Continuous fiber reinforced co-extrusion die, forming line body and fiber reinforced foaming floor

Abstract

The invention discloses a continuous fiber reinforced co-extrusion die, a forming line body and a fiber reinforced foaming floor, and relates to the technical field of foaming floors, the continuous fiber reinforced co-extrusion die comprises a die body, the front end face and the rear end face of the die body are a mixed extrusion face and a core material feeding face respectively, and one side face of the die body is provided with a shell material feeding port; a core material supply channel penetrating through the mixed extrusion face and the core material supply face is formed in the mold body, a shell material supply cavity surrounding the core material supply channel is formed in the mold body, two fiber channels are formed in the mold body, the two fiber channels are symmetrically arranged up and down, and the fiber channels are arc-shaped bent channels. The forming line body comprises a continuous fiber reinforced co-extrusion die, a core material extruder and a shell material extruder; a shaping module, a vacuum water cooling group, an open type water cooling group and a traction machine are sequentially arranged on the mixed extrusion surface of the mold body. According to the invention, the overall strength and performance of the composite material are optimized, and uniform distribution and orientation of reinforced fibers are ensured.

Description

Technical Field

[0001] The invention relates to the field of sports flooring, or the technical field of foamed flooring, and more specifically to a continuous fiber-reinforced co-extrusion die and a molding line body and a fiber-reinforced foamed flooring. Background Art

[0002] In the field of plastic processing, extrusion molding is a method widely used to produce plastic profiles; however, the plastic extrusion molds in the prior art have some technical problems in the production process. For example, plastic profiles produced by traditional extrusion processes usually have problems with insufficient strength and rigidity, which limits the application of plastic profiles in fields with high requirements for mechanical properties.

[0003] For example, in the application field of outdoor flooring, frequent pedestrian trampling, placement of outdoor furniture, thermal expansion and contraction caused by climate change, and erosion of materials by wind, sun and rain, etc., lead to a reduction in the service life of the flooring. Reinforcement fiber is a commonly used fibrous reinforcement material with the performance of reinforcing the plastic matrix. The prior art already has a continuous fiber reinforced extrusion die, which usually extrude a mainstream channel for extruding the middle material of the board, an interlayer channel for adding reinforcement material, and a material for producing the outer shell; in order to enhance the strength of the plastic profile, but in the existing continuous fiber reinforced extrusion die, during the processing, the plastic matrix and the reinforcement fiber are simply mixed and extruded, and the uniform distribution of the reinforcement fiber cannot be effectively guaranteed, which leads to the reinforcement fiber and the plastic matrix not being able to coordinate forces well, and the overall strength of the profile cannot be effectively improved.

[0004] Therefore, how to provide a co-extrusion die that can achieve uniform distribution of reinforcing fibers and improve overall strength is a problem that technical personnel in this field urgently need to solve. Summary of the invention

[0005] In view of this, the present invention provides a continuous fiber reinforced co-extrusion die and a molding line and a fiber reinforced foam floor, aiming to solve the above technical problems.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A continuous fiber reinforced co-extrusion die, comprising a die body, wherein the front and rear end faces of the die body are respectively a mixing extrusion face and a core material feeding face, and one side face of the die body is provided with a shell material feeding port;

[0008] A core material supply channel penetrating the mixing extrusion surface and the core material supply surface is provided inside the mold body, and the core material supply channel penetrates one end of the mixing extrusion surface to form a core material extrusion port;

[0009] A shell material supply cavity surrounding the core material supply channel is provided inside the mold body, one side of the shell material supply cavity is connected to the shell material supply inlet, and the shell material supply cavity extends toward the mixing extrusion surface and penetrates the mixing extrusion surface to form a shell material extrusion outlet;

[0010] Two fiber channels are provided inside the mold body, and the two fiber channels are symmetrically arranged up and down, respectively. The fiber channels are arc-shaped curved channels, and both ends pass through the mixing extrusion surface. One end of the two fiber channels is open to form a fiber extrusion port, and are respectively located above and below the core material extrusion port, and are located on the inner side of the shell material extrusion port. The other end of the two fiber channels is open to form a fiber extrusion port, and the two fiber extrusion ports are respectively located above and below the shell material extrusion port.

[0011] Through the above technical scheme, the continuous fiber reinforced co-extrusion die provided by the present invention allows different materials (such as plastic matrix, reinforcing fibers, etc.) to remain separated during the extrusion process until they enter the subsequent shaping die for compounding. This layered extrusion method can accurately control the distribution and content of each material, thereby optimizing the overall strength and performance of the composite material; the curved flow channel design of the fiber channel allows the reinforcing fibers to flow along a specific path during transportation, guiding the reinforcing fibers to form a specific orientation during the extrusion process, and at the same time, the bending can be used to improve the stability of the fiber input process and prevent it from moving, thereby ensuring uniform distribution of the reinforcing fibers. Since the channels are independent, unnecessary mixing or interference of the reinforcing fibers with other materials (such as plastic matrix) during transportation can be avoided, thereby ensuring uniform distribution and orientation of the reinforcing fibers and improving overall strength and performance.

[0012] Preferably, in the above-mentioned continuous fiber reinforced co-extrusion die, the edge of the core material extrusion port extends away from the mixing extrusion surface to form a core material temperature control extension cylinder. By providing the core material temperature control extension cylinder, the core material and the shell material can be cooled in stages, thereby preventing the problem of internal stress concentration caused by simultaneous cooling.

[0013] Preferably, in the above-mentioned continuous fiber reinforced co-extrusion die, the outer side of the fiber extrusion port has a clamping roller assembly installed on the mixing extrusion surface. The clamping roller assembly can improve the clamping stability of the fiber, play a role in precise guidance, and can also reduce the friction between the fiber and the input port, so that the fiber can enter the channel more smoothly.

[0014] Preferably, in the above-mentioned continuous fiber reinforced co-extrusion die, the clamping roller assembly has a one-way rotation limiting structure. The one-way rotation limiting structure can prevent the clamping roller assembly from rotating in the opposite direction and has a precise guiding effect.

[0015] Preferably, in the above-mentioned continuous fiber reinforced co-extrusion die, the outer side of the clamping roller assembly is wrapped with a heater, and the heater has a fiber inlet. The heater can preheat the fiber and make the fusion effect of each layer better.

[0016] Preferably, in the above-mentioned continuous fiber reinforced co-extrusion die, the inner wall of the fiber channel is coated with a Teflon coating. The coating with Teflon coating can reduce the friction between the fiber and the channel wall, help to smoothly transport the reinforced fiber, reduce the breakage and blockage of the reinforced fiber, and improve production efficiency.

[0017] Preferably, in the above-mentioned continuous fiber reinforced co-extrusion die, the core material supply channel gradually decreases in diameter from the core material supply surface to the mixing extrusion surface. This structural setting can gradually compress the plastic matrix during the extrusion process to form a more compact structure.

[0018] Preferably, in the above-mentioned continuous fiber reinforced co-extrusion die, the curved portion of the arc-shaped curved channel is rounded, so that the fiber conveying path is smoother and the friction and damage of the reinforced fiber during the conveying process are reduced.

[0019] The present invention also provides a molding line body, including the above-mentioned continuous fiber reinforced co-extrusion mold; the core material supply channel of the core material supply surface of the mold body is connected to the core material extruder, and the shell material supply inlet of the mold body is connected to the shell material extruder; the mixing extrusion surface of the mold body is sequentially arranged with a shaping module, a vacuum water cooling group, an open water cooling group and a traction machine.

[0020] Through the above technical scheme, the present invention realizes the preparation of continuous fiber reinforced composite materials by extruding a plastic matrix to form an outer shell and a core layer, and sending glass fibers to a shaping mold to be cooled together with the outer shell and the core layer.

[0021] The present invention also provides a fiber-reinforced foam floor, which is formed by processing the above-mentioned molding line body into a floor body, and the floor body has two fiber-reinforced layers arranged up and down inside.

[0022] Through the above technical scheme, the present invention adds reinforcing fibers to both the outer shell and the internal core material during filling. The reinforcing fibers can be arranged along a specific direction in the outer shell, just like building a "skeleton" in the material, thereby improving the tensile and compressive resistance of the outer shell; in the internal filling space, the reinforcing fibers cooperate with the core material to further enhance the strength and stability inside the profile; the synergistic effect of the high strength of the outer shell and the internal fiber reinforcement enables the profile to withstand greater external forces, effectively solving the problem of insufficient strength of existing plastic profiles.

[0023] It can be seen from the above technical solutions that, compared with the prior art, the present invention discloses a continuous fiber reinforced co-extrusion die, a molding line and a fiber reinforced foam floor, which have the following beneficial effects:

[0024] 1. Enhance the mechanical properties of plastic profiles: By using continuous fiber reinforced co-extrusion molds and molding lines, plastic profiles with uniform distribution of reinforcing fibers can be produced, thereby improving the overall strength and rigidity of the profiles, solving the problem of insufficient strength and rigidity of plastic profiles produced by traditional extrusion processes.

[0025] 2. Improve the service life of the floor: In the application of outdoor floor, due to the addition of reinforcing fibers, the floor can better withstand the trampling of pedestrians, the placement of outdoor furniture, thermal expansion and contraction caused by climate change, and erosion by wind, sun, rain, etc., thereby extending the service life of the floor.

[0026] 3. Optimize the overall performance of composite materials: Through layered extrusion, the distribution and content of each material can be accurately controlled to optimize the overall performance of the composite material.

[0027] 4. Uniform distribution and specific orientation of reinforcing fibers: The fiber channel with curved flow channel design can guide the reinforcing fibers to form a specific orientation during the extrusion process, ensuring uniform distribution of the reinforcing fibers and improving the overall strength and performance.

[0028] 5. Reduce the problem of internal stress concentration: By setting up a core material temperature control extension cylinder, the core material and the shell material can be cooled in stages to prevent the problem of internal stress concentration caused by simultaneous cooling.

[0029] 6. Improve fiber clamping stability and reduce friction: The clamping roller assembly can improve the fiber clamping stability, reduce the friction between the fiber and the input entrance, and allow the fiber to enter the channel more smoothly.

[0030] 7. Precise guiding and preventing reverse rotation: The one-way rotation limiting structure on the clamping roller assembly can prevent the clamping roller assembly from rotating in the opposite direction, and has a precise guiding effect.

[0031] 8. Improve the fusion effect of each layer: The heater on the outside of the clamping roller assembly can preheat the fiber to improve the fusion effect of each layer.

[0032] 9. Reduce the friction between the fiber and the channel wall: The Teflon coating on the inner wall of the fiber channel can reduce the friction between the fiber and the channel wall, reduce the breakage and blockage of the reinforcing fiber, and improve production efficiency.

[0033] 10. Forming a compact structure: The core material supply channel gradually reduces its diameter from the core material supply surface to the mixing extrusion surface, so that the plastic matrix is ​​gradually compressed during the extrusion process to form a tighter structure.

[0034] 11. Reduce friction and damage during fiber transportation: The curved part of the arc-shaped curved channel is rounded to make the fiber transportation path smoother and reduce friction and damage to the reinforcing fiber during transportation.

[0035] 12. Realize the preparation of continuous fiber-reinforced composite materials: Through the continuous operation of the forming line, the efficient preparation of continuous fiber-reinforced composite materials is realized.

[0036] 13. Improve the tensile and compressive resistance of the profile: The reinforcing fibers arranged along a specific direction in the outer shell are like building a "skeleton" in the material, improving the tensile and compressive resistance of the outer shell.

[0037] 14. Enhanced internal strength and stability of the profile: In the internal filling space, the reinforcing fiber and the core material cooperate with each other to further enhance the internal strength and stability of the profile. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0039] Figure 1 The accompanying drawing is a schematic structural diagram of a continuous fiber reinforced co-extrusion die provided by the present invention;

[0040] Figure 2 The accompanying drawing is a structural cross-sectional view of a continuous fiber reinforced co-extrusion die provided by the present invention;

[0041] Figure 3 The accompanying drawing is a cross-sectional view of the continuous fiber reinforced co-extrusion die provided by the present invention;

[0042] Figure 4 The accompanying drawing is a schematic structural diagram of a clamping roller assembly provided by the present invention;

[0043] Figure 5 The accompanying drawing is a schematic diagram of the structure of the heater provided by the present invention;

[0044] Figure 6 The accompanying drawing is a schematic structural diagram of a forming line body provided by the present invention;

[0045] Figure 7 The accompanying drawing is a schematic structural diagram of a shaping module provided by the present invention;

[0046] Figure 8 The accompanying drawing is a schematic structural diagram of a vacuum water cooling group provided by the present invention;

[0047] Fig. 9 The accompanying drawing is a schematic structural diagram of an open water cooling group provided by the present invention;

[0048] Fig.10 The accompanying drawing is a schematic structural diagram of a traction machine provided by the present invention;

[0049] Fig.11 The accompanying drawing is a schematic structural diagram of the fiber-reinforced foam floor provided by the present invention.

[0050] in:

[0051] 1-core material extruder;

[0052] 2- Shell material extruder;

[0053] 3-Mold body;

[0054] 31-mixing extrusion surface; 311-core material extrusion outlet; 312-shell material extrusion outlet; 313-fiber extrusion outlet; 314-fiber extrusion inlet; 32-core material supply surface; 33-core material supply channel; 34-shell material supply cavity; 35-fiber channel; 36-core material temperature control extension cylinder; 37-clamping roller assembly; 371-mounting plate; 372-clamping roller; 373-ratchet; 374-pawl; 38-heater; 381-fiber inlet;

[0055] 4- Molding module;

[0056] 41-molding mold; 411-molding cavity;

[0057] 5- Vacuum water cooling group;

[0058] 51-guide frame;

[0059] 6-Open water cooling group;

[0060] 61-air nozzle;

[0061] 7- traction machine;

[0062] 8- Floor body;

[0063] 81-Fiber reinforcement layer. DETAILED DESCRIPTION

[0064] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0065] Embodiment 1:

[0066] See attached Figure 1 To Attachment Figure 3 The embodiment of the present invention discloses a continuous fiber reinforced co-extrusion die, including a die body 3, the front and rear end faces of the die body 3 are a mixing extrusion face 31 and a core material feeding face 32, respectively, and one side of the die body 3 has a shell material feeding port:

[0067] A core material supply channel 33 is provided inside the mold body 3 and passes through the mixing extrusion surface 31 and the core material supply surface 32. The core material supply channel 33 passes through one end of the mixing extrusion surface 31 to form a core material extrusion port 311.

[0068] A shell material supply cavity 34 surrounding the core material supply channel 33 is provided inside the mold body 3. One side of the shell material supply cavity 34 is connected to the shell material supply inlet. The shell material supply cavity 34 extends toward the mixing extrusion surface 31 and penetrates the mixing extrusion surface 31 to form a shell material extrusion outlet 312.

[0069] Two fiber channels 35 are provided inside the mold body 3. The two fiber channels 35 are symmetrically arranged up and down. The fiber channels 35 are arc-shaped curved channels, and both ends pass through the mixing extrusion surface 31. One end of the two fiber channels 35 is open to form a fiber extrusion port 313, which is respectively located above and below the core material extrusion port 311 and on the inner side of the shell material extrusion port 312. The other end of the two fiber channels 35 is open to form a fiber extrusion port 314, and the two fiber extrusion ports 314 are respectively located above and below the shell material extrusion port 312.

[0070] In order to further optimize the above technical solution, the edge of the core material extrusion port 311 extends in a direction away from the mixing extrusion surface 31 to form a core material temperature control extension cylinder 36 .

[0071] See attached Figure 4 The outer side of the fiber extrusion inlet 314 has a clamping roller assembly 37 installed on the mixing extrusion surface 31. Specifically, in this embodiment, the clamping roller assembly 37 includes two mounting plates 371 fixed on the mixing extrusion surface 31, and two clamping rollers 372 are rotatably connected between the two mounting plates 371, and the gap between the two clamping rollers 372 corresponds to the fiber extrusion inlet 314.

[0072] In order to further optimize the above technical solution, the clamping roller assembly 37 has a one-way rotation limiting structure. In this embodiment, the one-way rotation limiting structure includes a ratchet 373 and a pawl 374. The ratchet 373 is installed at the end of one of the two clamping rollers 372. For easy installation, the ratchet 373 is located on the outside of the mounting plate 371. The pawl 374 is rotatably connected to the outside of the mounting plate 371 through a torsion spring and is engaged with the ratchet teeth of the ratchet 373, so that the ratchet 373 can only rotate in one direction, thereby making the corresponding clamping roller 372 only rotate in one direction. When reverse rotation is required, it is only necessary to press the pawl 374 to disengage it from the ratchet teeth of the ratchet 373.

[0073] See attached Figure 5 The outside of the clamping roller assembly 37 is wrapped with a heater 38, and the heater 38 has a fiber inlet 381. In this embodiment, the heater 38 is a shell structure, and can be electromagnetic heating, electric heating, thermal oil heating or other heating forms.

[0074] In order to further optimize the above technical solution, the inner wall of the fiber channel 35 is coated with a Teflon coating.

[0075] In order to further optimize the above technical solution, the diameter of the core material supply channel 33 gradually decreases from the core material supply surface 32 to the mixing extrusion surface 31.

[0076] In order to further optimize the above technical solution, the curved portion of the arc-shaped curved channel is rounded.

[0077] In this embodiment, the front end of the mold body 3 is formed by assembling multiple die blocks through bolts. Figure 3 As shown, the purpose is to facilitate the processing of the internal channel and make it easier to process and shape. In other words, it is only necessary to open a channel or groove on each die, and a complete channel structure can be formed after combination.

[0078] Embodiment 2:

[0079] See attached Figure 6 An embodiment of the present invention discloses a molding line body, including a continuous fiber reinforced co-extrusion mold of embodiment 1; a core material supply channel 33 of a core material supply surface 32 of a mold body 3 is connected to a core material extruder 1, and a shell material supply inlet of the mold body 3 is connected to a shell material extruder 2; a mixing extrusion surface 31 of the mold body 3 is sequentially arranged with a shaping module 4, a vacuum water cooling group 5, an open water cooling group 6 and a traction machine 7.

[0080] In this embodiment, the forming process of the forming line body is:

[0081] The core material extruder 1 and the shell material extruder 2 are fed with the same material, which is PVC material. The glass fiber is inserted from the fiber extrusion port 314, passes through the fiber channel 35, and then comes out from the fiber extrusion port 313. The core material is extruded from the core material extrusion port 311, and the shell material is extruded from the shell material extrusion port 312. In this way, the PVC material extruded from the core material extrusion port 311 and the shell material extrusion port 312 wraps the glass fiber coming out of the fiber extrusion port 313, thereby forming a mixture to be foamed and shaped.

[0082] like Figure 6 As shown, in order to clearly show the structure, there is a certain distance between the mold body 3 and the shaping module 4 in the figure. In the actual processing process, the shaping module 4 and the mixing extrusion surface 31 of the mold body 3 are fitted together, and at the same time, the core material temperature control extension cylinder 36 is inserted into the cavity of the shaping module 4.

[0083] like Figure 7 As shown, the shaping module 4 includes a plurality of shaping modules 41, each of which has a shaping cavity 41, and the shaping cavity 411 can shape the foaming shaping mixture extruded from the extrusion port. The shaping module 41 can be opened and closed, and cold water is passed into the shaping cavity 411 to cool and shape the foaming shaping mixture to form a floor body 8. The floor body 8 passing through the shaping module 4 enters the vacuum water cooling group 5.

[0084] like Figure 8 As shown, the vacuum water cooling group 5 is an openable box body, and a plurality of guide frames 51 are fixed at intervals inside. The floor body 8 passes through the guide frames 51, and the vacuum water cooling group 5 is evacuated and cold water is introduced. The floor body 8 passing through the vacuum water cooling group 5 enters the open water cooling group 6.

[0085] like Fig. 9 As shown, the open water cooling group 6 is a box body with an open top, and cold water is introduced into the open water cooling group 6 and continuously flows out to be circulated. The end of the open water cooling group 6 has a plurality of air nozzles 61, and the air nozzles 61 blow air toward the top surface of the floor body 8 in the direction of the open water cooling group 6. The floor body 8 passing through the open water cooling group 6 enters the traction machine 7.

[0086] like Fig.10 As shown, the traction machine 7 is a double-layer crawler structure arranged up and down, and the two layers of circulating crawlers clamp the floor body 8 for traction.

[0087] It should be noted that, when feeding the material at the beginning, the mixture to be foamed and shaped extruded from the extrusion port needs to be tied with a rope first, and this section is called the head material. Then the rope is stretched all the way to the traction machine 7, and the rope is pulled by the traction machine 7 to stretch the head material. After the head material reaches the traction machine 7, the head material is cut off, and the formed floor body 8 is clamped and pulled. For coordinated use, the guide frame 51 is a structure assembled up and down. That is, after the head material passes through the shaping mold 41, the shaping mold 41 is buckled, and after passing through the vacuum water cooling group 5, the guide frame 51 is assembled and the vacuum water cooling group 5 is buckled.

[0088] It should be noted that the power of the extruder is not enough to push the mixed material forward, so it needs to be pulled by the traction machine 7. In actual processing, the pulling speed is set according to the thickness of the floor body 8: generally 0.6-1.2m / min, 0.6m / min for 22mm thick board, and 0.8m / min for 25mm thick board.

[0089] The processed and formed floor body 8 is as follows Fig.11 As shown, the floor body 8 has two fiber reinforcement layers 81 arranged one above the other. The fiber reinforcement layer 81 is glass fiber in this embodiment.

[0090] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0091] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A continuous fiber reinforced co-extrusion die, comprising a die body (3), wherein the front and rear end surfaces of the die body (3) are respectively a mixing extrusion surface (31) and a core material feeding surface (32), and one side surface of the die body (3) is provided with a shell material feeding port; characterized in that: The mold body (3) is provided with a core material supply channel (33) penetrating the mixing extrusion surface (31) and the core material supply surface (32), and the core material supply channel (33) penetrates one end of the mixing extrusion surface (31) to form a core material extrusion port (311); A shell material supply cavity (34) surrounding the core material supply channel (33) is provided inside the mold body (3); one side of the shell material supply cavity (34) is connected to the shell material supply port; the shell material supply cavity (34) extends toward the mixing extrusion surface (31) and penetrates the mixing extrusion surface (31) to form a shell material extrusion port (312); Two fiber channels (35) are provided inside the mold body (3), and the two fiber channels (35) are symmetrically arranged up and down, respectively. The fiber channels (35) are arc-shaped curved channels, and both ends of the fiber channels (35) pass through the mixing extrusion surface (31). One end of the two fiber channels (35) is open to form a fiber extrusion port (313), and is respectively located above and below the core material extrusion port (311), and is located on the inner side of the shell material extrusion port (312). The other end of the two fiber channels (35) is open to form a fiber extrusion port (314), and the two fiber extrusion ports (314) are respectively located above and below the shell material extrusion port (312).

2. A continuous fiber reinforced co-extrusion die according to claim 1, characterized in that: The edge of the core material extrusion outlet (311) extends in a direction away from the mixing extrusion surface (31) to form a core material temperature control extension cylinder (36).

3. The continuous fiber reinforced co-extrusion die according to claim 1, characterized in that: The outer side of the fiber extrusion port (314) is provided with a clamping roller assembly (37) installed on the mixing extrusion surface (31).

4. A continuous fiber reinforced co-extrusion die according to claim 3, characterized in that: The clamping roller assembly (37) is provided with a one-way rotation limiting structure.

5. The continuous fiber reinforced co-extrusion die according to claim 3, characterized in that: The outer side of the clamping roller assembly (37) is wrapped with a heater (38), and the heater (38) has a fiber inlet (381).

6. The continuous fiber reinforced co-extrusion die according to claim 1, characterized in that: The inner wall of the fiber channel (35) is coated with a Teflon coating.

7. The continuous fiber reinforced co-extrusion die according to claim 1, characterized in that: The core material supply channel (33) has a diameter that gradually decreases from the core material supply surface (32) toward the mixing extrusion surface (31).

8. The continuous fiber reinforced co-extrusion die according to claim 1, characterized in that: The curved portion of the arc-shaped curved channel is rounded.

9. A forming line body, characterized in that: A continuous fiber reinforced co-extrusion die comprising any one of claims 1 to 8; the core material supply channel (33) of the core material supply surface (32) of the die body (3) is connected to a core material extruder (1), and the shell material supply port of the die body (3) is connected to a shell material extruder (2); the mixing extrusion surface (31) of the die body (3) is sequentially arranged with a shaping module (4), a vacuum water cooling group (5), an open water cooling group (6) and a traction machine (7).

10. A fiber-reinforced foam floor, characterized in that: A floor body (8) is formed by processing a forming line body as described in claim 9, wherein the floor body (8) has two fiber reinforcement layers (81) arranged one above the other.

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