Glass fiber reinforced plastic continuous production line and production method

Abstract

The invention relates to a glass fiber reinforced plastic continuous production line and a production method, and relates to the field of glass fiber reinforced plastic production equipment.The glass fiber reinforced plastic continuous production line comprises a bottom film feeding and gluing unit, a lower surface mat laying and gluing mechanism, an upper-layer fiber laying and infiltrating mechanism, a glue supplementing and laminating unit, a heating and curing unit and a trimming and cutting unit; the bottom film feeding and gluing unit is used for guiding a bottom film and blade-coating a layer of gel coat on the bottom film, the lower surfacing mat laying and gluing mechanism is used for laying a lower surfacing mat on the gel coat and coating resin glue on the lower surfacing mat, the upper-layer fiber laying and infiltrating mechanism is used for laying a main fiber layer and an upper surfacing mat on the lower surfacing mat and infiltrating the resin glue, and the lower-layer fiber laying and infiltrating mechanism is used for laying the main fiber layer and the upper surfacing mat on the upper-layer fiber laying and infiltrating the resin glue. The glue supplementing and laminating unit supplements resin glue on the upper surfacing mat and then paves a top film, the top film is output after being heated and cured by the heating and curing unit and trimmed and cut by the trimming and cutting unit, and the quality of glass fiber reinforced plastic products can be guaranteed. The invention further discloses a glass fiber reinforced plastic continuous production method.

Description

Technical Field

[0001] The present application relates to a glass fiber reinforced plastic production equipment, and more particularly to a glass fiber reinforced plastic continuous production line. The present application also relates to a glass fiber reinforced plastic continuous production method. Background Art

[0002] Glass fiber reinforced plastic (FRP), also known as GFRP, refers to a reinforced plastic that uses glass fiber to reinforce an unsaturated polyester, epoxy resin and phenolic resin matrix, and uses glass fiber or its products as reinforcement materials. It is called glass fiber reinforced plastic, commonly known as glass fiber reinforced plastic. Glass fiber reinforced plastic has the advantages of light weight, high hardness, non-conductive, stable performance, high mechanical strength, less recycling, corrosion resistance, etc. It can replace steel to manufacture machine parts and automobile and ship shells, etc., and has been widely used in production and life fields.

[0003] FRP is usually made by laying a surface felt on the base film, adding a set amount of resin glue on the surface felt, and then laying several layers of glass felt, so that the resin glue infiltrates the surface felt and the glass felt, and then covering the glass felt with a layer of film, heating to solidify the resin glue to form the FRP material, and finally trimming and cutting the FRP material to obtain the FRP finished product. This production method can form an assembly line for continuous production, and has the advantages of large output and high production efficiency.

[0004] In the existing FRP continuous production line, when adding resin glue to the surface felt, a set flow rate of resin glue is usually added according to the glass fiber content in the FRP. Once the fiber arrangement on the surface felt or in the glass felt is uneven, or the flow of the resin glue is uneven, it is easy to cause uneven thickness of the FRP material after pressing and infiltration, resulting in uneven surface of the FRP material, glass fibers exposed on the surface of the FRP material, or glass fiber texture on the surface of the FRP material, affecting the product quality of the FRP. Summary of the invention

[0005] In order to ensure the quality of FRP products, the present application provides a FRP continuous production line and production method.

[0006] The FRP continuous production line provided in this application adopts the following technical solutions: A continuous production line for glass fiber reinforced plastics comprises a base film feeding and gluing unit, a gel coat curing unit, a fiber layer laying and gluing unit, a glue repairing and coating unit, a heating and curing unit and a trimming and cutting unit which are arranged in sequence; the base film feeding and gluing unit can introduce a base film and apply a layer of gel coat on the base film, the gel coat curing unit can heat the gel coat so that the gel coat is in a semi-cured state; the fiber layer laying and gluing unit can lay a fiber layer on the gel coat and add resin glue, and allow the resin glue to infiltrate the fiber layer, the glue repairing and coating unit can lay a top film on the fiber layer and add resin glue between the fiber layer and the top film to form a composite material layer of a set thickness, and after heating and curing by the heating and curing unit and trimming and cutting by the trimming and cutting unit, a finished glass fiber reinforced plastic is formed.

[0007] By adopting the above technical scheme, the base film is introduced by using the base film feeding and coating unit, and a layer of gel coat is scraped on the base film, so that the fibers in the fiber layer laid on the base film can be restricted above the gel coat to form the lower surface of the FRP, which is beneficial to prevent the appearance of material fibers on the lower surface of the FRP and improve the flatness of the lower surface of the FRP; the glue filling and coating unit can be used to supplement resin glue between the fiber layer and the top film, and a resin layer can be formed above the fiber layer, covering the upper surface of the fiber layer to form the upper surface of the FRP, preventing pits or material fibers from appearing on the upper surface of the FRP and improving the flatness of the upper surface of the FRP; the fiber layer laying and coating unit is used to lay the fiber layer and add resin glue on the gel coat of the base film, so that the resin glue is infiltrated into the fiber layer, and the main structure of the FRP is formed after curing, and the gel coat and the supplemented resin glue are symmetrically covered on the upper and lower sides of the FRP main structure, effectively improving the surface quality of the FRP material.

[0008] In a specific possible implementation scheme, the fiber layer laying and gluing unit includes a lower surface felt laying mechanism, a lower surface felt gluing mechanism and an upper layer fiber laying and impregnation mechanism; the lower surface felt laying mechanism and the lower surface felt gluing mechanism can first lay the lower surface felt on the gel coat, and then add a set thickness of resin glue on the lower surface felt, or first add a set thickness of resin glue on the gel coat, and then lay the lower surface felt on the resin glue; the upper layer fiber laying and impregnation mechanism can lay the main fiber layer and the upper surface felt on top of the lower surface felt, and allow the resin glue to infiltrate the main fiber layer and the surface felt.

[0009] By adopting the above technical scheme, the lower surface felt is laid on the top of the base film gel coat and the resin glue of a set thickness is added by utilizing the lower surface felt laying mechanism and the lower surface felt coating mechanism, thereby ensuring uniform distribution of the resin glue on the lower surface felt, which is beneficial to sufficient infiltration of the resin glue in the surface felt and the main fiber layer, thereby ensuring the flatness of the surface of the FRP material; the main fiber layer can be laid on the top of the lower surface felt by utilizing the upper fiber laying and infiltration mechanism, and the upper surface felt can be laid on the top of the main fiber layer, thereby forming a structure in which the upper surface felt and the lower surface felt are symmetrically arranged on both sides of the main fiber layer, thereby ensuring the symmetry of the reinforcing fiber structure in the FRP material and reducing the bending deformation of the FRP material.

[0010] In a specific feasible implementation scheme, the base film feeding and gluing unit comprises a base film feeding mechanism and a gel coat scraping mechanism, the base film feeding mechanism is capable of flattening the base film and conveying it backward, the gel coat scraping mechanism comprises a scraping bracket, a gel coat scraping device, a gel coat scraping flipping device, a side glue baffle plate and a glue injection device, the scraping bracket is arranged behind the base film feeding mechanism, and comprises a scraping platform laterally arranged below the base film, two bracket side frames arranged on both sides of the flat scraping platform and a transverse support rod arranged between the front ends of the two bracket side frames, the gel coat scraping device is arranged between the rear ends of the two bracket side frames and is capable of adjusting the distance from the scraping platform, two side glue baffle plates are provided, and the two side glue baffle plates are mounted on the transverse support rod, located on both sides of the base film, and in contact with the base film, the glue injection device is arranged above the scraping bracket and is capable of adding gel coat to the base film between the two side glue baffle plates.

[0011] By adopting the above technical scheme, by adjusting the distance between the gel coat scraping device and the coating platform, the thickness of the gel coat covered on the base film can be easily adjusted, and the amount of gel coat on the base film can be controlled, which is beneficial to forming a gel coat layer of set thickness under the FRP material; by using two side rubber baffles installed on the transverse support rod, the width range of the gel coat added to the base film can be limited, forming a production benchmark for FRP products of different widths, and helping to improve the uniformity of the gel coat formed by scraping on the base film; by using the gel coat scraping flipping device, the gel coat scraping device can be easily lifted, making it more convenient to clean the gel coat scraping device, and also helping to adjust the distance between the gel coat scraping device and the coating platform.

[0012] In a specific feasible implementation scheme, the gel coat scraping device includes a gel coat scraper, a gel coat gantry support and a middle support screw, the gel coat gantry support is fixed above the two ends of the gel coat scraper, and the middle support screw is arranged in the middle of the gel coat scraper, between the gel coat scraper and the gel coat gantry support; the gel coat scraping flipping device includes a rocker, a rocker gear, a first intermediate gear, a second intermediate gear, a flipping rod gear and a flipping rod, the rocker is rotatably connected to the side frame of the bracket on one side, the rocker gear is fixed on the rotating shaft of the rocker, the first intermediate gear is rotatably connected to the side frame of the bracket and meshes with the rocker gear, the second intermediate gear is fixed on the first intermediate gear and meshes with the flipping rod gear, the flipping rod gear is fixed on the flipping rod, the flipping rod is rotatably connected to the side frame of the bracket, and the gel coat scraper is fixed on the flipping rod.

[0013] By adopting the above technical scheme, the middle part of the soft material gel coat scraper can be supported by using the rubber plate gantry support and the middle support screw to prevent the middle section of the gel coat scraper from sagging, and the support height of the middle part of the gel coat scraper can be adjusted to ensure the flatness of the gel coat scraper; using the rocker gear-driven with the flip rod, the flip rod can be conveniently driven to rotate, thereby driving the gel coat scraper to flip, effectively reducing the driving force for driving the gel coat scraper to flip, and reducing the labor intensity of driving the gel coat scraper to flip.

[0014] In a specific feasible implementation scheme, the glue filling and coating unit includes a top film unfolding mechanism, a top film laying mechanism and a glue injection device arranged at the front side of the top film laying mechanism, the top film unfolding mechanism includes an unfolding mechanism mounting frame, a top film fixed shaft, a top film shaft mounting seat, a top film guide roller, a guide roller mounting seat and a top film bending roller, the unfolding mechanism mounting frame spans the bottom film and is arranged on both sides of the bottom film conveying direction, the top film shaft mounting seat is arranged on the unfolding mechanism mounting frame and can adjust the front, back, left and right positions of the top film shaft mounting seat, the two ends of the top film fixed shaft are rotatably arranged on the top film shaft mounting seat, the guide roller mounting seat is arranged on the unfolding mechanism mounting frame and can adjust the front and back positions of the guide roller mounting seat, the two ends of the top film guide roller are rotatably arranged on the guide roller mounting seat, the reel of the top film is fixed on the top film fixed shaft, and the top film The film is conveyed to the top film laying mechanism by bypassing the top film guide roller and the top film bending roller; the top film laying mechanism includes a film laying mechanism mounting frame, a film covering support roller, a top film laying roller, a laying roller mounting arm, a laying roller pressure block and a FRP thickness setting device, the film laying mechanism mounting frame spans the bottom film and is arranged on both sides of the bottom film conveying direction, the laying film support roller crosses the bottom of the bottom film and is rotatably connected to the film laying mechanism mounting frame, one end of the laying roller mounting arm is rotatably connected to the film laying mechanism mounting frame, and the other end is fixedly connected to the laying roller pressure block, the top film laying roller is rotatably connected to the laying roller mounting arm, and the FRP thickness setting device is arranged between the laying roller mounting arm and the film laying mechanism mounting frame to be able to adjust the gap size between the laying film support roller and the top film laying roller; the glue injection device can add resin glue between the fiber layer and the top film.

[0015] By adopting the above technical scheme, the top film shaft mounting seat capable of adjusting the front, rear, left and right positions on the unfolding mechanism mounting frame can be used to fine-tune the unfolding position and unfolding angle of the top film, which is beneficial to controlling the tension degree on the left and right sides of the top film and the covering position of the top film; the guide roller mounting seat capable of adjusting the front and rear positions on the unfolding mechanism mounting frame can be used to adjust the tension degree on the left and right sides of the top film, which is beneficial to controlling the left and right deviation during the movement of the top film; the top film bending roller is beneficial to the unfolding and laying of the top film; the FRP thickness setting device can be used to adjust the gap between the film covering support roller and the top film covering roller, thereby controlling the thickness of the FRP material; the setting of the covering roller mounting arm and the covering roller pressure block can form a greater pressure on the top film covering roller, so as to push and evenly distribute the resin glue added between the fiber layer and the top film, which is beneficial to control the thickness of the FRP material within the set value.

[0016] In a specific feasible implementation scheme, the FRP thickness determination device includes a thickness determination motor, a worm gear lift, a rod end lifting block, a top block shaft and a thickness determination top block. The thickness determination motor is fixed on the worm gear lift and is connected to the worm drive of the worm gear lift. The worm gear lift is fixed on the film laying mechanism mounting frame. The rod end lifting block is fixed to the end of the screw of the worm gear lift. The top block shaft is fixedly connected to the thickness determination top block and is rotatably connected to the rod end lifting block. The thickness determination top block forms a support for the covering roller mounting arm.

[0017] By adopting the above technical scheme, the rod-end lifting block fixed at the end of the screw of the worm gear screw lift can be lifted and lowered together with the screw of the worm gear screw lift under the drive of the thickness setting motor, so that the height of the rod-end lifting block can be automatically adjusted through the electric control signal; by using the top block shaft fixedly connected to the thickness setting top block and rotatably connected to the rod-end lifting block, the rotation angle of the paving roller mounting arm can be adjusted by lifting and lowering the thickness setting top block, and at the same time, the good fit between the thickness setting top block and the bottom surface of the paving roller mounting arm can be ensured through the rotation of the top block shaft.

[0018] In a specific feasible implementation scheme, the glue injection device includes a glue injection device mounting frame, a glue injection seat, a transverse driving member, a glue injection barrel, a glue injection motor, a glue injection wheel, a glue inlet hose, a curing agent hose and a glue outlet pipe. The glue injection device mounting frame is laterally arranged above the base film, the glue injection seat is slidably arranged on the glue injection device mounting frame, and can move laterally under the drive of the transverse driving member, the glue injection barrel and the glue injection motor are both fixed on the glue injection seat, the glue injection wheel is fixed on the output shaft of the glue injection motor and is located in the glue injection barrel, the glue inlet hose and the curing agent hose are respectively connected to the lower part of the glue injection barrel, and the glue outlet pipe is arranged on the upper part of the glue injection barrel.

[0019] By adopting the above technical scheme, by utilizing the sliding setting of the glue injection seat on the glue injection device mounting frame, the glue injection device can be driven to move laterally through the lateral driving member, which is beneficial for the glue injection device to evenly add resin glue within a set width range; by utilizing the glue injection wheel arranged on the output shaft of the glue injection motor, the resin glue can be conveniently driven to be output from the glue outlet pipe on the upper part of the glue injection barrel, and it is beneficial to control the amount of resin glue added.

[0020] In a specific possible implementation scheme, the upper fiber laying and impregnation mechanism includes a main fiber layer covering device, an upper surface felt covering device, an impregnation mechanism mounting frame, an impregnation roller, a first impregnation pressure roller and a second impregnation pressure roller. The main fiber layer covering device is provided in plurality, and each of the main fiber layer covering devices can lay a main fiber layer above the lower surface felt. The upper surface felt covering device is provided at the rear end of the main fiber layer covering device and can lay a layer of the upper surface felt above the main fiber layer. The impregnation mechanism mounting frame is provided at the rear end of the upper surface felt covering device and on both sides of the bottom film. The impregnation roller passes under the bottom film and has its two ends rotatably connected to the impregnation mechanism mounting frame. The first impregnation pressure roller and the second impregnation pressure roller are provided above the upper surface felt and are respectively provided on both sides of the impregnation roller. Both ends are rotatably connected to the impregnation mechanism mounting frame and can adjust their installation heights on the impregnation mechanism mounting frame. The impregnation roller, the first impregnation pressure roller and the second impregnation pressure roller each use one of a bare roller, an annular roller and a strip roller.

[0021] By adopting the above technical scheme, multiple main fiber layers and an upper surface felt can be laid layer by layer using multiple main fiber layers and an upper surface felt, which is beneficial to ensure that the surface felt and the main fiber layer are laid neatly and evenly; by using a bare roller, an annular roller or a strip roller as an impregnation roller, a first impregnation roller and a second impregnation roller, the resin glue can be fully squeezed in multiple directions, so that the resin glue is repeatedly impregnated in the main fiber layer and the surface felt, and it is beneficial to discharge the bubbles retained between the fibers of the main fiber layer and the surface felt, forming a solid structure with uniform texture; by adjusting the installation height of the first impregnation roller and the second impregnation roller on the impregnation mechanism mounting frame, the extrusion force of the resin glue in the surface felt and the main fiber layer can be adjusted, which is beneficial to ensure that the resin glue is fully and evenly impregnated in the surface felt and the main fiber layer.

[0022] In a specific possible implementation scheme, the trimming and cutting unit includes a trimming and longitudinal cutting machine, a dust removal conveyor and a cutting machine. The trimming and longitudinal cutting machine includes a trimming bracket, a trimming mechanism, a longitudinal cutting mechanism, a trimming roller, an electrostatic processor and a dust removal air nozzle. The trimming bracket includes a trimming side bracket arranged on both sides of the base film and a side connecting frame and a top connecting frame connected between the trimming side brackets on both sides. The trimming mechanism is slidably arranged on the side connecting frame, and the longitudinal cutting mechanism is slidably arranged on the top connecting frame. Both ends of the trimming roller are rotatably connected to the rear end of the trimming side bracket and supported under the base film. The electrostatic processor is arranged under the base film and at the rear side of the trimming roller. The dust removal air nozzle is arranged above the base film and corresponds to the electrostatic processor; the dust removal conveyor is arranged at the rear side of the trimming and longitudinal cutting machine, and the cutting machine is arranged at the rear side of the dust removal conveyor.

[0023] By adopting the above technical scheme, the trimming mechanism can be used to cut off the edges on both sides of the FRP material to form FRP materials with set width and neat edges, which are used to make FRP product coils, or use a cutting machine to cut FRP sheet products; the longitudinal shearing mechanism can be used to cut FRP materials with larger widths into several FRP materials with smaller widths, which are used to make FRP product coils with smaller widths, or use a cutting machine to cut FRP sheet products with smaller widths; the sliding setting of the trimming mechanism on the side connecting frame can conveniently adjust the width of the FRP material formed after trimming, and the sliding setting of several longitudinal shearing mechanisms on the top connecting frame can be used to divide FRP strips of different quantities and widths; the electrostatic processor can remove static electricity on the FRP material to prevent static electricity from adsorbing dust on the glass window material, so that the dust removal nozzle can remove cutting powder and dust on the FRP material.

[0024] In a specific possible implementation scheme, the trimming mechanism includes a trimming mechanism sliding seat, a transverse driving screw, a lifting mounting seat, a lifting driving screw, a trimming mounting frame, a dust-free cutter, a trimming pad wheel and a trimming driving motor. The trimming mechanism sliding seat is slidably mounted between the bottom connecting frame and the top connecting frame, and can move laterally on the bottom connecting frame and the top connecting frame under the drive of the transverse driving screw. The lifting mounting seat is slidably mounted on the trimming mechanism sliding seat and can slide up and down under the drive of the lifting driving screw. The trimming mounting frame is mounted on the lifting mounting seat and can adjust the rotation angle on the lifting mounting seat. The dust-free cutter and the trimming pad wheel are rotatably connected to the trimming mechanism sliding seat. The edge mounting frame makes the dust-free cutter and the trimming pad wheel respectively arranged opposite to each other on the upper and lower sides of the base film, and can rotate in opposite directions under the drive of the trimming drive motor; the longitudinal cutting mechanism includes a cutting sliding seat, a cutting sliding screw, a cutting mounting frame, a lifting hydraulic cylinder, a cutting drive motor and a cutting blade, the cutting sliding seat is slidably mounted on the top connecting frame, and can move laterally under the drive of the cutting sliding screw, one end of the cutting mounting frame is rotatably connected to the cutting sliding seat, the lifting hydraulic cylinder is arranged between the other end of the cutting mounting frame and the cutting sliding seat, the cutting drive motor is fixed below the cutting mounting frame, and the cutting blade is fixed on the output shaft of the cutting drive motor.

[0025] By adopting the above technical scheme, by utilizing the settings of the trimming mounting frame, the lifting mounting seat and the trimming mechanism sliding seat, the dust-free cutter can be adjusted arbitrarily in the horizontal vertical plane, and the rotation angle of the dust-free cutter in the vertical plane can be adjusted, so that FRP materials of different specifications can be easily trimmed and cut to form FRP products of different widths and different edge line requirements; by utilizing the settings of the splitting sliding seat, the splitting mounting frame and the lifting hydraulic cylinder, the lateral position of the splitting cutter relative to the FRP material can be easily adjusted, so as to cut FRP strips of different widths, and it can freely control whether to cut the FRP material to meet the different width requirements of FRP products.

[0026] The continuous production method of glass fiber reinforced plastics provided in this application adopts the following technical scheme: A continuous production method for glass fiber reinforced plastics comprises the following steps: S1, laying a base film: spreading the base film flat and moving it backward along the production line; S2, applying a gel coat: applying a resin glue on the base film and heating and curing it to form a semi-cured gel coat; S3, laying a lower surface felt and adding glue: laying a lower surface felt and a resin glue of a set thickness on the gel coat in sequence; S4, laying a main fiber layer and an upper surface felt: laying a main fiber layer and an upper surface felt layer by layer on the lower surface felt according to design requirements; S5, resin glue infiltration: Press the upper surface felt so that the resin glue fully infiltrates the lower surface felt, the main fiber layer and the upper surface felt; S6, glue filling and top film laying: add resin glue on the upper surface felt, unfold the top film and lay it on the upper surface felt, and press it to a set thickness; S7, heating and curing: heat the composite material after laying the top film to cure the resin glue to form a fiberglass material; S8, trimming and cutting: cut off the edges of the fiberglass material on both sides according to the design requirements, and cut it into a set length to obtain a fiberglass finished product.

[0027] By adopting the above technical scheme, the upper surface felt laid on the main fiber layer can form a symmetrical fiber structure with the lower surface felt laid under the main fiber layer, so that the fibers in the FRP product are symmetrically distributed, preventing the FRP product from warping due to asymmetric shrinkage during curing of the resin glue, which is beneficial to improving the flatness of the FRP product; by adding resin glue between the upper surface felt and the top film, not only can the fiber filaments and uneven pits on the surface of the upper surface felt be covered, but also a layer of resin glue can be formed on the outside of the upper surface felt, forming a symmetrical structure with the gel coat layer on the outside of the lower surface felt.

[0028] In summary, the present application includes at least one of the following beneficial technical effects: 1. The lower surface felt laying mechanism and the lower surface felt gluing mechanism can be used to lay the lower surface felt and add a set thickness of resin glue on the gel coat of the base film in sequence, which can ensure that the resin glue is evenly distributed on the lower surface felt. Compared with the traditional method of adding a set flow of resin glue, it can better ensure that different parts of the surface felt and the main fiber layer are fully infiltrated with the resin glue, thereby improving the surface flatness of the FRP material after infiltration; 2. By using the upper surface felt laid on the main fiber layer, a symmetrical structure consisting of the upper surface felt and the lower surface felt can be formed on the upper and lower sides of the main fiber layer, so that the fibers on both sides of the FRP material are evenly distributed. When the resin glue in the FRP material solidifies and shrinks, the two sides of the FRP material can shrink symmetrically, reducing the bending deformation of the FRP material; 3. The glue filling and film covering unit can be used to supplement the resin glue between the upper surface felt and the top film, forming a layer of resin above the upper surface felt, covering the outer side of the upper surface felt fiber, preventing the fiber material from being exposed, filling the surface pits formed by the shrinkage of the resin glue between the fiber materials, and forming a symmetrical structure with the gel coat on the outer side of the lower surface felt, thereby improving the surface quality and mechanical properties of the FRP; 4. By utilizing the FRP thickness setting device arranged between the covering roller mounting arm and the film laying mechanism mounting frame, as well as the electric control method of the FRP thickness setting device, the gap between the film covering support roller and the top film covering roller can be conveniently and accurately adjusted, thereby conveniently and quickly controlling the thickness of the FRP material and improving the quality and production efficiency of the FRP products. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of an embodiment of a continuous production line for fiberglass reinforced plastics according to the present application.

[0030] Figure 2 This is a schematic diagram of a lower surface felt laying mechanism and a lower surface felt gluing mechanism in one embodiment of a continuous fiberglass production line of the present application.

[0031] Figure 3 This is a schematic diagram from another perspective of the lower surface felt gluing mechanism in one embodiment of the FRP continuous production line of the present application.

[0032] Figure 4 This is a schematic diagram of the partial structure of the lower surface felt gluing mechanism in one embodiment of the FRP continuous production line of the present application.

[0033] Figure 5 This is a schematic diagram of a glue filling and film coating unit in one embodiment of a continuous FRP production line of the present application.

[0034] Figure 6 for Figure 5 A partial enlarged view of part A.

[0035] Figure 7 for Figure 5 A partial enlarged view of part B.

[0036] Figure 8 This is a schematic diagram of a glue injection device in one embodiment of a continuous fiberglass production line of the present application.

[0037] Fig. 9 This is a schematic diagram of another perspective of the glue injection device in one embodiment of the FRP continuous production line of the present application (the glue injection barrel and its auxiliary structures are hidden).

[0038] Fig.10 This is a schematic diagram of a lower surface felt laying mechanism and a lower surface felt gluing mechanism in one embodiment of a continuous fiberglass production line of the present application.

[0039] Fig.11 This is a schematic diagram of the upper fiber placement and impregnation mechanism in one embodiment of the FRP continuous production line of the present application.

[0040] Fig.12 This is a schematic diagram of the structure of the impregnation roller part in one embodiment of the FRP continuous production line of the present application.

[0041] Fig.13 This is a schematic diagram of a cutting unit in one embodiment of a continuous fiberglass production line of the present application.

[0042] Fig.14 This is a schematic diagram of the internal structure of a trimming and longitudinal cutting machine in one embodiment of a continuous fiberglass production line of the present application.

[0043] Fig.15 This is a schematic diagram of the internal structure of the trimming and longitudinal cutting machine from another perspective in one embodiment of the continuous production line of fiberglass reinforced plastics of the present application.

[0044] Explanation of reference numerals: 1. Base film feeding and gluing unit; 11. Base film feeding mechanism; 111. Feeding bracket; 112. Base film bending axis; 113. Base film power roller group; 12. Gel coat scraping mechanism; 121. Scraping bracket; 1211. Scraping platform; 1212. Bracket side frame; 1213. Transverse support rod; 122. Gel coat scraping device; 1221. Gel coat scraper; 1222. Gel plate gantry support; 1223. Middle support screw; 1224. Fixed cover; 1225. Spiral edge cam; 1226. Camshaft; 1227. Adjusting hand wheel; 123. Glue scraping and flipping device; 1231. Rocker; 1232. Rocker Gear; 1233, first intermediate gear; 1234, second intermediate gear; 1235, flip rod gear; 1236, flip rod; 124, gel coat side baffle; 13, glue injection device; 131, glue injection device mounting frame; 132, glue injection seat; 133, transverse driving member; 1331, glue injection seat sprocket; 1332, glue injection seat chain belt; 1333, glue injection seat driving motor; 134, glue injection barrel; 135, glue injection motor; 136, glue injection wheel; 137, glue inlet hose; 138, curing agent hose; 139, glue outlet hose; 1391, filter bag; 2, gel coat curing unit; 3, fiber layer laying glue coating unit; 31, Lower surface felt laying mechanism; 311, lower surface felt reel frame; 312, lower surface felt guide roller; 313, lower surface felt laying roller pair; 32, lower surface felt gluing mechanism; 321, gluing bracket; 3211, bracket platform; 3212, side bracket; 3213, bracket cross support; 3214, side stop rubber plate; 322, glue scraping device; 3221, glue scraping plate; 3222, rubber plate side support; 3223, support sliding sleeve; 3224, bracket sliding rod; 3225, scraper worm gear screw elevator 33, upper fiber laying and impregnation mechanism; 331, main fiber layer laying device; 3311, main fiber layer laying mounting frame; 3312 , main fiber layer reel seat; 3313, main fiber layer guide roller; 3314, main fiber layer covering roller pair; 332, upper surface felt covering device; 3321, upper surface felt covering mounting frame; 3322, upper surface felt reel seat; 3323, upper surface felt guide roller; 3324, upper surface felt covering roller pair; 333, impregnation mechanism mounting frame; 334, impregnation roller; 3341, roller driving motor; 335, first impregnation roller; 3351, roller height adjustment frame; 3352, roller mounting seat; 3353, roller height adjustment rocker; 336, second impregnation roller; 4, glue filling and film coating unit; 41, top film unfolding mechanism; 411, unfolding mechanism mounting frame; 4111, transverse slide rail; 412, top film fixed shaft; 413, top film shaft mounting seat; 4131, seat base; 4132, middle seat; 4133, seat top pressure block; 4134, transverse slide block; 4135, adjusting nut; 4136, top screw; 4137, pressure screw; 4138, fixed shaft pressure block; 414, top film guide roller;415, guide roller mounting seat; 4151, guide roller adjusting screw; 416, top film bending roller; 42, top film covering mechanism; 421, film covering mechanism mounting frame; 422, covering support roller; 423, top film covering roller; 424, covering roller mounting arm; 425, covering roller pressure block; 426, FRP thickness setting device; 4261, thickness setting motor; 4262, worm gear screw lift; 4263, rod end lift block; 4264, top block shaft; 4265, thickness setting top block; 5, heating and curing unit; 51, distributor rack; 52, steel bar storage tank; 521, steel bar length limit plate; 53, steel bar output roller; 531, output roller shaft; 532, output motor; 533, output guide wheel; 534, magnetic output wheel; 54, steel bar distributor roller; 541, distributor roller shaft; 542, distributor motor; 543, distributor guide wheel; 544, distributor wheel; 55, material blocking structure; 56, vibrator; 6, trimming and cutting unit; 61, trimming Cutting bracket; 611, trimming side bracket; 612, side connecting frame; 613, top connecting frame; 62, trimming mechanism; 621, trimming mechanism sliding seat; 622, lateral drive screw; 623, lifting mounting seat; 624, lifting drive screw; 625, trimming mounting frame; 626, dust-free cutter; 627, trimming pad wheel; 628, trimming drive motor; 629, edge material winding device; 63, longitudinal shearing mechanism; 631, segmentation sliding seat; 632, segmentation slide Screw rod; 633, splitting mounting frame; 634, lifting hydraulic cylinder; 635, splitting drive motor; 636, splitting cutter; 64, trimming roller; 65, electrostatic processor; 66, dust removal nozzle; 67, dust removal conveyor; 68, cutting machine; 69, lower dust suction pipe; 7, discharge unit; 8, film coating unit; 81, film coating device; 82, coating device; 91, bottom film; 92, top film; 93, lower surface felt; 94, main fiber layer; 95, upper surface felt. ; DETAILED DESCRIPTION

[0045] The specific implementation of the present application is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present application, and is not used to limit the present application.

[0046] In the present application, unless otherwise stated, the directions or positional relationships indicated by the directional words such as "front, rear, longitudinal, and transverse" are based on the directions or positional relationships of the movement of the FRP materials in the FRP continuous production line of the present application. Among them, the directional word "longitudinal" refers to the direction of movement of the FRP materials on the production line in the present application, "transverse" refers to the direction perpendicular to the "longitudinal" on the horizontal plane, "front" refers to the direction of the feed end of the production line, and "rear" refers to the direction of the discharge end of the production line. The description of the directions or positional relationships of the FRP continuous production line and its components of the present application is consistent with the actual installation directions in the production line when it is used.

[0047] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0048] In this specification, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features.

[0049] An embodiment of the glass fiber reinforced plastic continuous production line of the present application is as follows: Figure 1 As shown, it includes a base film feeding and gluing unit 1, a gel coat curing unit 2, a fiber layer laying and gluing unit 3, a glue filling and laminating unit 4, a heating and curing unit 5, a trimming and cutting unit 6 and a discharging unit 7. The base film feeding and gluing unit 1, the gel coat curing unit 2, the fiber layer laying and gluing unit 3, the glue filling and laminating unit 4, the heating and curing unit 5, the trimming and cutting unit 6 and the discharging unit 7 are arranged in sequence and are connected to each other through a material conveying mechanism.

[0050] The base film feeding and gluing unit 1 is arranged at the front end of the production line, and is used to flatten the base film 91 and introduce it into the production line, and transport it backward along the production line, and apply a layer of gel coat on the base film 91. The base film 91 can be made of PET polyester film, and the roll of the base film 91 can be put on a rotating shaft, and the base film 91 can be released from the roll by the rotation of the rotating shaft, and the flattened base film 91 can be transported to the production line.

[0051] After the base film 91 enters the production line, a layer of resin glue with a set thickness and a set width is scraped on the base film 91 to form a gel coat on one side of the upper surface of the base film 91. The base film 91 with the gel coat is conveyed backward along the production line.

[0052] The gel coat curing unit 2 is arranged at the rear section of the base film feeding and gluing unit 1, and the base film 91 with the gel coat is transported backward inside the gel coat curing unit 2. A heating element is arranged inside the gel coat curing unit 2, and the gel coat is gradually cured under the heating of the heating element. When leaving the gel coat curing unit 2, it forms a semi-cured state that cannot flow but has a certain viscosity. In this way, not only a resin gel coat layer of a certain thickness can be formed under the fiber layer to be laid subsequently, preventing the fiber filaments from protruding from the lower surface of the FRP material and ensuring the quality of the lower surface of the FRP, but also the fiber layer can be prevented from sliding on the base film 91 when laying the fiber layer, ensuring the accuracy of the fiber layer laying position.

[0053] The fiber layer laying and gluing unit 3 is arranged behind the gel coat curing unit 2, and is used for laying the fiber layer material on the gel coat of the base film 19, adding resin glue to the fiber layer material, and mixing the resin glue and the fiber layer material evenly, so that the resin glue is fully infiltrated into the fiber layer to form a fiberglass material, so that a fiberglass product can be formed after the resin glue is cured.

[0054] The glue filling and coating unit 4 is arranged behind the fiber layer laying and gluing unit 3, and is used for adding an appropriate amount of resin glue between the fiber layer and the top film 92 while laying the top film 92 on the fiber layer, so that the resin glue can fill the possible depressions on the fiber layer and better cover the fibers in the fiber layer, thereby forming a smooth upper surface of the composite material and forming a symmetrical structure covering the surfaces on both sides of the fiber layer together with the gel coat layer, and at the same time, forming a set thickness of the composite material layer.

[0055] The heating and curing unit 5 is arranged behind the glue-repairing and film-covering unit 4, and is used for heating the composite material layer to cure the resin therein to form a fiber-reinforced glass fiber reinforced plastic material.

[0056] A film coating unit 8 may be provided behind the heating and curing unit 5, and the film coating unit 8 includes a film coating mechanism 81 and a coating mechanism 82. The film coating mechanism 81 is used to remove the bottom film 91 and the top film 92 that have been heated and deformed by the heating and curing unit 5 from the FRP material, and the coating mechanism 82 is used to re-coat a new bottom film 91 and a new top film 92 on the bottom and top surfaces of the FRP material, respectively, to protect the upper and lower surfaces of the FRP material.

[0057] The trimming and cutting unit 6 is arranged behind the heating and curing unit 5, and a discharging unit 7 may also be arranged behind the trimming and cutting unit 6. The trimming and cutting unit 6 trims the edges of the FRP material on both sides and cuts the FRP products into a set width and a set length. The discharging unit 7 is used to collect and output the FRP products, and roll the FRP products with a longer length into rolls, and stack and pack the FRP products in a plate shape.

[0058] In some embodiments of the glass fiber reinforced plastic continuous production line of the present application, Figure 1 As shown, the fiber layer placing and gluing unit 3 includes a lower surface felt placing mechanism 31 , a lower surface felt gluing mechanism 32 and an upper layer fiber placing and impregnating mechanism 33 .

[0059] The lower surface felt laying mechanism 31 and the lower surface felt gluing mechanism 32 are both arranged behind the gel coat curing unit 2, and are used to lay the lower surface felt 93 and add resin glue on the gel coat on the base film 91. The lower surface felt 93 can be made of, but not limited to, glass fiber surface felt, polyester fiber surface felt, non-woven fabric surface felt, carbon fiber surface felt, basalt fiber surface felt, plastic fiber surface felt, etc., and can also be made of a composite of two or more of the above materials.

[0060] The lower surface felt laying mechanism 31 and the lower surface felt gluing mechanism 32 can be configured such that the lower surface felt laying mechanism 31 is arranged behind the gel coat curing unit 2, and the lower surface felt gluing mechanism 32 is arranged behind the lower surface felt laying mechanism 31. The lower surface felt laying mechanism 31 first lays the lower surface felt 93 on the semi-cured gel coat, and the lower surface felt gluing mechanism 32 then adds a set thickness of resin glue on the lower surface felt 93. The lower surface felt laying mechanism 31 and the lower surface felt gluing mechanism 32 can also be configured such that the lower surface felt gluing mechanism 32 is arranged behind the gel coat curing unit 2, and the lower surface felt laying mechanism 31 is arranged behind the lower surface felt gluing mechanism 32. The lower surface felt gluing mechanism 32 first adds a set thickness of resin glue on the gel coat of the base film 91, and then the lower surface felt laying mechanism 31 lays the lower surface felt 93 on the resin glue.

[0061] The upper fiber placement and impregnation mechanism 33 is arranged behind the lower surface felt placement mechanism 31 and the lower surface felt glue coating mechanism 32, and is used to sequentially place the main fiber layer 94 and the upper surface felt 95 on the lower surface felt 93 or the resin glue on the lower surface felt 93. The main fiber layer 94 can be, but is not limited to, chopped yarn, continuous yarn, chopped mat, continuous mat, stitched mat, composite mat, woven cloth, etc. formed by glass fiber, polyester fiber, carbon fiber, basalt fiber, plastic fiber, or two or more of the above fibers; the material selection of the upper surface felt 95 is the same as that of the lower surface felt 93, and the two usually use the same material. After laying the main fiber layer 94 and the upper surface felt 95, the fiber layer is squeezed from below the base membrane 91 and above the upper surface felt 95, so that the resin glue flows between the fibers of the lower surface felt 93, the main fiber layer 94 and the upper surface felt 95, and the resin glue is fully infiltrated into the lower surface felt 93, the main fiber layer 94 and the upper surface felt 95, forming a fiberglass material with the resin glue evenly distributed in the fiber layer.

[0062] In some embodiments of the glass fiber reinforced plastic continuous production line of the present application, Figures 1 to 3As shown, the base film feeding and gluing unit 1 includes a base film feeding mechanism 11 and a gel coat scraping mechanism 12. The base film feeding mechanism 11 includes a feeding bracket 111, a base film bending roller 112 and a base film power roller group 113. The rotating shaft of the base film 91 roll is rotatably mounted on the feeding bracket 111. The base film bending roller 112 is arranged on one side of the base film 91 roll. Both ends of the base film bending roller 112 are also rotatably connected to the feeding bracket 111. The base film 91 on the roll is transferred to the base film power roller group 113 after being guided by the base film bending roller 112. The base film bending roller 112 can flatten the base film 91. The base film power roller group 113 is arranged at the entrance of the production line, including a driving roller and a driven roller arranged opposite to each other. The driving roller can rotate under the drive of the driving motor to transfer the base film 91 clamped between the driving roller and the driven roller backward along the production line.

[0063] The gel coat scraping mechanism 12 is arranged at the rear of the base film feeding mechanism 11, and includes a scraping bracket 121, a gel coat scraping device 122, a gel coat flipping device 123, a gel coat side baffle 124 and a glue injection device 13. The scraping bracket 121 is arranged at the rear of the base film feeding mechanism 11, and includes a scraping platform 1211, a bracket side frame 1212 and a transverse support rod 1213. The scraping platform 1211 is arranged transversely below the base film 91 to support the base film 91. Two bracket side frames 1212 are provided, and the two bracket side frames 1212 are respectively arranged on both sides of the scraping platform 1211, which can support and position the scraping platform 1211 and other structures in the gel coat scraping mechanism 12. The transverse support rod 1213 is connected between the two bracket side frames 1212.

[0064] The glue injection device 13 is installed above the coating bracket 121, and is used to add resin glue on the base film 91 and spread the resin glue within a set range on the base film 91, which is conducive to uniform distribution of the resin glue on the base film and forming a gel coat on the base film.

[0065] Two gel coat side baffles 124 are provided, and the two gel coat side baffles 124 are installed on a transverse support rod 1213, and extend longitudinally on both sides of the base film 91 along the conveying direction of the base film 91. The bottom surface of the gel coat side baffle 124 contacts the base film 91, and is used to limit the resin glue added to the base film 91 by the glue injection device 13 to the range between the two gel coat side baffles 124. The installation position of the two gel coat side baffles 124 on the transverse support rod 1213 can be adjusted, so that the distribution width of the resin glue on the base film 91 can be adjusted, so as to form gel coats of different widths on the base film.

[0066] The gel coat scraping device 122 is disposed at the rear end between the two support side frames 1212, and can be flipped under the control of the gel coat scraping flipping device 123. At different flipping angles of the gel coat scraping device 122, gaps of different distances are formed between the gel coat scraping device 122 and the scraping platform 1211, thereby controlling the thickness of the resin glue added to the base film 91 to form gel coats of different thicknesses. The gel coat scraping device 122 can also be lifted by the gel coat flipping device 123, so as to facilitate cleaning of the gel coat scraping device.

[0067] In a preferred embodiment of the glass fiber reinforced plastic continuous production line of the present application, as Figure 3 and Figure 4 As shown, the gel-coat scraping device 122 includes a gel-coat scraper 1221, a gel-coat gantry support 1222, and a middle support screw 1223. The gel-coat scraper 1221 is disposed horizontally above the base film 91, fixedly connected to the gel-coat scraping and flipping device 123, and can flip under the drive of the gel-coat scraping and flipping device 123. The gel-coat gantry support 1222 includes two obliquely connected support plates, the lower ends of the two oblique support plates are respectively fixed to the two ends of the gel-coat scraper 1221, and the upper ends extend obliquely upward and are connected above the middle of the gel-coat scraper 1221. The middle support screw 1223 is arranged in the middle part of the gel coat scraper 1221, the lower end of the middle support screw 1223 is connected to the gel coat scraper 1221, and the upper end is clamped on the gel coat gantry support 1222 through an adjusting nut. The height of the middle part of the gel coat scraper 1221 can be adjusted through the middle support screw 1223 to prevent the middle part of the gel coat scraper 1221 from sinking under the action of gravity, thereby ensuring that the bottom edge of the gel coat scraper 1221 is flush.

[0068] An adjustable support device is also provided at both ends of the gel-coat scraper 1221, and the adjustable support device includes a fixed cover 1224, a spiral edge cam 1225, a cam shaft 1226 and an adjusting hand wheel 1227. The two fixed covers 1224 are respectively fixed at the lower part of both ends of the gel-coat scraper 1221, and are arranged opposite to the scraping platform 1211. The spiral edge cam 1225 is arranged in the fixed cover 1224, and the cam shaft 1226 is fixed at the center position of the spiral edge cam 1225 and is rotatably connected to the fixed cover 1224. An axial slide groove is provided on the cam shaft 1226, and the adjusting hand wheel 1227 is slidably connected to the cam shaft 1226 through the axial slide groove, and can drive the cam shaft to rotate, so that different positions around the spiral edge cam 1225 are supported on the scraping platform 1211, and the gel-coat scraper 1221 is stably supported at different heights. A clamping rod is provided on the inner side of the adjusting hand wheel 1227, and a plurality of clamping holes are provided on the opposite surface of the fixed cover 1224. By pushing the adjusting hand wheel 1227 axially on the cam shaft 1226, the clamping rod can be clamped with different clamping holes, thereby fixing the spiral edge cam 1225 at different rotational positions, thereby ensuring the stability of the position of the gel coat scraper 1221.

[0069] The scraper and flipping device 123 includes a rocker 1231, a rocker gear 1232, a first intermediate gear 1233, a second intermediate gear 1234, a flipping rod gear 1235 and a flipping rod 1236. The rocker 1231 is rotatably connected to the bracket side frame 1212 on one side, and the rocker gear 1232 is fixed on the rotating shaft of the rocker 1231. The first intermediate gear 1233 is rotatably connected to the bracket side frame 1212 on one side of the rocker 1231 and meshes with the rocker gear 1232. The second intermediate gear 1234 is coaxially fixed to the first intermediate gear 1233 and meshes with the flipping rod gear 1235. The flipping rod gear 1235 is fixed to the flipping rod 1236, and the flipping rod 1236 is rotatably connected to the bracket side frame 1212. The gel coat scraper 1221 is fixed to one side of the flipping rod 1236 and can be flipped as the flipping rod 1236 rotates.

[0070] The rocker gear 1232 is a small gear with a small number of teeth, while the first intermediate gear 1233 is a large gear with a large number of teeth, and the transmission ratio of the two is greater than 1; similarly, the second intermediate gear 1234 is a small gear with a small number of teeth, and the flip lever gear 1235 is a large gear with a large number of teeth, and the transmission ratio of the two is greater than 1. Therefore, the transmission ratio between the rocker 1231 and the flip lever 1236 is much greater than 1, so that when the rocker 1231 is rotated, the flip lever 1236 and its slow speed rotate, driving the gel coat scraper 1221 and its slow speed to flip, so that the distance between the gel coat scraper 1221 and the scraping platform 1211 can be adjusted more accurately.

[0071] In some embodiments of the glass fiber reinforced plastic continuous production line of the present application, Figures 5 to 7 As shown, the glue filling and coating unit 4 includes a top film unfolding mechanism 41, a top film laying mechanism 42, and a glue injection device 13 arranged at the front side of the top film laying mechanism 42. Among them, the top film unfolding mechanism 41 includes an unfolding mechanism mounting frame 411, a top film fixing shaft 412, a top film shaft mounting seat 413, a top film guide roller 414, a guide roller mounting seat 415, and a top film bending roller 416. The unfolding mechanism mounting frame 411 is arranged on both sides of the bottom film 91 behind the fiber layer laying and gluing unit 3, and is arranged laterally opposite to each other on both sides of the bottom film 91 in the conveying direction.

[0072] The top film shaft mounting seat 413 includes a seat base 4131, an intermediate seat 4132 and a seat top pressure block 4133. A transverse slide rail 4111 is provided on the rear side of the unfolding mechanism mounting frame 411. A transverse slider 4134 is provided at the bottom of the seat base 4131. The seat base 4131 is slidably mounted on the unfolding mechanism mounting frame 411 through the cooperation of the transverse slider 4134 and the transverse slide rail 4111, so that it can slide left and right on the unfolding mechanism mounting frame 411. A locking screw can also be provided on the seat base 4131. Rotating the locking screw can make the end of the locking screw abut against the unfolding mechanism mounting frame 411, thereby fixing the position of the seat base 4131 on the unfolding mechanism mounting frame 411. The middle seat 4132 is mounted on the seat base 4131. Adjustment nuts 4135 are fixedly arranged on both the front and rear sides of the middle seat 4132 on the seat base 4131. A tightening screw 4136 is screwed into the adjustment nut 4135. The tightening screw 4136 is screwed so that both ends thereof are pressed against the front and rear sides of the middle seat 4132, thereby adjusting and limiting the front and rear position of the middle seat 4132 on the base 4131. The seat top pressing block 4133 is hinged at one end of the top surface of the middle seat 4132. A tightening screw 4137 is hinged at the other end of the middle seat 4132. A screw groove is arranged at the other end of the seat top pressing block 4133. The tightening screw 4137 is rotated so that the tightening screw 4137 is engaged in the screw groove. The seat top pressing block 4133 can be pressed against the middle seat 4132 by rotating the nut on the tightening screw 4137. A fixed shaft pressing block 4138 is provided at a relative position on the seat top pressing block 4133 and the middle seat 4132, and a fixed shaft groove is provided at a relative position on the fixed shaft pressing block 4138. The two ends of the top film fixed shaft 412 are respectively installed in the fixed shaft grooves and can rotate in the fixed shaft grooves. The nut on the rotating pressing screw 4137 can also adjust the rotation resistance of the top film fixed shaft 412. The reel of the top film 92 is fixed on the top film fixed shaft 412, and the rotation resistance of the top film fixed shaft 412 affects the tension of the top film 92.

[0073] The guide roller mounting seat 415 is installed on the front side of the unfolding mechanism mounting frame 411. A guide roller adjusting screw 4151 is arranged on one side of the guide roller mounting seat 415 on the unfolding mechanism mounting frame 411. The guide roller adjusting screw 4151 is threadedly connected to the unfolding mechanism mounting frame 411, and one end is rotatably connected to the guide roller mounting seat 415. By rotating the guide roller adjusting screw 4151, the front and rear position of the guide roller mounting seat 415 on the unfolding mechanism mounting frame 411 can be adjusted.

[0074] The two ends of the top film guide roller 414 are rotatably arranged on the guide roller mounting seat 415, and the two ends of the top film bending roller 416 are rotatably connected to the unfolding mechanism mounting frame 411 below the top film fixed shaft 412. The top film 92 bypasses the top film guide roller 414 and the top film bending roller 416 and is transported to the top film covering mechanism 42. Adjusting the front and rear positions of the guide roller mounting seat 415 can adjust the lateral position of the top film 92 when it is transported to the top film covering mechanism 42. The top film bending roller 416 is conducive to the unfolding and flattening of the top film 92.

[0075] The top film laying mechanism 42 includes a film laying mechanism mounting frame 421, a film covering support roller 422, a top film laying roller 423, a laying roller mounting arm 424, a laying roller pressure block 425 and a glass fiber reinforced plastic thickness setting device 426. The film laying mechanism mounting frame 421 is arranged between the fiber layer laying and gluing unit 3 and the top film unfolding mechanism 41, and is arranged on both sides of the lateral direction of the conveying direction of the bottom film 91. The film covering support roller 422 is arranged below the bottom film 91, and both ends are rotatably connected to the film laying mechanism mounting frame 421. A laying roller mounting arm 424 is respectively arranged on the film laying mechanism mounting frame 421 on both sides of the bottom film 91, one end of the laying roller mounting arm 424 is rotatably connected to the film laying mechanism mounting frame 421, and a laying roller pressure block 425 is fixed to the other end of the laying roller mounting arm 424. The top film laying roller 423 is rotatably connected to the laying roller mounting arm 424, and is arranged opposite to the film covering support roller 422.

[0076] The glue injection device 13 is arranged above the top film covering mechanism 42 , and is used to add resin glue between the upper surface felt 95 and the top film 92 , to fill the resin glue defects on the upper surface felt 95 , and to form a resin glue covering layer on one side above the upper surface felt 95 .

[0077] The FRP thickness setting device 426 is arranged between the covering roller mounting arm 424 and the film laying mechanism mounting frame 421. The FRP thickness setting device 426 can be used to adjust the gap size between the top film covering roller 423 and the film covering support roller 422, thereby controlling the thickness of the total composite material layer supplemented with resin glue passing between the top film covering roller 423 and the film covering support roller 422.

[0078] In a preferred embodiment of the glass fiber reinforced plastic continuous production line of the present application, as Figure 7As shown, the FRP thickness setting device 426 includes a thickness setting motor 4261, a worm gear screw lift 4262, a rod end lifting block 4263, a top block shaft 4264 and a thickness setting top block 4265. The worm gear screw lift 4262 is fixed on the film laying mechanism mounting frame 421 and is located below the top film laying roller 423. The thickness setting motor 4261 is fixed on the worm gear screw lift 4262, and the output shaft of the thickness setting motor 4261 is connected to the worm of the worm gear screw lift 4262. The rod end lifting block 4263 is fixed to the end of the lifting screw of the worm gear screw lift 4262, and a rotating shaft positioning groove is provided at the top of the rod end lifting block 4263.

[0079] The top block shaft 4264 is fixed at the bottom of the thickness-fixing top block 4265, and the top block shaft 4264 is installed in the shaft positioning groove and can rotate in the shaft positioning groove. The thickness-fixing top block 4265 is supported below the covering roller mounting arm 424. By controlling the rotation of the thickness-fixing motor 4261, the rod end lifting block 4263 can be driven to slowly rise and fall through the worm gear screw lift 4262, and the covering roller mounting arm 424 can be pushed to slowly rotate through the thickness-fixing top block 4265, so as to adjust the gap size between the top film covering roller 423 and the covering film support roller 422. The setting of the top block shaft 4264 enables the thickness-fixing top block 4265 to rotate together with the covering roller mounting arm 424.

[0080] In some embodiments of the glass fiber reinforced plastic continuous production line of the present application, Figure 8 and Fig. 9 As shown, the glue injection device 13 includes a glue injection device mounting frame 131, a glue injection seat 132, a transverse driving member 133, a glue injection barrel 134, a glue injection motor 135, a glue injection wheel 136, a glue inlet hose 137, a curing agent hose 138 and a glue outlet pipe 139. The glue injection device mounting frame 131 is arranged above the bottom film 91 across both sides of the bottom film 91, and a transverse slide rail perpendicular to the conveying direction of the bottom film 91 is arranged on the glue injection device mounting frame 131. The glue injection seat 132 is slidably mounted on the slide rail and can slide transversely on the glue injection device mounting frame 131. The transverse driving member 133 includes a glue injection seat sprocket 1331 arranged at both ends of the glue injection device mounting frame 131, a glue injection seat chain belt 1332 installed on the two glue injection seat sprockets 1331, and a glue injection seat drive motor 1333 driven and connected to one of the glue injection seat sprockets 1331, and the glue injection seat chain belt 1332 is connected to the glue injection seat 132. By controlling the injection seat driving motor 1333 to rotate periodically in the opposite direction, the injection seat 132 can be driven to move back and forth laterally within a certain range above the bottom film 91 .

[0081] The glue injection barrel 134 and the glue injection motor 135 are both fixed on the glue injection seat 132. The glue injection motor 135 is located directly above the glue injection barrel 134, and the output shaft of the glue injection motor 135 extends into the glue injection barrel 134. The glue injection wheel 136 is fixed on the output shaft of the glue injection motor 135 and is located at the bottom of the glue injection barrel 134. A stirring tooth is arranged around the glue injection wheel 136. One end of the glue feeding hose 137 is connected to the external resin glue storage device, and the other end is connected to the lower part of the glue injection barrel 134, and is used to transport the resin glue in the external resin glue storage device to the glue injection barrel 134. One end of the curing agent hose 138 is connected to the external resin glue curing agent storage container, and the other end is connected to the lower part of the glue injection barrel 134, and is used to transport a set amount of resin glue curing agent to the glue injection barrel 134, and fully mix with the resin glue under the stirring of the glue injection wheel 136 to increase the curing speed of the resin glue. The glue outlet pipe 139 is arranged at the upper part of the glue injection barrel 134, and a filter bag 1391 is arranged at the outlet of the glue outlet pipe 139. When the glue injection motor 135 rotates, it can drive the glue injection wheel 136 to rotate in the glue injection barrel 134, and use the stirring teeth to stir the resin glue in the glue injection barrel 134, so that the liquid level of the resin glue rises, and the resin glue flows out through the outlet of the glue outlet pipe 139, and falls on the bottom film 91 or the fiber material above the bottom film 91 after being filtered by the filter bag 1391. By controlling the rotation speed and the reverse rotation cycle of the glue injection seat driving motor 1333, the injection range and injection amount of the resin glue on the composite material layer can be controlled; by controlling the rotation speed of the glue injection motor 135, the injection amount of the resin glue on the composite material layer can also be controlled.

[0082] In some embodiments of the glass fiber reinforced plastic continuous production line of the present application, Figures 10 to 12 As shown, the lower surface felt laying mechanism 31 includes a lower surface felt reel frame 311, a lower surface felt guiding roller 312 and a lower surface felt laying pair of rollers 313. The lower surface felt reel frame 311 is laterally arranged above the base film 91. The lower surface felt guiding roller 312 is arranged at the front end of the lower surface felt reel frame 311 to support and guide the lower surface felt 93. The lower surface felt laying pair of rollers 313 are arranged at the lower part of the lower surface felt reel frame 311 on the transmission path of the base film 91. The lower surface felt 93 bypasses the lower surface felt guiding roller 312 and passes through the lower surface felt laying pair of rollers 313 together with the base film 91. The lower surface felt 93 is laid on the gel coat on the upper surface of the base film 91 by using the lower surface felt laying pair of rollers 313.

[0083] The lower surface felt gluing mechanism 32 includes a gluing bracket 321, a glue scraping device 322 and a glue injection device 13. The gluing bracket 321 is arranged at the rear of the lower surface felt laying mechanism 31, and includes a bracket platform 3211, a side bracket 3212 and a bracket cross support 3213. The bracket platform 3211 is arranged horizontally below the bottom film 91 to support the bottom film 91 and the lower surface felt 93 laid on the bottom film, so that the lower surface felt 93 laid on the bottom film 91 is laid flat on the bracket platform 3211 for smooth transmission. There are two side brackets 3212, and the two side brackets 3212 are respectively arranged on both sides of the bracket platform 3211, which can support and position the bracket platform 3211 and other structures in the lower surface felt gluing mechanism 32. There are multiple bracket cross supports 3213, and the multiple bracket cross supports 3213 are connected to different positions between the two side brackets 3212.

[0084] Two side rubber baffles 3214 are provided on the bracket cross support 3213 adjacent to the lower surface felt 93. The two side rubber baffles 3214 are installed on the same bracket cross support 3213 and extend longitudinally on both sides of the lower surface felt 93 along the conveying direction of the lower surface felt 93. The bottom surface of the side rubber baffles 3214 contacts the lower surface felt 93, and is used to limit the resin glue added by the glue injection device 13 on the lower surface felt 93 to the range between the two side rubber baffles 3214. The installation positions of the two side rubber baffles 3214 on the bracket cross support 3213 can be adjusted, so that the distribution width of the resin glue on the lower surface felt 93 can be adjusted, so as to produce glass fiber reinforced plastic products of different specifications.

[0085] The scraper device 322 is arranged at the rear end between the two side brackets 3212, and includes a scraper plate 3221, a scraper plate side support 3222, a support sleeve 3223, a support slide bar 3224 and a scraper plate worm screw lift 3225. The scraper plate 3221 is arranged horizontally between the two side brackets 3212, and the scraper plate side support 3222 is arranged at both ends of the scraper plate 3221. The support sleeve 3223 is vertically arranged at one end of the scraper plate side support 3222 connected to the scraper plate 3221, and a support slide bar 3224 is arranged on the side bracket 3212 corresponding to the scraper plate side support 3222, and the scraper plate side support 3222 is slidably installed on the support slide bar 3224 through the support sleeve 3223. The scraper worm gear screw lift 3225 is fixed on the side bracket 3212 and supported below the rubber plate side support 3222. When the scraper worm gear screw lift 3225 is working, it can drive the rubber plate side support 3222 to rise and fall, drive the scraper plate 3221 to rise and fall, and adjust the distance between the scraper plate 3221 and the bracket platform 3211.

[0086] The glue injection device 13 is installed above the glue coating bracket 321, and is used to add resin glue between the two side glue baffles 3214 on the lower surface felt 93, and spread the resin glue within a set range on the lower surface felt 93. The scraper worm gear screw lift 3225 can be adjusted to facilitate the uniform distribution of the resin glue on the lower surface felt 93, thereby adjusting the distance between the scraper 3221 and the bracket platform 3211, thereby adjusting the thickness of the resin glue added on the lower surface felt 93.

[0087] The upper fiber laying and impregnation mechanism 33 comprises a main fiber layer laying device 331, an upper surface felt laying device 332, an impregnation mechanism mounting frame 333, an impregnation roller 334, a first impregnation pressing roller 335 and a second impregnation pressing roller 336. A plurality of main fiber layer laying devices 331 can be provided, and each main fiber layer laying device 331 comprises a main fiber layer laying mounting frame 3311, a main fiber layer reel seat 3312, a main fiber layer guide roller 3313 and a main fiber layer laying pair of rollers 3314. The main fiber layer laying mounting frame 3311 is arranged above the bottom film 91 across the bottom film 91, the main fiber layer reel seat 3312 is arranged on the main fiber layer laying mounting frame 3311, the material roll of the main fiber layer 94 is installed on the main fiber layer reel seat 3312, the main fiber layer guide roller 3313 is arranged at the front end of the main fiber layer laying mounting frame 3311, and the main fiber layer laying pair of rollers 3314 is arranged below the main fiber layer reel seat 3312 on the main fiber layer laying mounting frame 3311. The bottom film 91 covered with the lower surface felt 93 and other materials passes between the main fiber layer laying pair of rollers 3314, the main fiber layer 94 on the main fiber layer reel seat 3312 bypasses the main fiber layer guide roller 3313 and enters the main fiber layer laying pair of rollers 3314, and is laid on the lower surface felt 93 after the injection of glue or above the next layer of the main fiber layer 94 under the action of the main fiber layer laying pair of rollers 3314.

[0088] The upper surface felt covering device 332 is arranged at the rear end of the main fiber layer covering device 331, and includes an upper surface felt covering mounting frame 321, an upper surface felt reel seat 322, an upper surface felt guide roller 323 and an upper surface felt covering pair of rollers 324. The upper surface felt covering mounting frame 321 is arranged above the bottom film 91 across the bottom film 91, the upper surface felt reel seat 322 is arranged on the upper surface felt covering mounting frame 321, the material roll of the upper surface felt 95 is installed on the upper surface felt reel seat 322, the upper surface felt guide roller 323 is arranged at the front end of the upper surface felt covering mounting frame 321, and the upper surface felt covering pair of rollers 324 is arranged below the upper surface felt reel seat 322 on the upper surface felt covering mounting frame 321. After being covered with the main fiber layer 94, the bottom film 91 passes between the upper surface felt covering rollers 324, and the upper surface felt 95 on the upper surface felt reel seat 322 bypasses the upper surface felt guide roller 323 and enters the upper surface felt covering rollers 324, and is covered on top of the main fiber layer 94 under the action of the upper surface felt covering rollers 324.

[0089] The wetting mechanism mounting frame 333 is arranged behind the upper surface felt covering device 332, and is arranged from the bottom of the bottom film 91 through the two sides of the bottom film 91. The wetting roller 334 is laterally supported under the bottom film 91, and its two ends are rotatably connected to the wetting mechanism mounting frame 333. The first wetting pressing roller 335 and the second wetting pressing roller 336 are respectively arranged on the front and rear sides of the wetting roller 334, and are laterally arranged above the upper surface felt 95, and their two ends are rotatably connected to the wetting mechanism mounting frame 333 on both sides of the bottom film 91.

[0090] A roller drive motor 3341 is provided on the infiltration mechanism mounting frame 333 at one end of the infiltration roller 334. The output shaft of the roller drive motor 3341 is connected to the infiltration roller 334 through a coupling to drive the infiltration roller 334 to rotate. A roller height adjustment frame 3351 is provided on the infiltration mechanism mounting frame 333 at both ends of the first infiltration roller 335 and the second infiltration roller 336. A roller mounting seat 3352 is slidably provided on the roller height adjustment frame 3351. A roller height adjustment rocker 3353 is provided between the roller height adjustment frame 3351 and the roller mounting seat 3352. The roller height adjustment rocker 3353 passes through the top of the roller height adjustment frame 3351 and is threadedly connected to the roller height adjustment frame 3351, and the lower end is connected to the roller height adjustment frame 3351. The pressure roller mounting seat 3352 is rotatably connected, and the position of the pressure roller mounting seat 3352 on the pressure roller height adjustment frame 3351 can be adjusted by rotating the pressure roller height adjustment rocker 3353, thereby adjusting the height of the first wetting roller 335 or the second wetting roller 336 on the wetting mechanism mounting frame 333, and applying different pressures to the composite material layer on the membrane 91 passing between the first wetting roller 335 and the second wetting roller 336 and the wetting roller 334, thereby promoting sufficient infiltration of the resin glue in the composite material layer.

[0091] The impregnation roller 334, the first impregnation roller 335 and the second impregnation roller 336 can use any one of a bare roller, an annular roller, a strip roller and a wool roller, or any combination of two or more of the bare roller, annular roller, strip roller and wool roller. The extrusion between the impregnation roller 334 and the first impregnation roller 335 and the second impregnation roller 336 can cause the resin glue in the composite material layer to flow in different directions, thereby repeatedly and evenly impregnating the lower surface felt 93, the main fiber layer 94 and the upper surface felt 95 in the composite material layer, ensuring the uniformity and stability of the FRP product structure formed after the resin glue is cured, thereby improving the quality of the FRP product.

[0092] In some embodiments of the glass fiber reinforced plastic continuous production line of the present application, Fig.13 and Fig.14As shown, the trimming and cutting unit 6 includes a trimming and longitudinal cutting machine, a dust removal conveyor 67 and a cutting machine 68. The trimming and longitudinal cutting machine includes a trimming stand 61, a trimming mechanism 62, a longitudinal cutting mechanism 63, a trimming roller 64, an electrostatic processor 65 and a dust removal air nozzle 66. The trimming stand 61 includes a trimming workbench 611 arranged horizontally below the base film 91 and a trimming cover 614 arranged on the trimming workbench 611. The trimming workbench 611 is arranged on the ground, providing an installation and positioning platform for other structures in the trimming and cutting unit 6; the trimming cover 614 is installed in the peripheral area of ​​the trimming workbench 611, and covers other structures in the trimming and cutting unit 6 in the trimming cover 614. Glass fiber reinforced plastic through holes 6141 are arranged at relative positions on the front and rear sides of the trimming cover 614, so that the glass fiber reinforced plastic material formed by the curing of the composite material can pass through the trimming cover 614. A dust suction duct 6142 is provided on the top of the trimming cover 614 to remove dust generated by cutting the fiberglass reinforced plastic material in the trimming cover 614, thereby reducing dust pollution in the workplace.

[0093] A bottom connecting frame 612 and a top connecting frame 613 connected between the side walls of the trimming cover 614 are provided in the trimming cover 614. Specifically, the two ends of the bottom connecting frame 612 are connected to the side walls of the trimming cover 614, and the bottom is fixed to the front end area of ​​the trimming workbench 611. Two top connecting frames 613 are provided, and the two top connecting frames 613 are both arranged on the same horizontal plane of the top area of ​​the trimming cover 614, one of the top connecting frames 613 is arranged directly above the bottom connecting frame 612, and the other top connecting frame 613 is arranged behind the previous top connecting frame 613.

[0094] A transverse sliding bar is provided on one side of the bottom connecting frame 612 and the top connecting frame 613 directly above it. The trimming mechanism 62 is installed between the top connecting frame 613 and the top connecting frame 613 directly above it through the transverse sliding bar, and can slide laterally along the transverse sliding bar, so that the trimming mechanism 62 can be used to perform trimming at different transverse positions on the fiberglass material to form a fiberglass material with a set width and smooth edges.

[0095] A transverse sliding bar is also provided on the top of the two top connecting frames 613. The longitudinal shearing mechanism 63 is installed between the two top connecting frames 613 through the transverse sliding bar and can slide laterally along the transverse sliding bar. Therefore, the longitudinal shearing mechanism 63 can be used to longitudinally cut the fiberglass material into several fiberglass material strips of different widths to obtain a fiberglass product with a smaller width.

[0096] Both ends of the trimming roller 64 are rotatably connected to the side walls of the trimming cover 614, and supported under the bottom film 91 of the FRP material on the rear side of the longitudinal cutting mechanism 63, so as to lift the FRP material and facilitate the longitudinal cutting mechanism 63 to cut the FRP material longitudinally.

[0097] The electrostatic processor 65 is arranged below the FRP material on the rear side of the trimming roller 64, and can remove the static electricity on the FRP material due to trimming, and prevent the static electricity from adsorbing the trimming dust on the FRP material, thereby hindering the removal of dust on the FRP material.

[0098] The dust removal nozzle 66 is arranged above the FRP material and is arranged opposite to the electrostatic processor 65. The dust removal nozzle 66 is connected to an external negative pressure air source, and can form a negative pressure airflow above the FRP material to remove dust on the upper surface of the FRP material. A lower dust suction pipe 69 can also be arranged below the FRP material near the electrostatic processor 65, and the side wall of the lower dust suction pipe 69 is provided with a plurality of dust suction ports facing the FRP material. The lower dust suction pipe 69 is also connected to an external negative pressure air source, and is used to form a negative pressure airflow below the FRP material to remove dust on the lower surface of the FRP material.

[0099] The dust removal conveyor 67 is arranged at the rear side of the trimming and longitudinal cutting machine, and a power roller 671 is arranged on the dust removal conveyor 67 to drive the trimmed FRP material to be conveyed to the rear cutting machine 68 and the discharging unit 7. A dust removal brush is arranged at the feeding end of the dust removal conveyor 67 to brush off the dust on the FRP material.

[0100] The cutter 68 is arranged at the rear side of the dust removal conveyor 67, and is started when the FRP sheet needs to be produced, and cuts the FRP strips into finished FRP sheets of a set length. When the FRP strips are produced, the cutter 68 does not work, and the FRP material directly passes through the cutter 68. The cutter 68 can use an existing commercial product.

[0101] In a preferred embodiment of the glass fiber reinforced plastic continuous production line of the present application, as Figures 13 to 15 As shown, the trimming mechanism 62 includes a trimming mechanism sliding seat 621, a transverse driving screw 622, a lifting mounting seat 623, a lifting driving screw 624, a trimming mounting frame 625, a dust-free cutter 626, a trimming pad wheel 627 and a trimming driving motor 628. A slider adapted to the transverse sliding rod is provided on the trimming mechanism sliding seat 621, and the slider is slidably installed between the bottom connecting frame 612 and the top connecting frame 613 through the cooperation of the slider and the transverse sliding rod. The transverse driving screw 622 is rotatably connected to the side wall of the trimming cover 614, and is threadedly connected to the trimming mechanism sliding seat 621. A hand wheel is provided at the end of the transverse driving screw 622 located outside the trimming cover 614, and the lateral position of the trimming mechanism sliding seat 621 can be adjusted by rotating the hand wheel.

[0102] A vertically arranged sliding rod is arranged on the trimming mechanism sliding seat 621, and a sliding block adapted to the sliding rod is arranged on the lifting mounting seat 623, and is slidably installed on the trimming mechanism sliding seat 621 through the cooperation of the sliding block and the sliding rod. The lifting driving screw 624 is rotatably connected to the trimming mechanism sliding seat 621, and is threadedly connected to the lifting mounting seat 623. By rotating the handwheel arranged on the lifting driving screw 624, the lifting mounting seat 623 can be driven to slide up and down relative to the trimming mechanism sliding seat 621.

[0103] The trimming mounting frame 625 is installed on the lifting mounting seat 623. An arc-shaped adjustment hole is provided on the trimming mounting frame 625. By adjusting the fixing position of the connecting bolt in the arc-shaped adjustment hole, the rotation angle of the trimming mounting frame 625 on the lifting mounting seat 623 can be adjusted.

[0104] The dust-free cutter 626 and the trimming wheel 627 are both rotatably connected to the trimming mounting frame 625 via a rotating shaft. The dust-free cutter 626 is located above the FRP material, and the trimming wheel 627 is located at a corresponding position below the FRP material. The blade on the circumference of the dust-free cutter 626 contacts the side of the trimming wheel 627. The trimming drive motor 628 is fixed to the trimming mounting frame 625 and is drivingly connected to the trimming wheel 627. Interlocking gears that mesh with each other are provided on the rotating shafts of the dust-free cutter 626 and the trimming wheel 627. The trimming drive motor 628 can drive the dust-free cutter 626 and the trimming wheel 627 to rotate in opposite directions to trim and cut the side of the FRP material.

[0105] A side material winding device 629 can also be set on both sides of the rear end of the trimming and longitudinal cutting machine. The side material winding device 629 is provided with a winding wheel driven by a motor. The side material of the fiberglass material cut off by the dust-free cutter 626 is wound on the winding wheel for collection and processing through the rotation of the winding wheel.

[0106] There are usually one to three longitudinal shearing mechanisms 63, each of which includes a segmentation sliding seat 631, a segmentation sliding screw 632, a segmentation mounting frame 633, a lifting hydraulic cylinder 634, a segmentation driving motor 635 and a segmentation cutter 636. Transverse sliding blocks are provided at both ends of the segmentation sliding seat 631, and the segmentation sliding seat 631 is installed on the transverse sliding rods at the top of the two top connecting frames 613 through the transverse sliding blocks, so that it can slide horizontally on the transverse sliding rod relative to the top connecting frame 613.

[0107] When one longitudinal shearing mechanism 63 is provided, one segmentation sliding screw 632 is provided; when two or three longitudinal shearing mechanisms 63 are provided, two segmentation sliding screws 632 are provided. The segmentation sliding screw 632 is rotatably connected to the side wall of the trimming cover 614, and a sliding screw handwheel is provided at the end of the segmentation sliding screw 632 located outside the trimming cover 614, and the other end extends along a top connecting frame 613 and is threadedly connected to the segmentation sliding seat 631. When two or three longitudinal shearing mechanisms 63 are provided, the two segmentation sliding screws 632 are respectively provided on opposite sides of the trimming cover 614 and are respectively threadedly connected to the segmentation sliding seats 631 on both sides. When three longitudinal shearing mechanisms 63 are provided, after adjusting the position of the middle split sliding seat 631, the middle split sliding seat 631 is fixed to a fixed position on the top connecting frame 613 by tightening the bolts, and then the split sliding seats 631 on both sides are driven to move horizontally by rotating the sliding screw handwheels on both sides to adjust the horizontal positions of the split sliding seats 631 on both sides.

[0108] One end of the segmentation mounting frame 633 is rotatably connected to the end of one end of the segmentation sliding seat 631, and the other end is fixedly connected to the cylinder body of the lifting hydraulic cylinder 634, and the end of the piston rod of the lifting hydraulic cylinder 634 is against the segmentation sliding seat 631. The segmentation drive motor 635 is fixed below the middle of the segmentation mounting frame 633, and the segmentation cutter 636 is fixed on the output shaft of the segmentation drive motor 635. When the segmentation drive motor 635 rotates, it can drive the segmentation cutter 636 to rotate, and the glass fiber reinforced plastic material below is longitudinally segmented, and a glass fiber reinforced plastic material with a larger width is segmented into several glass fiber reinforced plastic materials with smaller widths. By controlling the lifting hydraulic cylinder 634 to contract, the segmentation cutter 636 can be lifted away from the glass fiber reinforced plastic material, so that it can be determined whether to segment the glass fiber reinforced plastic material according to needs. By adjusting the lateral position of the segmentation sliding seat 631, the position for segmenting the glass fiber reinforced plastic material can be adjusted.

[0109] An embodiment of the continuous production method of FRP of the present application uses the continuous production line of FRP of the present application to produce FRP products, and the production method comprises the following steps: S1. Laying the bottom film: The bottom film 91 is drawn out from the material roll on the feeding support 111 by the bottom film power roller group 113, flattened by the bottom film bending shaft 112, and then conveyed backward along the production line.

[0110] S2, applying gel coat: applying resin glue to the upper surface of the base film 91 by gel coat applying mechanism 12 to form gel coat, and heating the resin glue on the base film 91 by gel coat curing unit 2 to cure the resin glue into a semi-cured gel coat.

[0111] S3, laying the lower surface felt and applying glue: the lower surface felt 93 installed on the lower surface felt reel frame 311 is first extracted by the lower surface felt laying pair of rollers 313, and after being guided and unfolded by the lower surface felt guide rollers 312, the lower surface felt 93 is laid flat on the gel coat of the base film 91 by the lower surface felt laying pair of rollers 313. The resin glue is applied on the upper side of the base film 91 by the lower surface felt glue coating mechanism 32, so as to form a resin glue layer of a set thickness on the upper side of the base film 91.

[0112] Specifically, the lower surface felt 93 may be laid on the gel coat of the base film 91 first, and then the resin glue may be coated on the lower surface felt 93. Alternatively, the resin glue may be coated on the gel coat of the base film 91, and then the lower surface felt 93 may be laid on the resin glue layer. When coating the resin glue, the resin glue is usually spread in a certain range on the base film 91 or the lower surface felt 93 by the glue injection device 13, the flow range of the resin glue is limited by the gel coat side baffle 124, the resin glue on the base film 91 or the lower surface felt 93 is scraped flat by the gel coat scraping device 122 to form a uniform resin glue layer, and the glue scraping height of the gel coat scraping device 122 is controlled by the glue scraping flip device 123, thereby controlling the thickness of the resin glue layer on the lower surface felt 93.

[0113] S4. Laying the main fiber layer and the upper surface felt: According to the design requirements, one or more main fiber layers 94 are laid on the lower surface felt 93 using the main fiber layer laying device 331, and then a layer of upper surface felt 95 is laid on the main fiber layer 94 using the upper surface felt laying device 332, to form a fiber reinforcement layer with a symmetrical structure, which includes, from bottom to top, the lower surface felt 93, the main fiber layer 94 and the upper surface felt 95.

[0114] S5. Resin glue infiltration: The fiber-reinforced layer and the resin layer coated on the lower surface felt 93 are squeezed from below the bottom film 91 and above the upper surface felt 95 by means of the infiltration rollers 334, the first infiltration roller 335 and the second infiltration roller 336 with different structures, respectively, to form a composite material layer formed by the resin glue infiltrating the fiber-reinforced layer. The infiltration rollers 334, the first infiltration roller 335 and the second infiltration roller 336 with different structures can extrude the composite material layer in different directions, so that the resin glue therein flows in different directions, so that the resin glue fully infiltrates the lower surface felt 93, the main fiber layer 94 and the upper surface felt 95, and is evenly distributed in the lower surface felt 93, the main fiber layer 94 and the upper surface felt 95, so as to ensure the uniformity of the internal structure of the composite material layer.

[0115] S6, glue filling and top film laying: top film 92 is laid on the upper surface felt 95 by using top film laying mechanism 42, and while laying the top film 92, a certain amount of resin glue is added between the upper surface felt 95 and the top film 92 by using glue injection device 13. The top film laying roller 423 is used to squeeze the top film 92 from above the top film 92, so that the resin glue added on the upper surface felt 95 flows, fills the concave area above the upper surface felt 95, and covers the fiber material of the upper surface felt 95, together with the gel coat under the small surface felt 93, to ensure that the reinforcing fibers do not expose the surface of the composite material layer. The distance between the top film laying roller 423 and the film support roller 422 is limited by the glass fiber reinforced plastic thickness setting device 426 to ensure the thickness of the composite material layer after being squeezed by the top film laying roller 423 and the film support roller 422.

[0116] S7, heating and curing: the composite material layer between the bottom film 91 and the top film 92 is heated by the heating and curing unit 5, so that the resin glue therein is cured to form a glass fiber reinforced plastic material.

[0117] S8, trimming and cutting: trimming mechanism 62 is used to trim the parts on both sides of the FRP material that are not fully infiltrated by the resin glue to form FRP material strips with a width that meets the design requirements, and the FRP material strips are rolled up to obtain FRP product rolls. The FRP material strips can also be longitudinally divided by longitudinal cutting mechanism 63 to obtain multiple FRP material strips with smaller widths. If FRP sheets are required, the FRP material strips are cut into a set length by cutting machine 68 to obtain finished FRP sheets.

[0118] In the description of the present invention, the description with reference to the terms "one embodiment", "specific embodiment", "preferred embodiment" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In the present invention, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0119] 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 continuous production line of glass fiber reinforced plastics, characterized by: The invention comprises a base film feeding and gluing unit (1), a gel coat curing unit (2), a fiber layer laying and gluing unit (3), a glue patching and laminating unit (4), a heating and curing unit (5) and a trimming and cutting unit (6) which are arranged in sequence; the base film feeding and gluing unit (1) can introduce a base film (91) and scrape a layer of gel coat on the base film (91); the gel coat curing unit (2) can heat the gel coat so that the gel coat is in a semi-cured state; the fiber layer laying and gluing unit (3) can lay a fiber layer on the gel coat and add resin glue, and make the resin glue infiltrate the fiber layer; the glue patching and laminating unit (4) can lay a top film (92) on the fiber layer and add resin glue between the fiber layer and the top film (92) to form a composite material layer of a set thickness; after heating and curing by the heating and curing unit (5) and trimming and cutting by the trimming and cutting unit (6), a finished glass fiber reinforced plastic is formed.

2. The continuous production line of glass fiber reinforced plastics according to claim 1 is characterized in that: The fiber layer laying and gluing unit (3) comprises a lower surface felt laying mechanism (31), a lower surface felt gluing mechanism (32) and an upper layer fiber laying and impregnating mechanism (33); the lower surface felt laying mechanism (31) and the lower surface felt gluing mechanism (32) can first lay the lower surface felt (93) on the gel coat and then add a set thickness of resin glue on the lower surface felt (93), or first add a set thickness of resin glue on the gel coat and then lay the lower surface felt (93) on the resin glue; the upper layer fiber laying and impregnating mechanism (33) can lay the main fiber layer (94) and the upper surface felt (95) on the lower surface felt (93) and allow the resin glue to impregnate the main fiber layer (94) and the surface felt.

3. The continuous production line of glass fiber reinforced plastics according to claim 1 is characterized in that: The base film feeding and gluing unit (1) comprises a base film feeding mechanism (11) and a gel coat scraping mechanism (12). The base film feeding mechanism (11) is capable of flattening the base film (91) and conveying it backwards. The gel coat scraping mechanism (12) comprises a scraping support (121), a gel coat scraping device (122), a glue scraping flipping device (123), a side glue baffle (124) and a glue injection device (13). The scraping support (121) is arranged at the rear of the base film feeding mechanism (11), and comprises a scraping platform (1211) arranged transversely below the base film (91), two support side frames (1212) arranged on both sides of the scraping platform (1211), and two support side frames (1212) arranged on the two support side frames (1211). 12) between the front ends of the two side frames (1212), the gel coating device (122) being arranged between the rear ends of the two support side frames (1212) and being capable of adjusting the distance between the device and the coating platform (1211) under the drive of the gel coating flipping device (123), two side rubber baffles (124) being arranged, the two side rubber baffles (124) being mounted on the lateral support rod (1213), being located on both sides of the base film (91), and being in contact with the base film (91), the glue injection device (13) being arranged above the coating support (121) and being capable of adding gel coating glue to the base film (91) between the two side rubber baffles (124).

4. The continuous production line of glass fiber reinforced plastics according to claim 3 is characterized in that: The rubber scraping device (122) comprises a rubber scraper (1221), a rubber sheet gantry support (1222) and a middle support screw (1223); the rubber sheet gantry support (1222) is fixed above both ends of the rubber scraper (1221); the middle support screw (1223) is arranged in the middle of the rubber scraper (1221), between the rubber scraper (1221) and the rubber sheet gantry support (1222); the rubber scraping flipping device (123) comprises a rocker (1231), a rocker gear (1232), a first intermediate gear (1233), a second intermediate gear (1234), a flipping lever gear (1235) and a flipping lever (1236); the rocker (1231 ) is rotatably connected to the support side frame (1212) on one side, the rocker gear (1232) is fixed on the rotating shaft of the rocker (1231), the first intermediate gear (1233) is rotatably connected to the support side frame (1212) and meshes with the rocker gear (1232), the second intermediate gear (1234) is fixed on the first intermediate gear (1233) and meshes with the flip rod gear (1235), the flip rod gear (1235) is fixed on the flip rod (1236), the flip rod (1236) is rotatably connected to the support side frame (1212), and the gel coat scraper (1221) is fixed on the flip rod (1236).

5. The continuous production line of FRP according to claim 1 is characterized in that: The glue filling and film coating unit (4) comprises a top film unfolding mechanism (41), a top film laying mechanism (42) and a glue injection device (13) arranged at the front side of the top film laying mechanism (42); the top film unfolding mechanism (41) comprises an unfolding mechanism mounting frame (411), a top film fixing shaft (412), a top film shaft mounting seat (413), a top film guide roller (414), a guide roller mounting seat (415) and a top film bending roller (416); the unfolding mechanism mounting frame (411) is arranged across the bottom film (91) on both sides of the bottom film (91) in the conveying direction; the top film shaft mounting seat (413) is arranged on the unfolding mechanism mounting frame (411) and the top film fixing shaft (412). The top film (92) is mounted on a mechanism mounting frame (411) and is capable of adjusting the front, rear, left, and right positions of the top film shaft mounting seat (413). Both ends of the top film fixing shaft (412) are rotatably mounted on the top film shaft mounting seat (413). The guide roller mounting seat (415) is mounted on the unfolding mechanism mounting frame (411) and is capable of adjusting the front, rear, left, and right positions of the guide roller mounting seat (415). Both ends of the top film guide roller (414) are rotatably mounted on the guide roller mounting seat (415). The reel of the top film (92) is fixed on the top film fixing shaft (412). The top film (92) passes around the top film guide roller. (414) and the top film bending roller (416) are transported to the top film laying mechanism (42); the top film laying mechanism (42) includes a film laying mechanism mounting frame (421), a film covering support roller (422), a top film laying roller (423), a laying roller mounting arm (424), a laying roller pressure block (425) and a glass fiber reinforced plastic thickness setting device (426), the film laying mechanism mounting frame (421) spans the bottom film (91) and is arranged on both sides of the bottom film (91) conveying direction, the film covering support roller (422) crosses the bottom of the bottom film (91) and is rotatably connected to the film laying mechanism mounting frame (421), the One end of the covering roller mounting arm (424) is rotatably connected to the film laying mechanism mounting frame (421), and the other end is fixedly connected to the covering roller pressure block (425); the top film covering roller (423) is rotatably connected to the covering roller mounting arm (424); the FRP thickness setting device (426) is arranged between the covering roller mounting arm (424) and the film laying mechanism mounting frame (421) so as to be able to adjust the gap size between the covering film support roller (422) and the top film covering roller (423); the glue injection device (13) is able to add resin glue between the fiber layer and the top film (92).

6. The continuous production line of FRP according to claim 5, characterized in that: The FRP thickness setting device (426) comprises a thickness setting motor (4261), a worm gear screw lift (4262), a rod end lifting block (4263), a top block shaft (4264) and a thickness setting top block (4265). The thickness setting motor (4261) is fixed on the worm gear screw lift (4262) and is connected to the worm drive of the worm gear screw lift (4262). The worm gear screw lift (4262) is fixed on the film laying mechanism mounting frame (421). The rod end lifting block (4263) is fixed to the end of the screw of the worm gear screw lift (4262). The top block shaft (4264) is fixedly connected to the thickness setting top block (4265) and is rotatably connected to the rod end lifting block (4263). The thickness setting top block (4265) supports the laying roller mounting arm (424).

7. The continuous production line of glass fiber reinforced plastics according to claim 3 or 5, characterized in that: The glue injection device (13) comprises a glue injection device mounting frame (131), a glue injection seat (132), a lateral driving member (133), a glue injection barrel (134), a glue injection motor (135), a glue injection wheel (136), a glue inlet hose (137), a curing agent hose (138) and a glue outlet hose (139); the glue injection device mounting frame (131) is laterally arranged above the base film (91); the glue injection seat (132) is slidably arranged on the glue injection device mounting frame (131) and is capable of The glue injection barrel (134) and the glue injection motor (135) are both fixed on the glue injection seat (132), the glue injection wheel (136) is fixed on the output shaft of the glue injection motor (135) and is located in the glue injection barrel (134), the glue inlet hose (137) and the curing agent hose (138) are respectively connected to the lower part of the glue injection barrel (134), and the glue outlet hose (139) is arranged on the upper part of the glue injection barrel (134).

8. The continuous production line of FRP according to claim 1 is characterized in that: The upper fiber laying and impregnation mechanism (33) comprises a main fiber layer laying device (331), an upper surface felt laying device (332), an impregnation mechanism mounting frame (333), an impregnation roller (334), a first impregnation pressure roller (335) and a second impregnation pressure roller (336). The main fiber layer laying device (331) is provided with a plurality of them, each of which is capable of laying a layer of main fiber layer (94) on top of the lower surface felt (93). The upper surface felt laying device (332) is provided at the rear end of the main fiber layer laying device (331) and is capable of laying a layer of the upper surface felt (95) on top of the main fiber layer (94). The impregnation mechanism mounting frame (333) is provided at the rear end of the main fiber layer laying device (331). At the rear end of the upper surface felt covering device (332) and on both sides of the bottom film (91), the impregnation roller (334) passes through the bottom of the bottom film (91), and both ends are rotatably connected to the impregnation mechanism mounting frame (333); the first impregnation pressing roller (335) and the second impregnation pressing roller (336) are arranged above the upper surface felt (95), respectively arranged on both sides of the impregnation roller (334), and both ends are rotatably connected to the impregnation mechanism mounting frame (333), and the installation height on the impregnation mechanism mounting frame (333) can be adjusted; the impregnation roller (334), the first impregnation pressing roller (335) and the second impregnation pressing roller (336) each use one of a bare roller, an annular roller and a strip roller.

9. The continuous production line of FRP according to claim 1, characterized in that: The trimming and cutting unit (6) comprises a trimming and longitudinal cutting machine, a dust removal conveyor (67) and a cutting machine (68); the trimming and longitudinal cutting machine comprises a trimming stand (61), a trimming mechanism (62), a longitudinal cutting mechanism (63), a trimming roller (64), an electrostatic processor (65) and a dust removal air nozzle (66); the trimming stand (61) comprises a trimming workbench (611) arranged transversely below the base film (91) and a trimming cover (614) arranged on the trimming workbench (611); a bottom connecting frame (612) and a top connecting frame (613) connected between the side walls of the trimming cover (614) are arranged in the trimming cover (614); the trimming mechanism (62) is slidably arranged The trimming roller (64) is arranged between the bottom connecting frame (612) and the top connecting frame (613); the longitudinal cutting mechanism (63) is slidably arranged on the top connecting frame (613); the two ends of the trimming roller (64) are rotatably connected to the rear end of the trimming cover (614) and supported below the bottom film (91); the electrostatic processor (65) is arranged below the bottom film (91) and on the rear side of the trimming roller (64); the dust removal air nozzle (66) is arranged above the bottom film (91) and is arranged corresponding to the electrostatic processor (65); the dust removal conveyor (67) is arranged on the rear side of the trimming longitudinal cutting machine; and the cutting machine (68) is arranged on the rear side of the dust removal conveyor (67).

10. The continuous production line of glass fiber reinforced plastics according to claim 9, characterized in that: The trimming mechanism (62) comprises a trimming mechanism sliding seat (621), a transverse driving screw (622), a lifting mounting seat (623), a lifting driving screw (624), a trimming mounting frame (625), a dust-free cutter (626), a trimming pad wheel (627) and a trimming driving motor (628); the trimming mechanism sliding seat (621) is slidably mounted between the bottom connecting frame (612) and the top connecting frame (613), and can be driven by the transverse driving screw (622) to move upward and downward on the bottom connecting frame (612). The lifting mounting seat (623) is slidably mounted on the trimming mechanism sliding seat (621) and can slide up and down under the drive of the lifting drive screw (624); the trimming mounting frame (625) is mounted on the lifting mounting seat (623) and can adjust the rotation angle on the lifting mounting seat (623); the dust-free cutter (626) and the trimming pad wheel (627) are rotatably connected to the trimming mounting frame (625). The dust-free cutter (626) and the trimming wheel (627) are arranged on the upper and lower sides of the bottom film (91) respectively, and can rotate in opposite directions under the drive of the trimming drive motor (628); the longitudinal cutting mechanism (63) comprises a segmentation sliding seat (631), a segmentation sliding screw (632), a segmentation mounting frame (633), a lifting hydraulic cylinder (634), a segmentation drive motor (635) and a segmentation cutter (636); the segmentation sliding seat (631) is slidably mounted on the top connecting frame (61 3), and can move laterally under the drive of the splitting sliding screw (632), one end of the splitting mounting frame (633) is rotatably connected to the splitting sliding seat (631), the lifting hydraulic cylinder (634) is arranged between the other end of the splitting mounting frame (633) and the splitting sliding seat (631), the splitting drive motor (635) is fixed below the splitting mounting frame (633), and the splitting cutter (636) is fixed on the output shaft of the splitting drive motor (635).

11. A method for continuous production of glass fiber reinforced plastics, characterized in that: The steps include: S1, laying the bottom film: unfolding and laying the bottom film (91) flat, and moving it backward along the production line; S2, applying a gel coat: applying a resin glue on the base film (91) by scraping, and heating and curing to form a semi-cured gel coat; S3, laying the lower surface felt and adding glue: laying the lower surface felt (93) and a resin layer of a set thickness on the gel coat in sequence; S4, laying the main fiber layer and the upper surface felt: laying the main fiber layer (94) and the upper surface felt (95) layer by layer on the lower surface felt (93) according to design requirements; S5, resin glue infiltration: pressing the upper surface felt (95) so that the resin glue fully infiltrates the lower surface felt (93), the main fiber layer (94) and the upper surface felt (95); S6, glue filling and top film laying: adding resin glue to the upper surface felt (95), unfolding the top film (92) and laying it on the upper surface felt (95), and pressing it to a set thickness; S7, heating and curing: heating the composite material after laying the top film (92) so that the resin glue is cured to form a glass fiber reinforced plastic material; S8. Trimming and cutting: Cut off the edges of the FRP material on both sides according to the design requirements, and cut it into the set length to obtain the FRP finished product.

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