Process for producing wood grain sports floor

Abstract

This invention relates to the field of PVC flooring technology and discloses a manufacturing process for wood grain sports flooring, comprising the following steps: S1, using continuously conveyed high-temperature release paper as a carrier, coating a first layer of paste onto it, and then heating and curing it in an oven; S2, using a roller printing device to print the wood grain paste onto the surface of the substrate output in step S1 to form a printed wood grain layer, and then heating and curing it in an oven; S3, coating a second layer of paste onto the surface of the substrate output in step S2, and then heating and curing it in an oven; S4, coating a foaming layer of paste onto the surface of the substrate output in step S3, and then heating and foaming it in an oven; S5, peeling off the high-temperature release paper and outputting the finished roll material. This invention's wood grain sports flooring manufacturing process, through layer-by-layer coating and heating and curing, enables online bonding of each layer, avoiding offline bonding and the need for additional adhesives or hot pressing steps, and also facilitates control over the thickness accuracy of the sports flooring.

Description

Technical Field

[0001] This invention relates to the field of PVC flooring technology, and more particularly to a manufacturing process for wood grain sports flooring. Background Technology

[0002] PVC sports flooring is a popular new type of lightweight flooring material, also known as "lightweight flooring." It entered the Chinese market in the early 1980s and has since gained widespread acceptance in major and medium-sized cities across China. Due to its excellent physical properties and the cushioning effect of its foamed backing, PVC sports flooring is widely used in indoor sports venues such as volleyball courts, basketball courts, table tennis courts, badminton courts, and gyms.

[0003] Adding wood grain patterns to the surface of PVC sports flooring improves its appearance and enhances the visual comfort of athletes. Currently, production often employs cold-applied or hot-applied methods to bond printed films with wood grain patterns. These printed films need to be purchased separately by the flooring manufacturer and then offline laminated, meaning the printed film is fixedly attached to the top surface of the PVC sports flooring. For example, the invention patent with publication number CN109098392A uses an interface agent to bond a rubber wear-resistant layer to a PVC composite layer, resulting in a novel rubber-plastic sports flooring. However, this offline bonding or hot-pressing method suffers from drawbacks such as complex processes and high costs.

[0004] Although the invention patent with announcement number CN116604958A adopts the method of directly printing wood grain online, it first coats a printing layer with wood grain color, then cures the coated printing layer and then uses an embossing roller to emboss. However, this technical solution has a long distribution space, the structure is not compact enough, the printing roller needs to be heated and reshaped, and the texture of the surface of the processed wood grain sports floor is poor.

[0005] To overcome the above problems, a wood grain sports flooring production process is needed. Summary of the Invention

[0006] The purpose of this invention is to provide a manufacturing process for wood grain sports flooring, in which the wood grain layer is directly set between the surface layers, and the surface of the flooring has a strong texture, which improves the tactile feel for athletes.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] This invention discloses a wood grain sports floor, comprising a surface layer one, a wood grain layer, a surface layer two, and a foam layer stacked together from top to bottom. The surface layer one as a whole undergoes concave-convex deformation as the texture of the wood grain layer changes.

[0009] Furthermore, the bottom surface of the foamed layer is also laminated with a base layer.

[0010] This invention also discloses a manufacturing process for wood grain sports flooring, comprising the following steps:

[0011] S1. Using continuously conveyed high-temperature release paper as a carrier, the surface layer of slurry is coated on it and then heated and cured in an oven.

[0012] S2. Using a roller printing device, the wood grain paste is printed onto the surface of the substrate output in step S1 to form a printed wood grain layer, and then placed in an oven for heating and curing.

[0013] S3. The substrate surface output in step S2 is coated with the second layer of slurry and then placed in an oven for heating and curing.

[0014] S4. The slurry for coating the foaming layer on the substrate surface output in step S3 is then placed in an oven for heating and foaming curing.

[0015] S5. Peel off the high-temperature release paper and output the finished roll material.

[0016] Furthermore, the wood grain slurry used in step S2 is made by soaking and grinding organic pigments with a plasticizer.

[0017] Furthermore, the roller printing device used in step S2 includes a frame and a wood grain roller, a rubber roller, an ink-dipping roller, an ink-coating roller, a doctor blade, and an ink basin mounted on the frame. The ink basin is horizontally positioned directly below the wood grain roller. The ink-dipping roller and the ink-coating roller dip into the wood grain paste in the ink basin and apply it to the wood grain roller with its raised texture. The doctor blade is positioned on one side of the wood grain roller to remove excess wood grain paste. The two rubber rollers guide the substrate output from step S1 onto the wood grain roller.

[0018] Furthermore, the roller printing device also includes an air-filled roller, which rolls and contacts the wood grain roller and presses the substrate output in step S1. The outer wall of the adhesive layer of the air-filled roller has multiple grooves evenly distributed around its circumference. The grooves that contact the wood grain roller bulge out compressed air to press the substrate output in step S1. The two air-filled rollers operate in conjunction to ensure that the substrate output in step S1 is continuously squeezed by compressed air.

[0019] Furthermore, the air-filled roller also includes a coaxially nested outer cylinder base and an inner cylinder. The inner cylinder is coaxially fixedly connected to a tube shaft at both ends. The tube shaft supports the outer cylinder base through bearings. The outer end of the tube shaft is mounted on the frame through a support seat. One end of the tube shaft is provided with an air pipe connector for introducing compressed air. The outer wall of the outer cylinder base is bonded with the adhesive layer. A vent hole penetrating the cylinder wall of the outer cylinder base is opened at the bottom of the groove. The inner cylinder has an air outlet structure at the same axial position as the vent hole.

[0020] Furthermore, the air outlet structure includes a waist-shaped hole and a sealing ring. The waist-shaped hole is formed on the inner cylinder wall, and the long side of the waist-shaped hole is arranged along the axial direction. An annular sealing groove with a waist-shaped profile is provided around the waist-shaped hole. The sealing ring is installed in the annular sealing groove and can seal the gap between the outer cylinder base and the inner cylinder.

[0021] Furthermore, a synchronous pulley is coaxially provided at one end of the outer cylinder base that protrudes from the end face of the wood grain roller, and the two synchronous pulleys of the two air-filled rollers are connected by a synchronous belt drive.

[0022] Furthermore, the support base is provided with a set screw, and the outer wall of the tube shaft end is provided with an air outlet orientation mark at the same circumferential angle position as the waist-shaped hole; the inner end of the set screw abuts against the outer wall of the tube shaft end.

[0023] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0024] The wood grain sports flooring disclosed in this invention features a wood grain layer sandwiched between surface layer one and surface layer two. This design provides excellent durability and prevents wear and discoloration. Surface layer one, by conforming to the texture of the wood grain layer, creates an uneven surface, improving the appearance, enhancing the feel underfoot for athletes, and increasing friction. The high density of the cured bottom layer prevents damage to the foam layer when subjected to hard objects.

[0025] This invention's wood grain sports flooring production process, through layer-by-layer coating and heat curing, enables online bonding of each layer, avoiding offline bonding requiring additional adhesives or hot pressing steps, and facilitating precise control of the sports flooring's thickness. Using plasticizer-impregnated organic pigments as ink for the wood grain layer increases the bonding strength with the surface layer, preventing it from peeling off the glass. The organic pigments have good lightfastness, resisting ultraviolet radiation, and the sandwiching of the wood grain layer between the two surface layers effectively prevents the printed wood grain layer made with organic pigments from wearing away. The roller printing device used in this invention's wood grain sports flooring production process utilizes inflatable rollers to achieve deep embossing, significantly improving the textured appearance of the product compared to using only rubber rollers. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] Figure 1 This is a schematic cross-sectional view of the wood grain sports flooring of the present invention;

[0028] Figure 2 This is a flowchart illustrating the manufacturing process of the wood grain sports flooring of this invention.

[0029] Figure 3This is a schematic diagram of the printing equipment structure in the wood grain sports flooring production process of the present invention;

[0030] Figure 4 for Figure 3 A partially enlarged structural diagram of the central air-filling roller section;

[0031] Figure 5 for Figure 3 Top view of the air-filling roller section;

[0032] Figure 6 This is a schematic diagram of the longitudinal cross-sectional structure of the end of the air-filled roller in this invention.

[0033] Explanation of reference numerals in the attached diagram: 1. Top layer one; 2. Wood grain layer; 3. Top layer two; 4. Intermediate layer; 5. Bottom layer; 6. Wood grain roller; 7. Air roller; 701. Adhesive layer; 702. Groove; 703. Vent hole; 704. Outer cylinder base; 705. Inner cylinder; 706. Waist-shaped hole; 707. Sealing ring; 708. Tube shaft; 709. Air pipe connector; 710. End baffle; 711. Synchronous pulley; 8. Adhesive roller; 9. Ink dip roller; 10. Ink coating roller; 11. Doctor blade; 12. Ink basin; 13. Synchronous belt; 14. Support seat; 15. Top screw. Detailed Implementation

[0034] The core of this invention is to provide a wood grain sports flooring production process, in which the wood grain layer is directly set between the surface layers, and the surface of the flooring has a strong texture, which improves the tactile feel for athletes.

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0036] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0037] Refer to the attached diagram. Figure 1 This is a schematic cross-sectional view of the wood grain sports flooring of the present invention; Figure 2 This is a flowchart illustrating the manufacturing process of the wood grain sports flooring of this invention. Figure 3This is a schematic diagram of the printing equipment structure in the wood grain sports flooring production process of the present invention; Figure 4 for Figure 3 A partially enlarged structural diagram of the central air-filling roller section; Figure 5 for Figure 3 Top view of the air-filling roller section; Figure 6 This is a schematic diagram of the longitudinal cross-sectional structure of the end of the air-filled roller in this invention.

[0038] Example 1

[0039] In one specific implementation, such as Figure 1 As shown, the wood grain sports floor produced by the present invention includes a surface layer 1, a wood grain layer 2, a surface layer 3, and a foam layer 4 stacked together from top to bottom. Surface layer 1 and surface layer 3 are both transparent. Wood grain layer 2 is a color and pattern display layer. Surface layer 1 as a whole undergoes concave-convex deformation as the texture of wood grain layer 2 changes.

[0040] like Figure 1 As shown, the bottom surface of the foam layer 4 is also laminated with a bottom layer 5. Specifically, the top layer 1, top layer 2 3, foam layer 4, and bottom layer 5 are all made by curing different fillers and different proportions of PVC resin-based materials. Top layer 1 and top layer 2 3 have good wear resistance, and a UV protectant is added to top layer 1. Among them, the bottom layer 5 has a high density after curing, which can prevent the foam layer 4 from being damaged when it is punctured by hard objects.

[0041] In one specific embodiment, the thickness of surface layer 1 is 0.1 to 0.3 mm, the thickness of wood grain layer 2 is 0.02 to 0.05 mm, the thickness of surface layer 3 is 0.1 to 0.3 mm, the thickness of foam layer 4 is 2 to 4 mm, the thickness of bottom layer 5 is 1 to 2 mm, and the total thickness is controlled at about 4.5 mm.

[0042] By sandwiching a wood grain layer 2 between surface layer 1 and surface layer 3, the surface layer 1 has good firmness and can prevent wear and discoloration. The surface layer 1 as a whole deforms with the texture of the wood grain layer 2, which improves the appearance, makes the feet of athletes feel better, and increases friction.

[0043] Example 2

[0044] This invention also discloses a manufacturing process for wood grain sports flooring, such as... Figure 2 As shown, it includes the following steps:

[0045] S1. Using continuously conveyed high-temperature release paper or high-temperature cloth as a carrier, a surface layer of slurry is coated on the carrier and then heated and cured in an oven.

[0046] S2. Using a roller printing device, the wood grain paste is printed onto the surface of the substrate output in step S1 to form a printed wood grain layer, and then placed in an oven for heating and curing.

[0047] S3. The substrate surface output in step S2 is coated with the second layer of slurry and then placed in an oven for heating and curing.

[0048] S4. The slurry for coating the foaming layer on the substrate surface output in step S3 is then placed in an oven for heating and foaming curing.

[0049] S5. Peel off the high-temperature release paper and output the finished roll material.

[0050] In one specific embodiment, the wood grain sports flooring production process of the present invention further includes a bottom layer process between steps S4 and S5, wherein the substrate surface output in step S4 is coated with a bottom layer slurry and then heated and cured in an oven.

[0051] By applying the coating layer by layer and heating to cure it, the layers can be bonded together online, avoiding the need for offline bonding and additional adhesive or hot pressing steps. This also makes it easier to control the thickness accuracy of the sports flooring.

[0052] In one specific implementation of this embodiment, such as Figure 2 As shown, the wood grain paste used in step S2 is made by soaking and grinding organic pigments with plasticizers. After grinding, it needs to be filtered through a 350-mesh screen before use.

[0053] Using plasticizer-impregnated organic pigments as ink for the wood grain layer increases the bonding strength with the surface layer and prevents it from peeling off the glass. Organic pigments have good lightfastness and can resist ultraviolet radiation. Moreover, the wood grain layer sandwiched between the two surface layers can effectively prevent the printed wood grain layer made of organic pigments from being worn away.

[0054] In one specific implementation of this embodiment, such as Figures 3-6 As shown, the roller printing device used in step S2 includes a frame and a wood grain roller 6, a rubber roller 8, an ink-dipping roller 9, an ink-coating roller 10, a doctor blade 11, and an ink basin 12 mounted on the frame. The ink basin 12 is horizontally positioned directly below the wood grain roller 6. The ink-dipping roller 9 and the ink-coating roller 10 dip into the wood grain paste in the ink basin 12 and apply it to the wood grain roller 6, which has a raised texture. The doctor blade 11 is positioned on one side of the wood grain roller 6 to remove excess wood grain paste. The two ends of the wood grain roller 6 are smooth roller sections with slightly increased diameters. The side blade of the doctor blade 11 abuts against the smooth roller sections, which can prevent the complete removal of the locally protruding parts of the wood grain paste in the middle of the wood grain section of the wood grain roller 6. Two rubber rollers 8 are positioned above and below the sides to guide the substrate output from step S1 onto the wood grain roller 6. The temperature range of the substrate after exiting the oven in step S1 is between 40 and 60°C. That is, the substrate has good plasticity within this temperature range and can produce preliminary textured patterns under the pressing force of the rubber roller 8.

[0055] By setting the scraper 11, it can be ensured that the wood grain section in the middle of the wood grain roller 6 is fully coated with the wood grain slurry; the substrate output by the extrusion step S1 through the cooperation of the rubber roller 8 and the wood grain roller 6 can initially extrude the uneven texture on the substrate.

[0056] In one specific implementation of this embodiment, such as Figures 3-6 As shown, the roller printing device also includes an inflatable roller 7, which rolls and contacts the wood grain roller 6, pressing the substrate output in step S1. The outer wall of the adhesive layer 701 of the inflatable roller 7 has multiple grooves 702 evenly distributed around its circumference. Compressed air bulges out from the grooves 702 that contact the wood grain roller 6, pressing the substrate output in step S1. The grooves 702 are centrally located and not open at both ends. The length of the grooves 702 is adapted to the wood grain section in the middle of the wood grain roller 6. The width of the grooves 702 is greater than the width of the outer wall between two adjacent grooves 702. The two inflatable rollers 7 operate in tandem, ensuring that the substrate output in step S1 is continuously compressed by compressed air.

[0057] During the rolling of the air roller 7, when the groove 702 faces the wood grain roller 6, the adhesive edge around the groove 702 contacts the release paper of the substrate output in step S1, forming an instantaneous sealed chamber. The compressed air filling this sealed chamber compresses the substrate, allowing it to better adhere to the uneven surface of the wood grain roller 6 and better absorb the wood grain paste. Simultaneously, during the compression process, because the surface texture of the wood grain roller 6 is continuous and wider than the groove 702, air or wood grain paste does not accumulate, making it easier to create a radiating effect at the wood grain stripes. Through the coordinated operation of the air rollers 7, the strip-shaped areas of the first air roller 7 that were not compressed by air are covered by the groove 702 of the next air roller 7, ensuring that the entire surface of the strip-shaped substrate output in step S1 is continuously compressed by compressed air, achieving deep embossing of the entire substrate.

[0058] Specifically, such as Figures 3-6 As shown, the air-filled roller 7 also includes a coaxially nested outer cylinder base 704 and an inner cylinder 705. The inner cylinder 705 has a tube shaft 708 coaxially welded to both ends, and the inner cavity is interconnected. The tube shaft 708 supports the outer cylinder base 704 via bearings. An end baffle 710 with a positioning bearing is provided at the end of the outer cylinder base 704, meaning the outer cylinder base 704 rotates with the wood grain roller 6, while the inner cylinder 705 does not rotate. The outer end of the tube shaft 708 is mounted on the frame via a support seat 14. One end of the tube shaft 708 is equipped with an air pipe connector 709 for introducing compressed air. The air pipe connector 709 is connected via a hose to a gas cylinder or air pump storing clean, dry compressed air. A valve assembly is installed on the air pipe as needed. A composite adhesive layer 701 is bonded to the outer wall of the outer cylinder base 704. A vent hole 703 penetrating the cylinder wall of the outer cylinder base 704 is opened at the bottom of the groove 702. The inner cylinder 705 has an air outlet structure at the same axial position as the vent hole 703.

[0059] Specifically, the air pressure supplied to the air pipe connector 709 is 0.25 to 0.35 MPa, that is, the compressed air supplied to the groove 702 is low-pressure compressed air, so as to avoid cracking or breaking the substrate.

[0060] Obviously, as Figure 6 As shown, the number of vent holes 703 can be multiple and they are evenly spaced along the length of the groove 702. Correspondingly, the number of the air outlet structure is also multiple, which is consistent with the number of vent holes 703 in one groove 702 and is set one-to-one.

[0061] Specifically, such as Figure 4 and Figure 6 As shown, the venting structure includes a waist-shaped hole 706 and a sealing ring 707. The waist-shaped hole 706 is formed on the wall of the inner cylinder 705, and its long side is arranged along the axial direction. An annular sealing groove with a waist-shaped profile is provided around the waist-shaped hole 706. The sealing ring 707 is installed in the annular sealing groove and can seal the gap between the outer cylinder base 704 and the inner cylinder 705.

[0062] By setting up a coaxially nested outer cylinder base 704 and inner cylinder 705, during the rolling process of the outer cylinder base 704, different vent holes 703 are connected to the waist-shaped holes 706 facing the wood grain roller 6 to guide air. Compressed air from the inner cylinder 705 is introduced into the continuously switching grooves 702 for air compression, thus performing deep embossing on the substrate. By setting the air outlet structure as a waist-shaped hole 706, axial error can be compensated, ensuring effective air guidance. The sealing ring 707 prevents compressed air from leaking from the gap between the outer cylinder base 704 and inner cylinder 705 if it fails to enter the grooves 702.

[0063] In one specific implementation of this embodiment, such as Figure 3 and Figure 5 As shown, a synchronous pulley 711 is coaxially fixedly installed at one end of the outer cylinder base 704 that protrudes from the end face of the wood grain roller 6, and the two synchronous pulleys 711 of the two air rollers 7 are connected by a synchronous belt 13.

[0064] Obviously, the two outer cylinder bases 704 of the two inflatable rollers 7 can also be connected by sprockets and chains to ensure that the two outer cylinder bases 704 roll synchronously and in unison. The staggered grooves 702 of the two inflatable rollers 7 can perform deep embossing on the entire substrate. Similar simple replacement methods all fall within the protection scope of this invention.

[0065] In one specific implementation of this embodiment, such as Figure 5 and Figure 6As shown, a set screw 15 is provided on the support base 14, and an air outlet orientation mark is provided on the outer wall of the end of the tube shaft 708 at the same circumferential angle position as the waist-shaped hole 706. That is, the air outlet orientation mark and the waist-shaped hole 706 are at the same angular position. The inner end of the set screw 15 abuts against the outer wall of the end of the tube shaft 708 to circumferentially lock the tube shaft 708.

[0066] By adding a set screw 15 to the support base 14, the circumferential position of the tube shaft 708 and the inner cylinder 705 can be adjusted and effectively locked; by setting the air outlet orientation mark on the outer wall of the end of the tube shaft 708, it is convenient to observe when adjusting the air outlet orientation of the waist-shaped hole 706.

[0067] During the wood grain printing process in the production process of the wood grain sports floor of this invention: (e.g.) Figure 3 As shown, the ink-dipping roller 9 and the ink-coating roller 10 dip into the wood grain paste in the ink basin 12 and apply it to the wood grain roller 6 with its raised texture. The scraper 11 removes excess wood grain paste from one side of the wood grain roller 6. Two adhesive rollers 8 guide the substrate output from step S1 onto the wood grain roller 6 from above and below. During the attachment and conveying process, the wood grain paste on the wood grain roller 6 is transferred onto the surface of surface layer 1. During this process, the adhesive layer 701 of both air-filled rollers 7 rolls in contact with the wood grain roller 6. As the air-filled rollers 7 roll, when the grooves 702 face the wood grain roller 6, the adhesive layer edges around the grooves 702 contact the release paper on the back of the substrate output in step S1, forming a momentary sealed chamber. Compressed air is filled into this momentary sealed chamber and squeezes the substrate, allowing the substrate to better conform to the uneven surface of the wood grain roller 6 and better pick up the wood grain paste in the grooves. The forming position and pattern texture remain consistent, achieving deep embossing compared to the roller pressing method. The two outer cylinder bases 704 are connected by a synchronous pulley 711 and a synchronous belt 13, ensuring that the two outer cylinder bases 704 roll synchronously. The grooves 702 of the two air-filled rollers 7 are staggered and continuously apply pressure, enabling deep embossing of the entire substrate surface.

[0068] In summary, the wood grain sports flooring production process of this invention, through layer-by-layer coating and heat curing, enables online bonding of each layer, avoiding the need for offline bonding and additional adhesive or hot pressing steps, and facilitating the control of the sports flooring thickness accuracy. Using plasticizer-impregnated organic pigments as ink for the wood grain layer increases the bonding strength with the surface layer and prevents it from peeling off the glass; the organic pigments have good lightfastness, resisting ultraviolet radiation, and the sandwiching of the wood grain layer between the two surface layers effectively prevents the printed wood grain layer made of organic pigments from being worn away. The roller printing device used in the wood grain sports flooring production process of this invention, utilizing an inflatable roller 7, can achieve deep embossing, significantly improving the textured appearance of the product compared to using only a rubber roller.

[0069] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0070] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A process for producing a wood grain sports floor, characterized in that, The method comprises the following steps: S1, continuously conveying high-temperature release paper as a carrier, coating the first surface layer slurry on it, and entering the oven for heating and curing; S2, using a roller printing device to print the wood grain slurry to the surface of the substrate output in step S1 to form a printed wood grain layer, and entering the oven for heating and curing; S3, coating the second surface layer slurry on the surface of the substrate output in step S2, and entering the oven for heating and curing; S4, coating the foaming layer slurry on the surface of the substrate output in step S3, and entering the oven for heating and foaming curing; S5, peeling off the high-temperature release paper, and outputting the finished product roll: The roller printing device used in step S2 comprises a rack and a wood grain roller (6), a rubber roller (8), an ink dipping roller (9), an ink coating roller (10), a scraper (11), and an ink basin (12) arranged on the rack, the ink basin (12) is horizontally arranged directly below the wood grain roller (6), the ink dipping roller (9) and the ink coating roller (10) dip the wood grain slurry in the ink basin (12) and coat it on the wood grain roller (6) with concave-convex texture, the scraper (11) is arranged on one side of the wood grain roller (6) to remove excess wood grain slurry, and two rubber rollers (8) are used to attach and guide the substrate output in step S1 to the wood grain roller (6); The roller printing device further comprises an air-filled roller (7) which is in rolling contact with the wood grain roller (6) and presses the substrate output in step S1, the air-filled roller (7) has a plurality of strip grooves (702) uniformly distributed on the outer wall of the rubber layer (701) in the circumferential direction, and the strip grooves (702) in contact with the wood grain roller (6) are inflated to press the substrate output in step S1; two air-filled rollers (7) are linked and operated to ensure that the substrate output in step S1 is continuously pressed by compressed air; The air-filled roller (7) further comprises a coaxially nested outer cylinder base body (704) and an inner cylinder (705), the two ends of the inner cylinder (705) are fixedly connected with a pipe shaft (708) which supports the outer cylinder base body (704) through a bearing, the outer end of the pipe shaft (708) is installed on the rack through a support seat (14), and one end of the pipe shaft (708) is provided with an air pipe joint (709) for introducing compressed air; the outer wall of the outer cylinder base body (704) is bonded with the rubber layer (701), the bottom of the strip groove (702) is provided with an air hole (703) penetrating through the cylinder wall of the outer cylinder base body (704), and the inner cylinder (705) is provided with an air outlet structure at the same axial position of the air hole (703).

2. The wood grain sports floor production process according to claim 1, characterized in that: The wood grain slurry used in step S2 is made of organic pigments soaked and ground with plasticizers.

3. The wood grain sports floor production process according to claim 1, characterized in that: The air outlet structure comprises a waist-shaped hole (706) and a sealing ring (707), the waist-shaped hole (706) is arranged on the cylinder wall of the inner cylinder (705), and the long side direction of the waist-shaped hole (706) is arranged along the axial direction; the waist-shaped hole (706) is provided with a ring-shaped sealing groove with a waist-shaped contour, and the sealing ring (707) is installed in the ring-shaped sealing groove and can seal the gap between the outer cylinder base body (704) and the inner cylinder (705).

4. The wood grain sports floor production process according to claim 1, characterized in that, The outer cylinder base (704) is coaxially provided with a synchronous wheel (711) at one end of the end face of the wood grain roller (6), and the two synchronous wheels (711) of the two inflatable rollers (7) are drivingly connected through a synchronous belt (13).

5. The wood grain sports floor production process according to claim 3, characterized in that: The support seat (14) is provided with a jackscrew (15), and the outer wall of the end portion of the tube shaft (708) is provided with a gas outlet direction mark at the same circumferential angle position of the waist-shaped hole (706); and the inner end head of the jackscrew (15) abuts against the outer wall of the end portion of the tube shaft (708).

Images