‧‧‧Second guide roller

(51)‧‧‧third guide roller

(52) ‧‧‧fourth guide roller

(53)‧‧‧ fifth guide roller

(54)‧‧‧6th guide roller

(55)‧‧‧ Third pressure roller

(56) ‧‧‧4th pressure roller

First Fig.: A plan view of a combination of the winding device of the present invention and a four-roller rolling unit.

Fig. 2 is a plan view showing the combination of the five-roller rolling unit of the present invention.

Third Figure: A schematic representation of the extrusion of the extrusion system of the present invention.

Fourth Figure: is a plan view of a first substrate layered structure of the present invention.

Fig. 5 is a plan view showing a layered structure of a second substrate of the present invention.

Fig. 6 is a plan view showing a layered structure of a third substrate of the present invention.

Figure 7 is a plan view showing a fourth substrate layered structure of the present invention.

Figure 8 is a plan view showing a fifth substrate layered structure of the present invention.

Figure 9 is a plan view showing a sixth substrate layered structure of the present invention.

Figure 10 is a diagram showing an embodiment of the plastic floor of the present invention with a PVC substrate.

Please refer to the first to tenth drawings, the "forming method of the plastic floor layer structure", comprising a plastic floor (10) having a layered structure of different soft and hard materials, using extrusion The system (20), the winding device (30) and the rolling unit (40) are manufactured in an automated manner, wherein the plastic floor (10) comprises a substrate (11), a printing layer (12) and a wear layer. (13); the substrate (11) is integrally formed into a film having a multilayer structure by coextrusion through an extrusion system (20), and may be composed of substrate layers (111, 112, 113) having different hardnesses, and The substrate layers (111, 112, 113) are stacked one on top of the other during coextrusion. As described below, when the layered structure of the substrate (11) is extruded, the soft and hard changeable structure that can be combined includes: as shown in the fourth figure, the substrate (11) can be a two-layer structure, which is located in the lower layer. A substrate layer (111) may add a plasticizer to the PVC material to exhibit a soft property, and the second substrate layer (112) located in the upper layer may be a PVC material free of a plasticizer, exhibiting a hard property.

Alternatively, as shown in FIG. 5, the substrate (11) may have a three-layer structure, and the first substrate layer (111) located at the lowermost layer may be a PVC material that does not contain a plasticizer and exhibits a hard property, and the second substrate is in the middle. The layer (112) may be added with a foaming agent for the PVC material to exhibit elastic properties, and the third substrate layer (113) of the uppermost layer may be a PVC material containing no plasticizer, exhibiting a hard property and keeping the floor size stable.

Alternatively, as shown in FIG. 6, the substrate (11) may have a three-layer structure, and the first substrate layer (111) located at the lowermost layer may be a PVC material containing a plasticizer, exhibiting soft characteristics, and a second substrate layer in the middle. (112) A foaming agent can be added to the PVC material to exhibit elastic properties. The third substrate layer (113) of the uppermost layer may be a PVC material containing no plasticizer, and exhibits a hard characteristic to enhance the feel of the pedal.

Alternatively, as shown in the seventh figure, the substrate (11) may have a three-layer structure, and the first substrate layer (111) located at the lowermost layer may be a PVC material containing a plasticizer, exhibiting soft characteristics, and a second substrate layer in the middle. (112) The PVC material may be added without a foaming agent, without adding a plasticizer, and exhibits a rigid property, and the third substrate layer (113) of the uppermost layer is a PVC material containing a plasticizer, exhibiting soft characteristics.

Alternatively, as shown in the eighth figure, the substrate (11) may have a three-layer structure, and the first substrate layer (111) located at the lowermost layer may be a plastic material added with a plasticizer, exhibiting soft characteristics, and a second substrate layer in the middle. (112) The PVC material can be added by gas to produce a foam, does not contain any foaming agent, and exhibits elastic properties, and the uppermost third substrate layer (113) can be a plastic material containing a plasticizer, exhibiting soft characteristics. To make the overall floor size stable and elastic.

Alternatively, as shown in the ninth figure, the substrate (11) may have a five-layer structure, and the first substrate layer (111) located at the lowermost layer may be added with a plasticizer for the PVC material, exhibiting soft characteristics, and is located in the lower second layer. The second substrate layer (112) may be provided with a foaming agent for the PVC material and exhibits elastic properties, and the third substrate layer (113) located under the third layer is a PVC material without adding a foaming agent and a plasticizer. Hard characteristics; the fourth substrate layer (114) of the fourth layer from the bottom can be added with a foaming agent for the PVC material, exhibiting elastic properties, and the fifth substrate layer (115) of the uppermost layer is not foamed. The PVC material of the agent and the plasticizer exhibits a hard characteristic, so that the whole of the plastic floor (10) is more rigid and soft.

According to the above embodiment, as shown in the tenth figure, the bottom portion (11) of the substrate can be provided with a substrate (116), which can be a PVC film, and can be designed according to customer requirements to achieve slippage and reduce Noise effect.

The printed layer (12) is a film on which a predetermined pattern or a grain is printed on the surface, and is disposed on the upper edge surface of the substrate (11).

The wear layer (13) is a transparent film which is disposed on the printing layer (12) and has abrasion and scratch resistance characteristics.

The extrusion system (20) is a general plastic extrusion machine having a plurality of corresponding number of extrusion units (21, 22, 23) according to the layered structure required for the substrate (11), for different formulation materials. The substrate layer is subjected to an extrusion operation. The extrusion ends of the extrusion units (21, 22, 23) are connected to a dispenser (24) having a squeezing head (241). In principle, an extrusion unit can produce a substrate layer of a formulation, and two extrusion units are distributed by a distributor (24), so that the substrate (11) can be arranged in three layer structures, and the three extrusion units utilize distribution. The device (24) can be arranged in five layers, and the substrate layer extruded by two or more extrusion units is collected by the distributor (24) and then squeezed. The head (241) is extruded outward.

The winding device (30) is disposed above and outside the rolling unit (40), and includes a wear layer unwinding mechanism (31) for winding the wear layer (13), and a rollable printing a printing layer unwinding mechanism (32) of the layer (12), a wear layer bonding mechanism (33) for pressing against the wear layer (13), and a printing layer for pressing against the printing layer (12) The mechanism (34) and the guiding mechanism (35) for guiding the printing layer (12). The wear layer (13) is fed to the roll pressing unit (40) by the wear layer unwinding mechanism (32) and the wear layer bonding mechanism (34), and the printed layer (12) is utilized. The printing layer unwinding mechanism (32) is fed to the rolling unit (40) in cooperation with the printing layer bonding mechanism (34) and the guiding mechanism (35).

The rolling unit (40) may be a four-roll calender, which comprises a first frame and a second conveying roller (42A, 42B) and a mirror roller (43). a pattern roller (44) for forming a base after being conveyed through the extrusion system (20) The plate (11), and the printed layer (12) and the wear resistant layer (13) conveyed by the winding device (30) are integrally bonded by roll bonding. In roll forming, the substrate (11) is introduced into the roll pressing unit (40) between the two conveying rollers (42A, 42B), and then passed up the mirror roll (43) along the second conveying roller (42B). And the pattern roll (44); at the same time, the printing layer (12) and the wear layer (13) utilize the roll before the substrate (11) passes between the mirror roll (43) and the pattern roll (44) The transporting device (30) is disposed such that the printed layer (12) is stacked on the substrate (11), and the wear layer (13) is stacked on the printed layer (12), and When the upper and lower stacked substrates (11), the printed layer (12) and the wear layer (13) pass between the mirror roll (43) and the pattern roll (44), the roll unit (40) can be rolled and bonded. As one.

In order to stabilize the winding of the printed layer (12) and the wear layer (13), the printing layer (12) is transported from the starting position to the mirror roll (43) and the pattern roll (44). A first pressure roller (45) and a second pressure roller (46) are disposed between the first wear roller (45) and the wear layer (13) from the initial position to the mirror roller (43) and the pattern roller (44). A first guide roller (47) and a second guide roller (48) are disposed therebetween.

In addition, as shown in the second figure, the rolling unit (40) may be a five-roll calender, which comprises a frame (41) and a first one disposed on the frame (41) in a horizontal direction. a second conveying roller (42A, 42B), a mirror roller (43), a two-pattern roller (44), and a plurality of guide rollers (51, 52, 53, 54) and pressure rollers (55, 56), the substrate ( 11) after being extruded through the extrusion system (20), transferred to the two conveying rollers (42A, 42B), and then introduced into the rolling stroke of the mirror roller (43) via the third guiding roller (51), and The printing layer (12) is introduced into the rolling stroke of the mirror roll (43) via a fourth guide roller (52) and a third pressing roller (55), and the wear layer (13) is passed through a fifth guide roller (53). And the fourth pressing roller (56) is introduced into the rolling stroke of the mirror roller (43), so that the substrate (11), the printing layer (12) and the wear layer (43) are rolled on the mirror roller (43) stroke The upper and lower layers are bonded to each other, and then introduced into the rolling stroke of the two-pattern roller (44) via the sixth guide roller (54), so that the substrate (11), the printed layer (12) and the wear layer (13) are The rolling unit (40) is rolled and bonded into one body.

The plastic floor (10) formed by the above-mentioned process method can not only have a layered structure such as soft and hard and elasticity, but can provide a more comfortable and stable quality use effect, and at the same time, it is completed by automated equipment during molding, and does not need to be The traditional glue adheres to each structural layer, so it is efficient in production and more environmentally friendly.

In summary, this creation has its excellent progress and practicality in similar products. At the same time, it has not been found in the technical materials of such structures at home and abroad, and the same structure exists in the literature. The creation already has new patent requirements, and the application is filed according to law.

The above embodiments are intended to exemplify the present invention, and various modifications, modifications, and applications to those skilled in the art are intended to be included in the scope of the present invention.

Claims (8)

A molding method for a plastic floor layer structure, the plastic floor comprising at least a substrate, a printing layer and a wear layer, wherein: the substrate is at least two extruders combined with a dispenser, and then the extrusion head under the distributor The multi-layer structure is integrally formed by co-extrusion, and has at least a first substrate layer and a second substrate layer having different hardnesses, and the substrate layers are integrally bonded to each other when co-extrusion; the printed layer is formed Forming a predetermined pattern or texture on the upper edge of the substrate; the wear layer is formed on the printed layer; after the substrate is co-extruded, the printed layer and the wear layer are sent by a roll The equipment is respectively sent to a rolling unit, which is a five-roll calender, which comprises a frame, and first and second conveying rollers and a mirror roller which are arranged on the frame in a horizontal direction. a second pattern roll, and a plurality of guide rolls and press rolls, the substrate is extruded and transported between the two transfer rolls, and then introduced into the roll press stroke of the mirror roll via a third guide roll, and the printed layer is passed through Fourth guide roller and third roller guide Rolling stroke of the mirror roller, the wear layer is introduced into the rolling stroke of the mirror roller via the fifth guide roller and the fourth pressing roller, so that the substrate, the printing layer and the wear layer are subjected to a rolling stroke of the mirror roller The upper and lower layers are bonded to each other, and then introduced into the rolling stroke of the two-patterned roller through the sixth guide roller, so that the substrate, the printing layer and the wear-resistant layer are rolled and bonded by the rolling unit, so that the plastic floor has various kinds of The layered structure of different hardness is more efficient and environmentally friendly at the same time. The method for molding a plastic floor layer structure according to claim 1, wherein the substrate can be a two-layer structure, and the first substrate layer located in the lower layer can add a plasticizer to the PVC material and exhibit soft characteristics. The second substrate layer located in the upper layer may be a PVC material containing no plasticizer, exhibiting a hard property. The method for molding a plastic floor layer structure according to claim 1, wherein the substrate may have a three-layer structure, and the first substrate layer located at the lowermost layer may be a PVC material without a plasticizer and exhibits a hard property. The second substrate layer in the middle may be added with a foaming agent for the PVC material to exhibit elastic properties, and the third substrate layer of the uppermost layer may be a PVC material without a plasticizer, exhibiting a hard property and keeping the floor size stable. The method for molding a plastic floor layer structure according to claim 1, wherein the substrate may have a three-layer structure, and the first substrate layer located at the lowermost layer may be a PVC material containing a plasticizer, exhibiting soft characteristics, and the middle The second substrate layer may be a foaming agent added to the PVC material and exhibits elastic properties, and the third substrate layer of the uppermost layer may be a PVC material containing no plasticizer, exhibiting a hard characteristic to enhance the pedaling feel. The method for molding a plastic floor layer structure according to claim 1, wherein the substrate may have a three-layer structure, and the first substrate layer located at the lowermost layer may be a PVC material containing a plasticizer, exhibiting soft characteristics, and the middle The second substrate layer may be a PVC material without adding a foaming agent, without adding a plasticizer, and exhibiting a rigid property, and the third substrate layer of the uppermost layer may be a PVC material of a plasticizer, exhibiting an elastic property. The method for molding a plastic floor layer structure according to claim 1, wherein the substrate may have a three-layer structure, and the first substrate layer located at the lowermost layer may be a plastic material added to the PVC material, exhibiting soft characteristics, and the middle The second substrate layer may be a PVC material to be foamed by gas addition, does not contain any foaming agent, and exhibits elastic properties, and the third substrate layer of the uppermost layer may be a PVC material containing a plasticizer, exhibiting soft characteristics. Make the overall floor size stable and elastic. According to the method for molding a plastic floor layer structure according to claim 1, wherein the bottom of the substrate can be provided with a substrate, the substrate can be a PVC film, and different patterns can be designed according to customer requirements to achieve slip resistance. Reduce noise. The method for molding a plastic floor layer structure according to claim 1, wherein the winding device comprises a wear layer unwinding mechanism, a printing layer unwinding mechanism, a wear layer bonding mechanism, and a printing layer bonding. The mechanism and the guiding mechanism, the wear layer is fed to the rolling unit by using the wear layer unwinding mechanism and the wear layer bonding mechanism, and the printing layer uses the printing layer unwinding mechanism to match the printing layer The bonding mechanism and the guiding mechanism are rewound to the rolling unit.