Composite sofa cloth and production process thereof

Abstract

The invention relates to composite sofa cloth and a production process thereof, and belongs to the technical field of textiles, the composite sofa cloth comprises a base layer, an interlayer and a surface layer, the base layer is used for being attached to a sofa, a first caulking groove is formed in the side, away from the sofa, of the base layer, and the interlayer is bonded to the side, away from the sofa, of the base layer and is made of a porous elastic material; the surface layer is bonded to the side, away from the base layer, of the interlayer, a second embedding groove is formed in the side, close to the interlayer, of the surface layer, and the surface layer is made of abrasion-resistant materials. The composite sofa fabric has the advantages that the base layer and the surface layer can be stably attached to the two sides of the interlayer, the layering possibility of the base layer, the interlayer and the surface layer is reduced, and the problem that the service life is affected due to the fact that the composite sofa fabric is prone to layering is solved.

Description

Technical Field

[0001] The present application relates to the technical field of textiles, and in particular to a composite sofa fabric and a production process thereof. Background Art

[0002] As the surface layer of the sofa, the sofa fabric not only directly reflects the appearance of the sofa, but also directly contacts with the occupants, reflecting the comfort of the sofa. Common sofa fabrics on the market include cotton, linen, chemical fiber and other materials. Although these materials have good air permeability and comfort, they are limited in wear resistance. Therefore, composite materials, which are both comfortable and wear-resistant, are becoming more and more popular in the market.

[0003] At present, in order to take into account the properties of flexibility, air permeability and wear resistance, composite sofa fabrics are usually made by applying adhesives to multiple layers of composite materials with different characteristics and then pressing them together to form a sofa fabric with multiple properties. However, after long-term use and repeated cleaning, the bonding effect of the adhesive decreases, which will cause the layers of the composite sofa fabric to peel off easily, resulting in stratification, which affects the service life of the composite sofa fabric. Summary of the invention

[0004] In order to improve the problem that composite sofa fabrics are easily delaminated and thus affect the service life, the present application provides a composite sofa fabric and a production process thereof.

[0005] The composite sofa fabric provided by the present application adopts the following technical solution: A composite sofa fabric comprises a base layer, an interlayer and a surface layer, wherein the base layer is used to be attached to a sofa, a first embedding groove is provided on a side of the base layer away from the sofa, the interlayer is bonded and arranged on a side of the base layer away from the sofa, the interlayer is made of a porous elastic material, the surface layer is bonded and arranged on a side of the interlayer away from the base layer, a second embedding groove is provided on a side of the surface layer close to the interlayer, and the surface layer is made of a wear-resistant material.

[0006] By adopting the above technical scheme, a porous elastic material interlayer is used to meet the air permeability and flexibility of the sofa release, and a wear-resistant material surface layer is used to meet the wear resistance of the sofa release, and the first embedding groove on the base layer allows the interlayer and the adhesive to be embedded, thereby increasing the stability of the interlayer when bonded to the base layer, and the second embedding groove on the surface layer allows the other side of the interlayer and the adhesive to be embedded, thereby increasing the stability of the surface layer when bonded to the interlayer, thereby allowing the base layer and the surface layer to be firmly attached to both sides of the interlayer, reducing the possibility of delamination of the base layer, the interlayer and the surface layer, and improving the problem of easy delamination of the composite sofa release and affecting the service life.

[0007] Optionally, the opening size of the first embedding groove is smaller than the internal opening size, and the opening size of the second embedding groove is smaller than the internal opening size.

[0008] By adopting the above technical solution, after the interlayer and the adhesive are embedded in the first embedding groove, the opening of the first embedding groove, which is smaller than the internal opening size, blocks the embedded interlayer and adhesive, further improving the stability of the bonding between the base layer and the interlayer; after the interlayer and the adhesive are embedded in the second embedding groove, the opening of the second embedding groove, which is smaller than the internal opening size, blocks the embedded surface layer and adhesive, further improving the stability of the bonding between the surface layer and the interlayer.

[0009] The present application provides a composite sofa fabric production process using the following technical solutions: A composite sofa fabric production process comprises the following steps: S1: Load the base layer, interlayer and surface layer through the loading mechanism; S2: forming a first embedding groove on the base layer and a second embedding groove on the surface layer by an embossing mechanism; S3: Apply the adhesive to the base layer and the side of the surface layer close to the interlayer through the glue coating mechanism; S4: The base layer, the interlayer and the surface layer are hot pressed by a hot pressing mechanism.

[0010] Optionally, the feeding mechanism includes a frame, a feeding roller, a winding roller and a driving assembly, at least three feeding rollers are rotatably arranged on the frame, the base layer, the interlayer and the surface layer are respectively wound on different feeding rollers, the winding roller is rotatably arranged on the frame and is used for winding up the sofa fabric formed by hot pressing, and the driving assembly is arranged on the frame and is used for driving the winding roller to rotate.

[0011] By adopting the above technical scheme, the staff will respectively put the rolled raw materials of the base layer, interlayer and surface layer on three different feeding rollers, and pull the base layer and surface layer through the embossing mechanism, and then pull the base layer and surface layer through the gluing mechanism, and then pass the base layer, interlayer and surface layer through the hot pressing mechanism for hot pressing to form a sofa material, and then wind the sofa material onto the winding roller. The driving component drives the winding roller to rotate, so that the sofa material formed by hot pressing can be rolled up, and the base layer, interlayer and surface layer are pulled out at the same time, and the sofa material processing is continuously carried out to improve the production efficiency of the sofa material.

[0012] Optionally, the embossing mechanism includes a pressure-bearing roller, an embossing roller and a first protrusion, the pressure-bearing roller is rotatably set on a frame, the embossing roller is rotatably set on the frame, the base layer or the surface layer is inserted between the pressure-bearing roller and the embossing roller, a plurality of first protrusions are arranged on the embossing roller along the radial direction of the embossing roller, the plurality of first protrusions are distributed at intervals along the axial direction of the embossing roller, and the cross-sectional size of the first protrusion gradually decreases from an end away from the embossing roller to an end close to the embossing roller.

[0013] By adopting the above technical scheme, the staff passes the base layer or the surface layer through the pressure roller and the embossing roller. When the base layer or the surface layer passes through the pressure roller and the embossing roller, the first protrusion on the embossing roller squeezes the base layer or the surface layer onto the pressure roller. As the base layer or the surface layer moves, the multiple first protrusions radially installed along the embossing roller can continuously extrude the base layer or the surface layer to form a first embedded groove or a second embedded groove whose opening size is smaller than the internal opening size, thereby improving the convenience of processing and forming the first embedded groove on the base layer and the second embedded groove on the surface layer.

[0014] Optionally, a plurality of second protrusions are arranged on the embossing roller along the axial direction of the embossing roller, and the plurality of second protrusions are distributed at intervals along the radial direction of the embossing roller.

[0015] By adopting the above technical scheme, when the base layer or the surface layer passes through the embossing roller and the pressure-bearing roller, the multiple second protrusions installed along the axial direction of the embossing roller can extrude multiple grooves at intervals on the base layer or the surface layer, further improving the stability when the base layer or the surface layer is subsequently bonded to the interlayer, and the multiple grooves pressed out by the second protrusions can also make the multiple first embedded grooves on the base layer interconnected, and make the multiple second embedded grooves on the surface layer interconnected. During subsequent hot pressing, the interlayer embedded in the first embedded groove and the adhesive can be connected to form a whole, and the interlayer embedded in the second embedded groove and the adhesive can also be connected to form a whole, further improving the stability of the bonding between the base layer, the interlayer and the surface layer.

[0016] Optionally, a driving gear is coaxially arranged on the pressure roller, and a driven gear is arranged on the embossing roller, and the driving gear is meshed with the driven gear.

[0017] By adopting the above technical solution, when the base layer or the surface layer moves and drives the pressure roller and the embossing roller to rotate, the driving gear and the driven gear rotate synchronously, and the driving gear and the driven gear improve the synchronization of the rotation of the pressure roller and the embossing roller, thereby reducing the possibility that the pressure roller and the embossing roller rotate relative to each other, resulting in the second protrusion continuously pressing on the base layer or the surface layer and causing the groove formed on the base layer or the surface layer to be too wide, thereby reducing the possibility that the second protrusion presses the base layer or the surface layer and affects the performance of the base layer or the surface layer.

[0018] Optionally, the glue coating mechanism includes a glue coating roller and a glue supply assembly, and at least two glue coating rollers are rotatably arranged on a frame, and the base layer and the side of the surface layer close to the interlayer are respectively wound around different glue coating rollers, the inside of the glue coating roller is hollow, and the glue coating roller is provided with a plurality of glue outlet holes for the adhesive to flow out, and the glue supply assembly is arranged on the frame and is used to transport the adhesive into the glue coating roller.

[0019] By adopting the above technical solution, the staff will wrap the side of the base layer or the surface layer close to the interlayer onto the glue coating roller, and transport the adhesive to the glue coating roller through the glue supply component. The adhesive can flow out from the glue outlet holes on the glue coating roller. As the base layer and the surface layer move, the adhesive can be continuously applied to the side of the base layer or the surface layer close to the interlayer, thereby improving the convenience and efficiency of gluing the base layer or the surface layer.

[0020] Optionally, the hot pressing mechanism includes a hot pressing roller and a heating component, two hot pressing rollers are arranged on the frame, the base layer, the interlayer and the surface layer are arranged between the two hot pressing rollers, and the heating component is arranged on the hot pressing roller and is used to heat the hot pressing roller.

[0021] By adopting the above technical solution, the staff arranges the base layer, interlayer and surface layer from bottom to top and passes them through two hot pressing rollers. The heating component heats the hot pressing rollers. While the two hot pressing rollers heat the base layer and the surface layer, they can press the base layer, interlayer and surface layer tightly, so that the base layer, interlayer and surface layer are hot-pressed to form a multi-layer composite sofa fabric, thereby improving the tightness of the bonding between the base layer, interlayer and surface layer.

[0022] Optionally, the heating assembly includes a hot water tank, a hot water pump, a hot water pipe and a branch pipe, the hot water tank is arranged on a frame and is used to heat water, the hot water pump is connected to the hot water tank, the hot water pipe is wound around the inner wall of the heating roller, both ends of the hot water pipe are respectively connected to the hot water pump and the hot water tank, the branch pipe is connected to the hot water pump, the branch pipe is wound around the inner wall of the glue coating roller and connected to the hot water tank.

[0023] By adopting the above technical scheme, the hot water pump draws the hot water heated in the hot water tank into the hot water pipe and the branch pipe. The hot water pipe guides the water into the heating roller, and after heat exchange with the heating roller, it flows back to the hot water tank for reheating. The heating roller can be continuously heated. At the same time, the branch pipe guides the hot water into the glue coating roller, which can also heat the glue coating roller, thereby improving the fluidity of the adhesive in the glue coating roller, facilitating the adhesive in the glue coating roller to flow out from the glue outlet hole, and reducing the possibility that the glue outlet hole on the glue coating roller is blocked and affects the glue coating of the base layer and the surface layer.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. The first embedding groove on the base layer allows the interlayer and the adhesive to be embedded, increasing the stability of the interlayer when bonded to the base layer. The second embedding groove on the surface layer allows the other side of the interlayer and the adhesive to be embedded, increasing the stability of the surface layer when bonded to the interlayer, thereby allowing the base layer and the surface layer to be firmly attached to both sides of the interlayer, reducing the possibility of delamination of the base layer, the interlayer and the surface layer, and improving the problem of the composite sofa fabric being easily delaminated and affecting the service life; 2. As the base layer or the surface layer moves, the plurality of first protrusions radially installed along the embossing roller can continuously extrude on the base layer or the surface layer to form a first embedding groove or a second embedding groove whose opening size is smaller than the internal opening size, thereby improving the convenience of processing and forming the first embedding groove on the base layer and the second embedding groove on the surface layer; 3. The interlayer and adhesive embedded in the first embedding groove can be connected to form a whole, and the interlayer and adhesive embedded in the second embedding groove can also be connected to form a whole, further improving the stability of the bonding between the base layer, the interlayer and the surface layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the composite sofa according to an embodiment of the present application.

[0026] Figure 2 It is a structural schematic diagram of the composite sofa fabric production process of an embodiment of the present application.

[0027] Figure 3 It is a structural schematic diagram of another perspective of the embodiment of the present application.

[0028] Figure 4 It is a structural schematic diagram of the embossing mechanism of an embodiment of the present application.

[0029] 1. Base layer; 11. First embedded groove; 2. Interlayer; 3. Surface layer; 31. Second embedded groove; 4. Feeding mechanism; 41. Frame; 42. Feeding roller; 43. Winding roller; 44. Driving assembly; 5. Embossing mechanism; 51. Pressure roller; 52. Embossing roller; 53. First protrusion; 6. Gluing mechanism; 61. Gluing roller; 62. Glue supply assembly; 621. Glue storage box; 622. Glue pushing cylinder; 7. Hot pressing mechanism; 71. Hot pressing roller; 72. Heating assembly; 721. Hot water tank; 722. Hot water pump; 723. Hot water pipe; 724. Branch pipe; 8. Second protrusion; 9. Driving gear; 10. Driven gear; 20. Guide seat; 30. Adjusting screw; 40. Guide roller. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-4 This application is described in further detail.

[0031] The embodiments of the present application disclose a composite sofa fabric and a production process thereof.

[0032] Reference Figure 1A composite sofa fabric includes a base layer 1, an interlayer 2 and a surface layer 3. The base layer 1 is used to be attached to the surface of the sofa. The base layer 1 can be made of nylon fiber, polyester fiber and other materials. In this embodiment, the base layer 1 is made of nylon fiber, which has the characteristics of wear resistance, softness and breathability. A plurality of first embedding grooves 11 are opened on the side of the base layer 1 away from the sofa. The opening size of the first embedding groove 11 is smaller than the internal opening size of the first embedding groove 11. The interlayer 2 is attached to the side of the base layer 1 away from the sofa by an adhesive. The interlayer 2 is a porous elastic material. In this embodiment, the interlayer 2 is EVA foam. The material has the characteristics of heat preservation, good elasticity, good air permeability, good softness, etc., so that the sofa cover has good air permeability and flexibility, and the riding comfort is improved; the surface layer 3 is adhered to the side of the interlayer 2 away from the base layer 1 through an adhesive, and a plurality of second embedded grooves 31 are opened on the side of the interlayer 2 close to the interlayer 2, and the opening size of the second embedded groove 31 is smaller than the internal opening size of the second embedded groove 31. The surface layer 3 is made of wear-resistant material. In this embodiment, the surface layer 3 is made of polyester fiber, which has the characteristics of high strength and wear resistance, meets the wear resistance requirements of the sofa cover, and improves the service life of the sofa cover.

[0033] By providing the first embedding groove 11 on the base layer 1 and the second embedding groove 31 on the surface layer 3, when the base layer 1 and the surface layer 3 are respectively bonded to the two sides of the interlayer 2, the interlayer 2 and the adhesive can be embedded in the first embedding groove 11 and the second embedding groove 31. After the adhesive is subsequently solidified, the side walls at the openings of the first embedding groove 11 and the second embedding groove 31, whose opening sizes are smaller than the internal opening sizes, can position the interlayer 2 and the adhesive in the first embedding groove 11 and the second embedding groove 31, thereby reducing the possibility of the base layer 1 moving away from the interlayer 2 and the surface layer 3 moving away from the interlayer 2, enhancing the stability of the base layer 1 and the surface layer 3 being respectively bonded to the two sides of the interlayer 2, reducing the possibility of delamination of the base layer 1, the interlayer 2 and the surface layer 3, and improving the problem of easy delamination of the composite sofa fabric affecting the service life.

[0034] Reference Figure 1 , Figure 2 , a composite sofa fabric production process: comprising the following steps: S1: The base layer 1, the interlayer 2 and the surface layer 3 are loaded through the loading mechanism 4; S2: forming a first embedding groove 11 on the base layer 1 and a second embedding groove 31 on the surface layer 3 by means of the embossing mechanism 5; S3: Applying the adhesive to the base layer 1 and the side of the surface layer 3 close to the interlayer 2 through the glue coating mechanism 6; S4: The base layer 1, the interlayer 2 and the surface layer 3 are hot pressed by the hot pressing mechanism 7.

[0035] Reference Figure 2 , Figure 3The feeding mechanism 4 includes a frame 41, a feeding roller 42, a winding roller 43 and a driving assembly 44. At least three feeding rollers 42 are rotatably installed at one end of the frame 41. The three feeding rollers 42 are spaced apart from each other. The three feeding rollers 42 are respectively used to provide the rolled raw materials of the base layer 1, the interlayer 2 and the surface layer 3 for sleeve installation. The winding roller 43 is rotatably installed at the other end of the bracket. The winding roller 43 is used to roll up the hot-pressed sofa fabric. The driving assembly 44 is installed on the frame 41. The driving assembly 44 is used to drive the winding roller 43 to rotate. In this embodiment, the driving assembly 44 includes a driving motor and a driving belt. The driving motor is installed on the frame 41. The driving belt is sleeved on the output shaft of the driving motor and sleeved on the winding roller 43. When the driving motor is started, it can drive The driving belt rotates, and the driving belt in turn drives the winding roller 43 to rotate, thereby winding up the hot-pressed composite sofa fabric; and in the present embodiment, a plurality of guide seats 20 are also slidably installed on the frame 41 along the vertical direction, and an adjusting screw rod 30 is rotatably installed on the frame 41, and the adjusting screw rod 30 is threadedly connected to the guide seat 20, and a guide roller 40 is rotatably installed on the guide seat 20, and the guide roller 40 abuts against the base layer 1, the interlayer 2 or the surface layer 3 to guide the transmission of the base layer 1, the interlayer 2 and the surface layer 3, and the adjusting screw rod 30 can be rotated so that the guide roller 40 abuts against the base layer 1, the interlayer 2 or the surface layer 3, and the tension degree of the base layer 1, the interlayer 2 or the surface layer 3 during the transmission process is adjusted, thereby improving the stability of the base layer 1, the interlayer 2 and the surface layer 3 during the transmission process.

[0036] The staff puts the rolled base layer 1, interlayer 2 and surface layer 3 raw materials on three feeding rollers 42 from bottom to top in sequence, and pulls the base layer 1 and surface layer 3 to pass through the embossing mechanism 5, and then pulls the embossed base layer 1 and surface layer 3 to the gluing mechanism 6, and then pulls the base layer 1, interlayer 2 and surface layer 3 from bottom to top in sequence to the hot pressing mechanism 7, the hot pressing mechanism 7 hot presses the base layer 1, interlayer 2 and surface layer 3 to form a composite sofa fabric, and then winds the hot-pressed composite sofa fabric onto the winding roller 43, the driving component 44 drives the winding roller 43 to rotate, the winding roller 43 can wind up the hot-pressed composite sofa fabric, and pull the base layer 1, interlayer 2 and surface layer 3 on the feeding roller 42 to release, so as to realize the continuous processing of the composite sofa fabric, facilitate the automated processing and production of the composite sofa fabric, and improve the production efficiency of the composite sofa fabric.

[0037] Reference Figure 3 , Figure 4Two groups of embossing mechanisms 5 are installed on the frame 41, and the two groups of embossing mechanisms 5 are used to extrude the first embedded groove 11 on the base layer 1 and the second embedded groove 31 on the surface layer 3 respectively. The embossing mechanism 5 includes a pressure roller 51, an embossing roller 52 and a first protrusion 53. The pressure roller 51 is rotatably installed on the frame 41, and the embossing roller 52 is rotatably installed on the pressure roller 51. A gap is left between the embossing roller 52 and the pressure roller 51 for the base layer 1 or the surface layer 3 to pass through for embossing. A plurality of first protrusions 53 are circumferentially installed on the embossing roller 52 along the radial direction of the embossing roller 52, and the plurality of first protrusions 53 are distributed at intervals along the axial direction of the embossing roller 52. The cross-sectional size of the first protrusion 53 gradually increases from the end close to the embossing roller 52 to the end away from the embossing roller 52; a plurality of second protrusions 8 are installed on the embossing roller 52 along the axial direction of the embossing roller 52, and the plurality of second protrusions 8 are distributed at intervals along the radial direction of the embossing roller 52.

[0038] The staff passes the base layer 1 or the surface layer 3 through the same group of pressure rollers 51 and embossing rollers 52. As the base layer 1 or the surface layer 3 moves, the base layer 1 or the surface layer 3 drives the embossing rollers 52 and the pressure rollers 51 to rotate through friction, and the embossing rollers 52 and the pressure rollers 51 squeeze the base layer 1 or the surface layer 3. The multiple first protrusions 53 installed along the radial direction of the embossing roller 52 can continuously extrude the first embedded groove 11 with an opening size smaller than the internal opening size on the base layer 1 along the conveying direction of the base layer 1 or the surface layer 3, or extrude the second embedded groove 31 with an opening size smaller than the internal opening size on the surface layer 3, thereby improving the convenience of processing the first embedded groove 11 on the base layer 1 and processing the second embedded groove 31 on the surface layer 3; at the same time, the second protrusions 8 on the embossing roller 52 squeeze the base layer 1 or the surface layer 3. The interlayer 2 and the surface layer 3 are pressed together by the pressing means, and a plurality of grooves are pressed out along the width direction of the base layer 1 or the surface layer 3 at intervals along the conveying direction of the base layer 1 or the surface layer 3. When the base layer 1, the interlayer 2 and the surface layer 3 are subsequently hot-pressed, the interlayer 2 and the adhesive can be embedded in the grooves pressed out by the second protrusions 8, and the connection between the interlayer 2 and the base layer 1 or the surface layer 3 is positioned in another direction. In addition, the grooves can also connect the plurality of first embedded grooves 11 or the second embedded grooves 31, so that the plurality of first embedded grooves 11 and the grooves pressed out by the second protrusions 8 are connected to form a whole, and the plurality of second embedded grooves 31 and the grooves pressed out by the second protrusions 8 are connected to form a whole. Subsequently, the interlayer 2 and the adhesive can be evenly distributed from the grooves pressed out by the second protrusions 8 to the plurality of first grooves or the second grooves under the extrusion action, thereby improving the uniformity of the interlayer 2 and the adhesive embedded in the base layer 1 or the surface layer 3, and effectively improving the stability when the base layer 1 or the surface layer 3 is subsequently bonded to the interlayer 2.

[0039] Reference Figure 3 , Figure 4A driving gear 9 is coaxially mounted on the pressure roller 51, and a driven gear 10 is coaxially mounted on the embossing roller 52. The driving gear 9 and the driven gear 10 are meshed, and the driving gear 9 and the driven gear 10 have the same diameter and number of teeth. When the pressure roller 51 rotates, it drives the driving gear 9 to rotate, and when the embossing roller 52 rotates, it drives the driven gear 10 to rotate. Through the meshing action of the driving gear 9 and the driven gear 10, the pressure roller 51 and the embossing roller 52 rotate synchronously, thereby improving the synchronization of the rotation of the pressure roller 51 and the embossing roller 52, thereby reducing the possibility of relative rotation between the pressure roller 51 and the embossing roller 52 when the friction force of the base layer 1 or the surface layer 3 drives the pressure roller 51 and the embossing roller 52 to rotate, thereby reducing the possibility of the second protrusion 8 continuously squeezing the base layer 1 or the surface layer 3 along the length direction of the base layer 1 or the surface layer 3, thereby reducing the possibility of pressing out an excessively wide groove on the base layer 1 or the surface layer 3, thereby ensuring the deformation space on both sides of the groove formed when the second protrusion 8 squeezes the base layer 1 or the surface layer 3, thereby reducing the possibility of the base layer 1 or the surface layer 3 being damaged due to the continuous squeezing of the second protrusion 8.

[0040] Reference Figure 2 , Figure 3 The glue coating mechanism 6 includes a glue coating roller 61 and a glue supply assembly 62. At least two glue coating rollers 61 are rotatably mounted on the frame 41. The two glue coating rollers 61 are respectively used to abut the base layer 1 and the side of the surface layer 3 close to the interlayer 2. The glue coating roller 61 is hollow inside. The glue coating roller 61 is provided with a plurality of glue outlet holes connected to the inside of the glue coating roller 61. The glue supply assembly 62 is mounted on the frame 41. The glue supply assembly 62 is used to transport the adhesive to the inside of the glue coating roller 61. In this embodiment, the glue supply assembly 62 includes a glue storage box 62. 1. Rotary joint and glue pushing cylinder 622. The glue storage box 621 is installed on the frame 41. An electric heating wire is installed in the glue storage box 621. The rotary joint is coaxially and connectedly installed on the glue coating roller 61. The glue storage box 621 is connected to the rotary joint through a corrugated hose. The glue pushing cylinder 622 is installed on the frame 41. The piston rod of the glue pushing cylinder 622 extends into the glue storage box 621. A piston is installed at one end of the piston rod of the glue pushing cylinder 622 located in the glue storage box 621. The piston is circumferentially abutted against the inner wall of the glue storage box 621.

[0041] The staff deposits the adhesive into the glue storage box 621, and winds the side of the base layer 1 or the surface layer 3 close to the interlayer 2 onto the glue coating roller 61. The glue storage box 621 heats the adhesive through the electric heating wire, and starts the glue pushing cylinder 622. The piston rod of the glue pushing cylinder 622 extends to push the piston, thereby pushing the adhesive in the glue storage box 621 into the glue coating roller 61 through the corrugated hose and the rotary joint. The adhesive is squeezed out from the multiple glue outlet holes on the glue coating roller 61 under the extrusion effect. As the base layer 1 or the surface layer 3 moves, the adhesive can be continuously applied to the side of the base layer 1 or the surface layer 3 close to the interlayer 2, so that the base layer 1 or the surface layer 3 close to the interlayer 2 can be efficiently coated with glue quickly and conveniently.

[0042] Reference Figure 2 , Figure 3 The hot pressing mechanism 7 includes a hot pressing roller 71 and a heating assembly 72. Two hot pressing rollers 71 are rotatably installed on the frame 41. A gap is left between the two hot pressing rollers 71 for the base layer 1, the interlayer 2 and the surface layer 3 to pass through and extrude the base layer 1, the interlayer 2 and the surface layer 3. The heating assembly 72 is installed on the frame 41. The heating assembly 72 is used to heat the hot pressing roller 71. The heating assembly 72 includes a hot water tank 721, a hot water pump 722, a hot water pipe 723 and a branch pipe 724. The hot water tank 721 is installed on the frame 41. The hot water tank 721 is used to heat water. In this embodiment, the hot water tank 721 is an electric hot water tank 721, and the hot water pump 722 is installed on the frame 41. The water inlet end of 722 is connected to the hot water tank 721, and the water outlet end of the hot water pump 722 is connected to the hot water pipe 723 and the branch pipe 724. In the present embodiment, rotary joints are coaxially installed at both ends of the hot pressing roller 71. The hot water pipe 723 passes through the hot pressing roller 71 from the rotary joint, and is connected to the hot water tank 721 after passing through the rotary joint at the other end of the hot pressing roller 71. The branch pipe 724 is connected to the glue coating roller 61 from the rotary joint on the glue coating roller 61, passes through the inside of the glue coating roller 61, and is connected to the hot water tank 721 after passing through the rotary joint at the other end of the glue coating roller 61. In the present embodiment, valves are installed on the hot water pipe 723 and the branch pipe 724 to facilitate the staff to control the water supply.

[0043] The staff arranges the base layer 1, the interlayer 2 and the surface layer 3 from bottom to top in sequence and overlaps them between the two hot pressing rollers 71. After the hot water tank 721 heats the water inside, the hot water pump 722 pumps the water in the hot water tank 721 into the hot water pipe 723. The hot water flows into the hot pressing roller 71 from the hot water pipe 723 to continuously heat the hot pressing roller 71. The hot pressing roller 71 then heats the base layer 1 and the surface layer 3. Then the water in the hot water pipe 723 flows into the hot water tank 721 and is heated again for use. As the winding roller 43 pulls the base layer 1, the interlayer 2 and the surface layer 3, the two hot pressing rollers 71 rotate to squeeze the base layer 1, the interlayer 2 and the surface layer 3, and the base layer 1, the interlayer 2 and the surface layer 3 are pressed together to form a The multi-layer composite sofa fabric can improve the tightness of the bonding between the base layer 1, the interlayer 2 and the surface layer 3 by heating; the hot water pump 722 can also pump the hot water in the hot water tank 721 into the branch pipe 724, and the hot water exchanges heat with the adhesive in the glue coating roller 61 in the branch pipe 724, so as to heat the adhesive in the glue coating roller 61 and the glue coating roller 61, thereby improving the fluidity of the adhesive in the glue coating roller 61, facilitating the adhesive in the glue coating roller 61 to flow out from the glue outlet hole and be evenly applied to the base layer 1 or the surface layer 3, and reducing the probability of the glue outlet hole on the glue coating roller 61 being blocked, thereby ensuring the effect of gluing the base layer 1 and the surface layer 3, and can also heat and melt the adhesive condensed on the glue coating roller 61 when the equipment is cold started.

[0044] The implementation principle of a composite sofa fabric and its production process in an embodiment of the present application is as follows: a staff member respectively sets the rolled base layer 1, interlayer 2 and surface layer 3 on three feeding rollers 42 from bottom to top, then pulls the base layer 1 and surface layer 3 to pass through a pressure roller 51 and an embossing roller 52, and winds them onto a glue coating roller 61, then stacks the base layer 1, interlayer 2 and surface layer 3 from bottom to top in sequence and passes them between two hot pressing rollers 71, and then sets the pressed sofa fabric on a winding roller 43, and a driving component 44 drives the winding roller 43 to rotate, so as to pull the base layer 1, interlayer 2 and surface layer 3 out, and a first protrusion 53 on the embossing roller 52 presses out a first embedded groove 11 with an opening size smaller than the internal opening size on the base layer 1, and presses out a second embedded groove 31 with an opening size smaller than the internal opening size on the surface layer 3, and at the same time, a second protrusion 8 on the embossing roller 52 After a groove is pressed out on the base layer 1 and the surface layer 3 and the adhesive on the glue coating roller 61 is applied to the base layer 1 and the surface layer 3, two hot pressing rollers 71 perform hot pressing on the base layer 1, the interlayer 2 and the surface layer 3, so that the interlayer 2 and the adhesive are embedded in the grooves pressed out by the first groove body, the second groove body and the second protrusion 8. The smaller openings of the first groove body and the second groove body limit the interlayer 2, so that the base layer 1 and the surface layer 3 can be firmly attached to both sides of the interlayer 2, reducing the possibility of delamination of the base layer 1, the interlayer 2 and the surface layer 3, and improving the problem that the composite sofa cover is easy to delaminate and affects the service life. In addition, the embossing and gluing of the base layer 1 and the surface layer 3, as well as the hot pressing of the base layer 1, the interlayer 2 and the surface layer 3 are successively carried out during the movement of the base layer 1, the interlayer 2 and the surface layer 3, so that the composite sofa cover can be continuously produced and processed, thereby improving the production efficiency of the composite sofa cover.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A composite sofa fabric, characterized in that: The invention comprises a base layer (1), an interlayer (2) and a surface layer (3), wherein the base layer (1) is used to be attached to a sofa, a first embedding groove (11) is provided on a side of the base layer (1) facing away from the sofa, the interlayer (2) is bonded and arranged on a side of the base layer (1) facing away from the sofa, the interlayer (2) is made of a porous elastic material, the surface layer (3) is bonded and arranged on a side of the interlayer (2) facing away from the base layer (1), a second embedding groove (31) is provided on a side of the surface layer (3) close to the interlayer (2), and the surface layer (3) is made of a wear-resistant material.

2. A composite sofa fabric according to claim 1, characterized in that: The opening size of the first embedding groove (11) is smaller than the internal opening size, and the opening size of the second embedding groove (31) is smaller than the internal opening size.

3. A production process for a composite sofa fabric as claimed in any one of claims 1 to 2, characterized in that: The following steps are involved: S1: loading the base layer (1), the interlayer (2) and the surface layer (3) through a loading mechanism (4); S2: forming a first embedding groove (11) on the base layer (1) and forming a second embedding groove (31) on the surface layer (3) by means of an embossing mechanism (5); S3: applying the adhesive to the base layer (1) and the side of the surface layer (3) close to the interlayer (2) by means of a glue coating mechanism (6); S4: The base layer (1), the interlayer (2) and the surface layer (3) are hot-pressed by a hot-pressing mechanism (7).

4. The composite sofa fabric production process according to claim 3, characterized in that: The feeding mechanism (4) comprises a frame (41), a feeding roller (42), a winding roller (43) and a driving assembly (44); at least three feeding rollers (42) are rotatably arranged on the frame (41); the base layer (1), the interlayer (2) and the surface layer (3) are respectively wound around different feeding rollers (42); the winding roller (43) is rotatably arranged on the frame (41) and is used to wind up the sofa fabric formed by hot pressing; and the driving assembly (44) is arranged on the frame (41) and is used to drive the winding roller (43) to rotate.

5. The composite sofa fabric production process according to claim 4, characterized in that: The embossing mechanism (5) comprises a pressure roller (51), an embossing roller (52) and a first protrusion (53); the pressure roller (51) is rotatably arranged on a frame (41); the embossing roller (52) is rotatably arranged on the frame (41); the base layer (1) or the surface layer (3) is inserted between the pressure roller (51) and the embossing roller (52); a plurality of the first protrusions (53) are arranged on the embossing roller (52) along the radial direction of the embossing roller (52); the plurality of the first protrusions (53) are spaced apart along the axial direction of the embossing roller (52); and the cross-sectional size of the first protrusion (53) gradually decreases from an end away from the embossing roller (52) to an end close to the embossing roller (52).

6. The composite sofa fabric production process according to claim 5, characterized in that: A plurality of second protrusions (8) are arranged on the embossing roller (52) along the axial direction of the embossing roller (52), and the plurality of second protrusions (8) are distributed at intervals along the radial direction of the embossing roller (52).

7. The composite sofa fabric production process according to claim 5, characterized in that: A driving gear (9) is coaxially arranged on the pressure roller (51), and a driven gear (10) is arranged on the embossing roller (52), and the driving gear (9) is meshed with the driven gear (10).

8. The composite sofa fabric production process according to claim 4, characterized in that: The glue coating mechanism (6) comprises a glue coating roller (61) and a glue supply assembly (62). At least two glue coating rollers (61) are rotatably arranged on a frame (41). The base layer (1) and the surface layer (3) are respectively wound around different glue coating rollers (61) on one side close to the interlayer (2). The glue coating roller (61) is hollow inside. The glue coating roller (61) is provided with a plurality of glue outlet holes for the adhesive to flow out. The glue supply assembly (62) is arranged on the frame (41) and is used to transport the adhesive to the glue coating roller (61).

9. The composite sofa fabric production process according to claim 8, characterized in that: The hot pressing mechanism (7) comprises a hot pressing roller (71) and a heating component (72); two hot pressing rollers (71) are arranged on the frame (41); the base layer (1), the interlayer (2) and the surface layer (3) are arranged between the two hot pressing rollers (71); and the heating component (72) is arranged on the hot pressing roller (71) and is used to heat the hot pressing roller (71).

10. A composite sofa fabric production process according to claim 9, characterized in that: The heating assembly (72) comprises a hot water tank (721), a hot water pump (722), a hot water pipe (723) and a branch pipe (724); the hot water tank (721) is arranged on the frame (41) and is used to heat water; the hot water pump (722) is arranged in communication with the hot water tank (721); the hot water pipe (723) is wound around the inner wall of the heating roller; two ends of the hot water pipe (723) are respectively in communication with the hot water pump (722) and the hot water tank (721); the branch pipe (724) is arranged in communication with the hot water pump (722); the branch pipe (724) is wound around the inner wall of the glue coating roller (61) and is in communication with the hot water tank (721).

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