Extruded plate production line coated with UD belt

Abstract

The utility model discloses an extruded plate production line coated with a UD belt. The extruded plate production line comprises a first extruder, a second extruder, a third extruder, a forming die, a first coating die, a second coating die, a first shaping table, a second shaping table, an unwinding machine, a pressing machine and a traction machine, wherein the forming mold is connected to the first extruding machine, the first extruding machine is used for extruding a base layer material into the forming mold and then extruding the base layer material through the forming mold to obtain a base material, and the base material sequentially penetrates through the first shaping table and the first coating mold; the first forming table is used for cooling and forming the base material, the first coating mold is connected to the second extruder, and the second extruder is used for extruding glue through the first coating mold and coating the glue on the surface of the base material. According to the utility model, the extrusion plate coated with the UD belt can be produced, and the extrusion plate has the advantages of light weight, high strength and corrosion resistance, and can be used as a scaffold pedal.

Description

Technical Field

[0001] The utility model relates to a production line for extruded plates coated with UD belts. Background Art

[0002] Existing steel scaffolding pedals have the disadvantages of being heavy and easy to rust, which causes many inconveniences in actual use. Currently, there is an extruded sheet made of PP material that has the advantages of being light, strong and corrosion-resistant, and can be used as a scaffolding pedal. The extruded sheet includes a substrate located on the inner side, a UD tape coated on the outer side of the substrate, and a surface coating layer located on the outer side. However, the existing extrusion production line cannot produce such an extruded sheet coated with a UD tape. For example, the Chinese patent with publication number CN107866980A discloses a PP co-extruded foamed thick plate extrusion production line, which cannot produce such an extruded sheet coated with a UD tape. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide an extruded plate production line coated with a UD belt, which can produce an extruded plate coated with a UD belt. The extruded plate has the advantages of light weight, high strength and corrosion resistance, and can be used as a scaffolding pedal.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a production line for extruded sheets coated with UD tapes, which includes a first extruder, a second extruder, a third extruder, a forming die, a first coating die, a second coating die, a first shaping table, a second shaping table, an unwinding machine, a laminating machine and a traction machine;

[0005] The forming die is connected to the first extruder, and the first extruder is used to extrude the base material into the forming die and then extrude the base material through the forming die;

[0006] The substrate passes through the first shaping table and the first coating mold in sequence, the first shaping table is used to cool the substrate into shape, the first coating mold is connected to the second extruder, and the second extruder is used to extrude glue into the first coating mold and then extrude the glue through the first coating mold to coat the surface of the substrate;

[0007] The substrate with glue coated on the surface passes through the laminating machine, the unwinding machine is equipped with an upper material roll and a lower material roll, the UD tape released from the upper material roll extends into the laminating machine and is located above the substrate, and the UD tape released from the lower material roll extends into the laminating machine and is located below the substrate, and the laminating machine is used to press the UD tape on the upper and lower surfaces of the substrate to obtain a semi-finished plate;

[0008] The semi-finished plate passes through the second coating die, the second coating die is connected to the third extruder, and the third extruder is used to extrude the surface material into the second coating die and then extrude the surface material through the second coating die to coat the outer side of the semi-finished plate to obtain a finished plate;

[0009] The finished plate passes through the second shaping table and the traction machine in sequence. The second shaping table is used to cool and shape the finished plate, and the traction machine is used to traction the finished plate to move.

[0010] Furthermore, the forming die, the first shaping table, the first covering die, the pressing machine, the unwinding machine, the second covering die, the second shaping table and the traction machine are arranged in sequence from front to back.

[0011] Further provided is a specific structure of the first covering mold and the second covering mold, wherein the first covering mold and the second covering mold respectively include a mold body, wherein the mold body is provided with a plate channel, a feed port, an upper material guide channel, a lower material guide channel, a first distribution channel, a second distribution channel, a third distribution channel, a fourth distribution channel, an upper covering cavity and a lower covering cavity;

[0012] The plate channel extends through the mold body;

[0013] The upper cladding cavity is located above the plate channel and communicates with the upper end of the plate channel;

[0014] The lower cladding cavity is located below the plate channel and communicates with the lower end of the plate channel;

[0015] One end of the upper material guiding channel is communicated with the feed port, the other end of the upper material guiding channel is communicated with the upper end of the first distribution channel and the upper end of the second distribution channel respectively, the lower end of the first distribution channel is communicated with the left end of the upper cladding cavity, and the lower end of the second distribution channel is communicated with the right end of the upper cladding cavity;

[0016] One end of the lower material guiding channel is communicated with the feed port, the other end of the lower material guiding channel is communicated with the lower end of the third distribution channel and the lower end of the fourth distribution channel respectively, the upper end of the third distribution channel is communicated with the left end of the lower covering cavity, and the upper end of the fourth distribution channel is communicated with the right end of the lower covering cavity.

[0017] A specific structure of the unwinding machine is further provided, wherein the unwinding machine comprises a frame, an upper unwinding shaft, a lower unwinding shaft, at least one upper guide roller and at least one lower guide roller;

[0018] The upper unwinding shaft and the lower unwinding shaft are respectively rotatably connected to the frame, the upper unwinding shaft is mounted with the upper material roll, and the lower unwinding shaft is mounted with the lower material roll;

[0019] The upper guide roller is rotatably connected to the frame, and the UD tape released from the loading roll is wound around the upper guide roller and then extends into the laminating machine and is located above the substrate;

[0020] The lower guide roller is rotatably connected to the frame, and the UD tape released from the unloading roll is wound around the lower guide roller and then extends into the laminating machine and is located below the substrate.

[0021] In order to further heat the UD tape, the unwinding machine further includes an upper heating device and a lower heating device;

[0022] The upper heating device is connected to the frame, and the UD tape released from the upper material roll passes through the upper heating device and then extends into the laminating machine;

[0023] The lower heating device is connected to the frame, and the UD tape released from the unloading roll passes through the lower heating device and then extends into the laminating machine.

[0024] A specific structure of the upper heating device and the lower heating device is further provided. The upper heating device and the lower heating device respectively include an upper heating plate and a lower heating plate. A heating channel for the UD tape to pass through is provided between the upper heating plate and the lower heating plate.

[0025] A specific structure of the pressing machine is further provided, wherein the pressing machine comprises a fixed frame, a sliding seat, an upper pressing roller, a lower pressing roller and a pressing cylinder;

[0026] The sliding seat is vertically slidably connected to the fixing frame;

[0027] The upper pressing roller is rotatably connected to the sliding seat, the lower pressing roller is rotatably connected to the fixing frame, the substrate with glue coated on the surface passes between the upper pressing roller and the lower pressing roller, the UD tape released from the upper material roll is wound around the upper guide roller and then passes between the upper pressing roller and the substrate, and the UD tape released from the lower material roll is wound around the lower guide roller and then passes between the lower pressing roller and the substrate;

[0028] The pressing cylinder is installed on the fixing frame, and is connected to the sliding seat and used to drive the sliding seat to move downward, thereby closing the upper pressing roller and the lower pressing roller and pressing the UD tape on the upper and lower surfaces of the substrate.

[0029] Furthermore, the laminating machine also includes a driving motor connected to the fixing frame, and the driving motor is connected to the lower pressing roller and is used to drive the lower pressing roller to rotate.

[0030] Furthermore, the traction machine is located behind the second shaping table, and an embossing machine is also arranged between the traction machine and the second shaping table.

[0031] Furthermore, the UD tape coated extruded sheet production line also includes a cutting machine located behind the tractor and a turning rack located behind the cutting machine.

[0032] After adopting the above technical solution, the substrate extruded from the forming die passes through the first calibrating table and is cooled and formed, and then the substrate passes through the first coating die, and the first coating die extrude and coat the glue on the surface of the substrate, and then the substrate coated with glue extends to the laminating machine. At the same time, the UD tape released from the upper material roll extends to the laminating machine and is located above the substrate, and the UD tape released from the lower material roll extends to the laminating machine and is located below the substrate. The laminating machine presses the two layers of UD tape on the upper and lower surfaces of the substrate respectively to obtain a semi-finished sheet. The semi-finished sheet passes through the second coating die, and the second coating die extrude and coat the surface material on the outside of the semi-finished sheet to obtain a finished sheet, and then the finished sheet passes through the second calibrating table to be cooled and formed and then passes through the traction machine, and the traction machine can traction the finished sheet to move. Among them, the finished plate includes a substrate located on the inner side, a UD tape coated on the outer side of the substrate, and a surface coating layer located on the outer side. Therefore, the production line of the embodiment of the present application can produce extruded plates coated with UD tapes. Such extruded plates coated with UD tapes have the advantages of light weight, high strength and corrosion resistance, and can be used as scaffolding pedals. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a front view of the extrusion sheet production line for coating UD tape of the utility model;

[0034] Figure 2 It is a top view of the extrusion sheet production line for coating UD tape of the utility model;

[0035] Figure 3 It is a schematic diagram of the structure of the first coating mold and the second coating mold of the utility model;

[0036] Figure 4 It is a structural schematic diagram of the unwinding machine and the pressing machine of the utility model. DETAILED DESCRIPTION

[0037] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings.

[0038] like Figures 1 to 4 As shown, a UD tape coated extrusion sheet production line includes a first extruder 1, a second extruder 2, a third extruder 3, a forming die 4, a first coating die 5, a second coating die 6, a first shaping table 7, a second shaping table 8, an unwinding machine 9, a laminating machine 10 and a traction machine 11;

[0039] The molding die 4 is connected to the first extruder 1, and the first extruder 1 is used to extrude the base material into the molding die 4 and then extrude the base material through the molding die 4;

[0040] The substrate passes through the first shaping table 7 and the first coating mold 5 in sequence, the first shaping table 7 is used to cool the substrate into shape, the first coating mold 5 is connected to the second extruder 2, and the second extruder 2 is used to squeeze the glue into the first coating mold 5 and then extrude the glue through the first coating mold 5 to coat the surface of the substrate;

[0041] The substrate with the surface coated with glue passes through the laminating machine 10, and the unwinding machine 9 is equipped with an upper material roll 12 and a lower material roll 13. The UD tape 14 released from the upper material roll 12 extends into the laminating machine 10 and is located above the substrate, and the UD tape 14 released from the lower material roll 13 extends into the laminating machine 10 and is located below the substrate. The laminating machine 10 is used to press the UD tape 14 on the upper and lower surfaces of the substrate to obtain a semi-finished plate; wherein, after the UD tape 14 is pressed on the substrate, it is adhered to the substrate by glue;

[0042] The semi-finished plate passes through the second coating die 6, the second coating die 6 is connected to the third extruder 3, the third extruder 3 is used to extrude the surface material into the second coating die 6, and then extrude the surface material through the second coating die 6 to coat the outer side of the semi-finished plate to obtain a finished plate; wherein the surface material is located at the outermost side of the finished plate and forms a surface coating layer;

[0043] The finished plate passes through the second shaping table 8 and the traction machine 11 in sequence. The second shaping table 8 is used to cool and shape the finished plate, and the traction machine 11 is used to traction the finished plate to move. Specifically, the substrate extruded from the forming die 4 passes through the first shaping table 7 and is cooled and shaped, and then the substrate passes through the first coating die 5. The first coating die 5 extrude and coat the glue on the surface of the substrate, and then the substrate coated with glue extends to the press machine 10. At the same time, the UD tape 14 released from the upper material roll 12 extends to the press machine 10 and is located above the substrate, and the UD tape 14 released from the lower material roll 13 extends to the press machine 10 and is located below the substrate. The press machine 10 presses the two layers of UD tape 14 on the upper and lower surfaces of the substrate respectively to obtain a semi-finished plate. The semi-finished sheet passes through the second coating mold 6, and the second coating mold 6 extrude and coat the surface material on the outside of the semi-finished sheet to obtain a finished sheet. Then the finished sheet passes through the second shaping table 8 to be cooled and formed and then passes through the traction machine 11. The traction machine 11 can pull the finished sheet to move. Among them, the finished sheet includes a substrate located on the inner side, a UD tape 14 coated on the outside of the substrate, and a surface coating layer located on the outside. Therefore, the production line of the embodiment of the present application can produce extruded sheets coated with UD tapes. Such extruded sheets coated with UD tapes have the advantages of light weight, high strength and corrosion resistance, and can be used as scaffolding pedals. Among them, the UD tape 14 is also called UD glass fiber tape, which is an unwoven fiber tape, and the base material and the surface material can both be PP glass fiber materials.

[0044] like Figure 1 , 2 As shown, the forming mold 4, the first shaping table 7, the first coating mold 5, the laminating machine 10, the unwinding machine 9, the second coating mold 6, the second shaping table 8 and the traction machine 11 are arranged in sequence from front to back; wherein, the first shaping table 7 and the second shaping table 8 function to perform negative pressure shaping and water cooling molding.

[0045] like Figure 3 As shown, the first coating mold 5 and the second coating mold 6 may respectively include a mold body 15, in which a plate channel 16, a feed port 17, an upper material guide channel 18, a lower material guide channel 19, a first distribution channel 20, a second distribution channel 21, a third distribution channel 22, a fourth distribution channel 23, an upper coating cavity 24 and a lower coating cavity 25 are provided;

[0046] The plate channel 16 passes through the mold body 15;

[0047] The upper covering cavity 24 is located above the plate channel 16 and communicates with the upper end of the plate channel 16;

[0048] The lower cladding cavity 25 is located below the plate channel 16 and communicates with the lower end of the plate channel 16;

[0049] One end of the upper material guiding channel 18 is communicated with the feed port 17, and the other end of the upper material guiding channel 18 is communicated with the upper end of the first distribution channel 20 and the upper end of the second distribution channel 21 respectively, the lower end of the first distribution channel 20 is communicated with the left end of the upper cladding cavity 24, and the lower end of the second distribution channel 21 is communicated with the right end of the upper cladding cavity 24;

[0050] One end of the lower material guide channel 19 is connected to the feed port 17, and the other end of the lower material guide channel 19 is respectively connected to the lower end of the third distribution channel 22 and the lower end of the fourth distribution channel 23, the upper end of the third distribution channel 22 is connected to the left end of the lower coating cavity 25, and the upper end of the fourth distribution channel 23 is connected to the right end of the lower coating cavity 25; specifically, the substrate passes through the first calibrating table 7, is cooled and formed, and then passes through the plate channel 16 in the first coating mold 5, and the feed port 17 in the first coating mold 5 is connected to the discharge port of the second extruder 2. In the first coating mold 5, the glue is squeezed into the feed port 17 by the second extruder 2 and then diverted to the upper material guide channel 18 and the lower material guide channel 19. The glue in the upper material guide channel 18 is divided into the first distribution channel 20 and the second distribution channel 21, and then the glue in the first distribution channel 20 and the second distribution channel 21 flows into the upper coating cavity 24 and then flows into the plate channel 16 and is coated on the upper surface of the substrate; the glue in the lower material guide channel 19 is divided into the third distribution channel 22 and the fourth distribution channel 23, and then the glue in the third distribution channel 22 and the fourth distribution channel 23 flows into the lower coating cavity 25 and then flows into the plate channel 16 and is coated on the lower surface of the substrate. More specifically, the semi-finished plate passes through the plate channel 16 in the second coating mold 6, and the feed port 17 in the second coating mold 6 is connected to the discharge port of the third extruder 3. In the second coating mold 6, the surface material is squeezed into the feed port 17 by the third extruder 3 and then divided into the upper material guide channel 18 and the lower material guide channel 19. The surface material in the upper material guide channel 18 is divided into the first distribution channel 20 and the second distribution channel 21, and then the surface material in the first distribution channel 20 and the second distribution channel 21 flows into the upper covering cavity 24 and then flows into the plate channel 16 and is covered on the upper surface of the semi-finished plate; the surface material in the lower material guide channel 19 is divided into the third distribution channel 22 and the fourth distribution channel 23, and then the surface material in the third distribution channel 22 and the fourth distribution channel 23 flows into the lower covering cavity 25 and then flows into the plate channel 16 and is covered on the lower surface of the semi-finished plate, thereby obtaining a finished plate. In this embodiment, the specific structure of the molding die 4 is a prior art well known to those skilled in the art, and will not be described in detail in this embodiment.

[0051] like Figure 4 As shown, the unwinding machine 9 includes a frame 26, an upper unwinding shaft 27, a lower unwinding shaft 28, at least one upper guide roller 29 and at least one lower guide roller 30;

[0052] The upper unwinding shaft 27 and the lower unwinding shaft 28 are respectively rotatably connected to the frame 26, the upper unwinding shaft 27 is mounted with the upper material roll 12, and the lower unwinding shaft 28 is mounted with the lower material roll 13;

[0053] The upper guide roller 29 is rotatably connected to the frame 26, and the UD tape 14 released from the loading roll 12 is wound around the upper guide roller 29 and then extends into the laminating machine 10 and is located above the substrate;

[0054] The lower guide roller 30 is rotatably connected to the frame 26, and the UD tape 14 released from the unloading roll 13 is wound around the lower guide roller 30 and then extends into the laminating machine 10 and is located below the substrate; specifically, the unwinding machine 9 also includes an upper magnetic powder brake and a lower magnetic powder brake, the upper magnetic powder brake is connected to the upper unwinding shaft 27 and is used to control the unwinding speed of the upper unwinding shaft 27, and the lower magnetic powder brake is connected to the lower unwinding shaft 28 and is used to control the unwinding speed of the lower unwinding shaft 28; wherein the specific structures of the upper magnetic powder brake and the lower magnetic powder brake are prior arts well known to those skilled in the art. In this embodiment, the upper guide roller 29 and the lower guide roller 30 are respectively provided with a plurality of them, and the upper unwinding shaft 27 and the lower unwinding shaft 28 are respectively provided with two of them.

[0055] like Figure 4 As shown, the unwinding machine 9 may further include an upper heating device 31 and a lower heating device 32;

[0056] The upper heating device 31 is connected to the frame 26, and the UD tape 14 released from the loading roll 12 passes through the upper heating device 31 and then extends into the laminating machine 10;

[0057] The lower heating device 32 is connected to the frame 26 , and the UD tape 14 released from the unloading roll 13 passes through the lower heating device 32 and then extends into the laminating machine 10 . The upper heating device 31 and the lower heating device 32 are respectively used to heat the corresponding UD tape 14 .

[0058] Specifically, the upper heating device 31 and the lower heating device 32 respectively include an upper heating plate and a lower heating plate, and a heating channel for the UD tape 14 to pass through is provided between the upper heating plate and the lower heating plate; wherein the UD tape 14 released from the upper material roll 12 passes through the heating channel in the upper heating device 31, and the UD tape 14 released from the lower material roll 13 passes through the heating channel in the lower heating device 32; both the upper heating plate and the lower heating plate can be ceramic heating plates.

[0059] like Figure 4As shown, the pressing machine 10 may include a fixed frame 33, a sliding seat, an upper pressing roller 34, a lower pressing roller 35 and a pressing cylinder 36;

[0060] The sliding seat is vertically slidably connected to the fixing frame 33;

[0061] The upper pressing roller 34 is rotatably connected to the sliding seat, and the lower pressing roller 35 is rotatably connected to the fixing frame 33. The substrate with the surface coated with glue passes between the upper pressing roller 34 and the lower pressing roller 35. The UD tape 14 released from the upper material roll 12 is wound around the upper guide roller 29 and then passes between the upper pressing roller 34 and the substrate. The UD tape 14 released from the lower material roll 13 is wound around the lower guide roller 30 and then passes between the lower pressing roller 35 and the substrate.

[0062] The pressing cylinder 36 is installed on the fixed frame 33. The pressing cylinder 36 is connected to the sliding seat and is used to drive the sliding seat to move downward, thereby closing the upper pressing roller 34 and the lower pressing roller 35 and pressing the UD belt 14 on the upper and lower surfaces of the substrate, thereby obtaining a semi-finished plate.

[0063] Specifically, the laminating machine 10 also includes a driving motor connected to the fixed frame 33, and the driving motor is connected to the lower pressing roller 35 and is used to drive the lower pressing roller 35 to rotate, thereby providing some power for the transportation of the semi-finished sheet material; wherein, the laminating machine 10 is an oil temperature laminating machine, and the upper pressing roller 34 and the lower pressing roller 35 are both thermal oil heating rollers.

[0064] like Figure 1 , 2 As shown, the traction machine 11 is located behind the second forming table 8, and an embossing machine 37 is also arranged between the traction machine 11 and the second forming table 8; specifically, the embossing machine 37 is used to emboss anti-slip patterns on the upper and lower surfaces of the finished sheet material; wherein, the anti-slip patterns are on the outermost surface coating layer of the finished sheet material.

[0065] like Figure 1 , 2As shown, the extruded sheet production line coated with UD tape may also include a cutter 38 located behind the tractor 11 and a material turning rack 39 located behind the cutter 38; specifically, the cutter 38 is used to cut the finished sheet into the length required on the market, and then collect it through the material turning rack 39. In further detail, the first extruder 1, the second extruder 2 and the third extruder 3 adopt advanced screw design and control system, which can accurately control the extrusion pressure and temperature, and ensure the stability and consistency of the product. In addition, the production line of the embodiment of the present application also adopts an automated control system, which can realize automated control and data collection of the production process, thereby improving production efficiency and product quality.

[0066] In summary, the substrate extruded from the molding die 4 passes through the first calibrating table 7 and is cooled and formed, and then the substrate passes through the first coating die 5, and the first coating die 5 extrude and coat the glue on the surface of the substrate, and then the substrate coated with glue extends to the laminating machine 10. At the same time, the UD tape 14 released from the upper material roll 12 extends to the laminating machine 10 and is located above the substrate, and the UD tape 14 released from the lower material roll 13 extends to the laminating machine 10 and is located below the substrate. The laminating machine 10 presses the two layers of UD tape 14 on the upper and lower surfaces of the substrate respectively to obtain a semi-finished plate. The semi-finished plate passes through the second coating die 6, and the second coating die 6 extrude and coat the surface material on the outside of the semi-finished plate to obtain a finished plate, and then the finished plate passes through the second calibrating table 8 to be cooled and formed and then passes through the traction machine 11, and the traction machine 11 can traction the finished plate to move. Among them, the finished plate includes a substrate located on the inner side, a UD tape 14 coated on the outer side of the substrate, and a surface coating layer located on the outer side. Therefore, the production line of the embodiment of the present application can produce extruded plates coated with UD tapes. Such extruded plates coated with UD tapes have the advantages of light weight, high strength and corrosion resistance, and can be used as scaffolding pedals.

[0067] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A UD tape coated extrusion sheet production line, characterized in that: It comprises a first extruder (1), a second extruder (2), a third extruder (3), a forming die (4), a first coating die (5), a second coating die (6), a first shaping table (7), a second shaping table (8), an unwinding machine (9), a laminating machine (10) and a traction machine (11); The molding die (4) is connected to the first extruder (1), and the first extruder (1) is used to extrude the base material into the molding die (4) and then extrude the base material through the molding die (4); The substrate passes through the first shaping table (7) and the first coating mold (5) in sequence, the first shaping table (7) is used to cool and shape the substrate, the first coating mold (5) is connected to the second extruder (2), and the second extruder (2) is used to extrude glue into the first coating mold (5) and then extrude the glue through the first coating mold (5) to coat the surface of the substrate; The substrate with the surface coated with glue passes through the laminating machine (10), the unwinding machine (9) is equipped with an upper material roll (12) and a lower material roll (13), the UD tape (14) released from the upper material roll (12) extends into the laminating machine (10) and is located above the substrate, and the UD tape (14) released from the lower material roll (13) extends into the laminating machine (10) and is located below the substrate, and the laminating machine (10) is used to press the UD tape (14) onto the upper and lower surfaces of the substrate to obtain a semi-finished plate; The semi-finished plate passes through the second coating die (6), the second coating die (6) is connected to the third extruder (3), and the third extruder (3) is used to extrude the surface material into the second coating die (6), and then extrude the surface material through the second coating die (6) to coat the outer side of the semi-finished plate, thereby obtaining a finished plate; The finished plate passes through the second shaping table (8) and the traction machine (11) in sequence; the second shaping table (8) is used to cool and shape the finished plate; and the traction machine (11) is used to traction the finished plate to move.

2. The extrusion sheet production line for coated UD tape according to claim 1, characterized in that: The forming die (4), the first shaping table (7), the first covering die (5), the pressing machine (10), the unwinding machine (9), the second covering die (6), the second shaping table (8) and the traction machine (11) are arranged in sequence from front to back.

3. The extrusion sheet production line for coated UD tape according to claim 1, characterized in that: The first coating mold (5) and the second coating mold (6) respectively comprise a mold body (15), wherein the mold body (15) is provided with a plate channel (16), a material feed port (17), an upper material guide channel (18), a lower material guide channel (19), a first distribution channel (20), a second distribution channel (21), a third distribution channel (22), a fourth distribution channel (23), an upper coating cavity (24) and a lower coating cavity (25); The plate channel (16) penetrates the mold body (15); The upper covering cavity (24) is located above the plate channel (16) and is in communication with the upper end of the plate channel (16); The lower covering cavity (25) is located below the plate channel (16) and is in communication with the lower end of the plate channel (16); One end of the upper material guiding channel (18) is in communication with the material feed port (17), the other end of the upper material guiding channel (18) is in communication with the upper end of the first distribution channel (20) and the upper end of the second distribution channel (21), respectively; the lower end of the first distribution channel (20) is in communication with the left end of the upper cladding cavity (24), and the lower end of the second distribution channel (21) is in communication with the right end of the upper cladding cavity (24); One end of the lower material guiding channel (19) is in communication with the feed port (17), and the other end of the lower material guiding channel (19) is in communication with the lower end of the third distribution channel (22) and the lower end of the fourth distribution channel (23), respectively; the upper end of the third distribution channel (22) is in communication with the left end of the lower cladding cavity (25), and the upper end of the fourth distribution channel (23) is in communication with the right end of the lower cladding cavity (25).

4. The extrusion sheet production line for coated UD tape according to claim 1, characterized in that: The unwinding machine (9) comprises a frame (26), an upper unwinding shaft (27), a lower unwinding shaft (28), at least one upper guide roller (29) and at least one lower guide roller (30); The upper unwinding shaft (27) and the lower unwinding shaft (28) are respectively rotatably connected to the frame (26); the upper material roll (12) is mounted on the upper unwinding shaft (27), and the lower material roll (13) is mounted on the lower unwinding shaft (28); The upper guide roller (29) is rotatably connected to the frame (26); the UD tape (14) released from the loading roll (12) is wound around the upper guide roller (29) and then extends into the laminating machine (10) and is located above the substrate; The lower guide roller (30) is rotatably connected to the frame (26); the UD tape (14) released from the unloading roll (13) is wound around the lower guide roller (30) and then extends into the laminating machine (10) and is located below the substrate.

5. The extrusion sheet production line for coated UD tape according to claim 4, characterized in that: The unwinding machine (9) further comprises an upper heating device (31) and a lower heating device (32); The upper heating device (31) is connected to the frame (26), and the UD tape (14) released from the loading roll (12) passes through the upper heating device (31) and then extends into the laminating machine (10); The lower heating device (32) is connected to the frame (26), and the UD tape (14) released from the unloading roll (13) passes through the lower heating device (32) and then extends into the laminating machine (10).

6. The extrusion sheet production line for coated UD tape according to claim 5, characterized in that: The upper heating device (31) and the lower heating device (32) respectively comprise an upper heating plate and a lower heating plate, and a heating channel for the UD tape (14) to pass through is provided between the upper heating plate and the lower heating plate.

7. The extrusion sheet production line for coated UD tape according to claim 4, characterized in that: The pressing machine (10) comprises a fixed frame (33), a sliding seat, an upper pressing roller (34), a lower pressing roller (35) and a pressing cylinder (36); The sliding seat is vertically slidably connected to the fixing frame (33); The upper pressing roller (34) is rotatably connected to the sliding seat, and the lower pressing roller (35) is rotatably connected to the fixed frame (33). The substrate with glue coated on the surface passes between the upper pressing roller (34) and the lower pressing roller (35). The UD tape (14) released from the upper material roll (12) is wound around the upper guide roller (29) and then passes between the upper pressing roller (34) and the substrate. The UD tape (14) released from the lower material roll (13) is wound around the lower guide roller (30) and then passes between the lower pressing roller (35) and the substrate. The pressing cylinder (36) is installed on the fixed frame (33), and the pressing cylinder (36) is connected to the sliding seat and is used to drive the sliding seat to move downward, thereby closing the upper pressing roller (34) and the lower pressing roller (35) and pressing the UD belt (14) onto the upper and lower surfaces of the substrate.

8. The extrusion sheet production line for coated UD tape according to claim 7, characterized in that: The laminating machine (10) further comprises a driving motor connected to the fixing frame (33), wherein the driving motor is connected to the lower pressing roller (35) and is used to drive the lower pressing roller (35) to rotate.

9. The extrusion sheet production line for coated UD tape according to claim 1, characterized in that: The traction machine (11) is located behind the second shaping table (8), and an embossing machine (37) is also arranged between the traction machine (11) and the second shaping table (8).

10. The extrusion sheet production line for coated UD tape according to claim 1, characterized in that: It also includes a cutting machine (38) located behind the traction machine (11) and a material turning rack (39) located behind the cutting machine (38).

Images