Anti-clogging pultrusion die for composite materials, composite materials and production method

Abstract

A plugging-proof pultrusion die for composite materials comprises a glue injection box, a molding die and a core die, wherein the glue injection box and the molding die are separately arranged, a locking piece is arranged between the glue injection box and the molding die, a guide rail extending along the length direction of the core die is arranged on the molding die, a sliding seat is fixedly arranged on the glue injection box, the sliding seat is slidably arranged on the guide rail, and the glue injection box is also connected to a driving piece for the sliding seat to slide on the guide rail. When fiber material plugs the glue injection box, the operator first opens the locking piece, and then controls the driving piece to slide the glue injection box, so that the glue injection box is separated from the molding die, so that the operator can clean the fiber material and liquid matrix material in the glue injection box, between the glue injection box and the molding die entrance, and at the glue injection box outlet and the molding die entrance. After cleaning, the operator controls the driving piece to dock the glue injection box with the molding die again and fix the two by the locking piece, and continue the pultrusion molding of the composite material. The glue injection box and the molding die arranged separately are convenient for the staff to deal with the problem of fiber plugging in the glue injection box, and reduce the time and workload of downtime maintenance.

Description

Technical Field

[0001] The invention relates to the technical field of composite material pultrusion molding, and in particular to an anti-clogging pultrusion die for composite materials. Background Art

[0002] Composite materials are materials formed by mixing two or more materials with obvious phase separation characteristics. Their morphology and performance are different from any of the individual materials. Their main components are matrix materials and reinforcement materials, among which fiber is the most commonly used reinforcement material. Composite materials usually refer to materials in their final form after molding, while materials in the form of matrix materials and reinforcement materials before final molding are called composite material precursors.

[0003] Fiber impregnation by continuous resin injection is an effective composite material molding process, which continuously injects resin into the cavity of a specially designed injection box according to actual demand, so that the fiber passing through the injection box cavity is quickly impregnated and enters the mold cavity connected to the rear section of the injection box for curing or shaping. In many designs, the injection box is designed as a part of the mold entrance to play the same function. The continuous resin injection method has been rapidly used in composite material pultrusion molding, but fiber material breakage caused by various reasons is prone to occur in production, resulting in increased traction resistance, causing composite material precursor accumulation, resulting in blockage and shutdown. There is room for improvement in the existing technology. Summary of the invention

[0004] In order to solve the above technical problems, the present invention proposes an anti-clogging pultrusion die for composite materials. Through the separately arranged glue injection box and forming die, the glue injection box is made to slide on the guide rail through a driving member, so as to realize the rapid separation of the glue injection box and the forming die, which is convenient for the staff to deal with the problem of fiber blockage in the glue injection box and reduces the time and workload of downtime for maintenance.

[0005] To achieve the above object, the technical solution of the present invention is as follows:

[0006] A clogging-proof pultrusion die for composite materials, comprising a glue injection box 1 and a molding die 2, wherein the glue injection box 1 and the molding die 2 are separately arranged, and the molding die 2 is provided with a mold inlet 211 and a mold outlet; the glue injection box 1 has a glue injection flow channel 12 for liquid matrix material to enter and an infiltration channel 11 for fiber material to pass through, and the fiber channel 11 is provided with a feed port 111 and a discharge port 112, and the discharge port 112 is arranged corresponding to the mold inlet 211, and the anti-clogging pultrusion die for composite materials is also provided with a mold frame system 5 for relative positioning, fixing and separation of the glue injection box 1 and the molding die 2, and a driving member 7 is arranged on the mold frame system 5, and the driving member 7 drives the glue injection box 1 to move, thereby realizing relative positioning, fixing and separation of the glue injection box 1 and the molding die 2. The separately arranged glue injection box and molding die facilitate the staff to deal with the problem of fiber blockage in the glue injection box, and reduce the time and workload of downtime maintenance. When the fiber material blocks the glue injection box, the operator first opens the locking part, and then controls the driving part to slide the glue injection box to separate the glue injection box from the molding die, so that the operator can clean the fiber material and liquid matrix material in the glue injection box, between the glue injection box and the molding die inlet, and at the glue injection box outlet and the molding die inlet. After the cleaning is completed, the operator controls the driving part to dock the glue injection box with the molding die again and fix the two by the locking part to continue the pultrusion molding of the composite material. The split-type glue injection box and molding die make it easy for the staff to deal with the problem of fiber blockage in the glue injection box, reducing the time and workload of downtime maintenance.

[0007] Furthermore, the mold frame system 5 includes a guide rail 51 extending along the length direction of the glue injection box 1 , and the glue injection box 1 is slidably disposed on the guide rail 51 .

[0008] Furthermore, a sliding seat 6 is provided on the glue injection box 1 , and the sliding seat 6 is slidably provided on the guide rail 51 .

[0009] Furthermore, a plurality of positioning posts 24 and positioning holes 15 corresponding to the positioning posts 24 are provided between the molding die 2 and the glue injection box 1 .

[0010] Furthermore, the mold frame system 5 also includes a support frame 8 fixedly disposed on the guide rail 51 , and the driving member 7 is disposed on the support frame 8 and connected to the glue injection box 1 .

[0011] Furthermore, one or more driving members 7 are distributed around the glue injection box 1 .

[0012] Furthermore, a support rod 81 is extended from the support frame 8 toward one side of the forming die 2 , and an end of the support rod 81 is hinged to the driving member 7 .

[0013] Furthermore, a preformed plate is provided on a side of the glue injection box away from the forming mold, and the preformed plate is densely covered with first fiber positioning holes for fiber material to pass through, and the first fiber positioning holes are in the shape of holes or slits.

[0014] Furthermore, a fiber distribution plate is provided between the preformed plate and the glue injection box, the fiber distribution plate is densely covered with second fiber positioning holes for passing fiber materials, the fiber distribution plate is fixedly provided on the glue injection box, and the second fiber positioning holes are in the shape of holes or slits.

[0015] Furthermore, the cross-sectional area of ​​the feed port 111 is greater than the cross-sectional area of ​​the discharge port 112 .

[0016] Furthermore, a locking member 4 is provided between the glue injection box 1 and the molding die 2 , and the locking member 4 includes a quick clamp 41 provided on the glue injection box 1 and the molding die 2 , and a lock buckle 42 corresponding to the quick clamp 41 .

[0017] Furthermore, it also includes a core mold 3 that penetrates the glue injection box 1 and the molding mold 2.

[0018] Furthermore, a first annular sealing groove 13 is provided on the circumferential side of the discharge port 112, a first annular sealing ring 14 is embedded in the first annular sealing groove 13, and the discharge port 112 is located at the center of the first annular sealing ring 14; or, a second annular sealing groove 22 is provided on the circumferential side of the mold inlet 211, a second annular sealing ring 23 is embedded in the second annular sealing groove 22, and the mold inlet 211 is located at the center of the second annular sealing ring 23.

[0019] The present invention also provides a pultrusion production equipment for composite materials, comprising any of the above-mentioned anti-clogging pultrusion dies for composite materials, and a traction device, wherein the traction device is arranged on one side of the die outlet and is used to pull the cured or shaped composite material out of the forming die 2.

[0020] The present invention also provides a pultrusion molding method for a composite material, wherein the composite material is manufactured using any of the pultrusion dies described above, or the pultrusion production equipment for composite materials described above, and specifically comprises the following steps:

[0021] a) passing the fiber material through the first fiber positioning hole 91 on the preforming plate to preform the fiber and its fabric;

[0022] b) injecting the liquid matrix material into the glue injection box 1 through the glue injection channel 12 to penetrate the fibers to form an uncured or shaped composite material precursor;

[0023] c) the composite material precursor is solidified or shaped in the molding die 2 to form a composite material;

[0024] d) Pulling the cured or shaped composite material out of the forming mold 2.

[0025] Furthermore, the pultrusion method further comprises the following steps:

[0026] Between step a and step b, there is also a step of passing the preformed fiber material through the second fiber positioning hole 101 , and then entering the glue injection box 1 and passing through the forming mold 2 .

[0027] Furthermore, it also includes:

[0028] e) opening the locking member 4 provided on the glue injection box 1 or the molding die 2 to separate the glue injection box 1 from the molding die 2; starting the driving member 7 to separate the glue injection box 1 from the molding die 2;

[0029] f) Pulling the fiber through the glue injection box 1 and the molding die 2, relying on the friction between the fiber material and the infiltration channel 11, the glue injection box 1 and the molding die 2 are driven to close, and the locking member 4 set on the glue injection box 1 or the molding die 2 is locked to lock the glue injection box 1 and the molding die 2.

[0030] The present invention also provides a composite material produced by any of the above-mentioned pultrusion methods; the composite material comprises a fiber material and a liquid matrix material.

[0031] Furthermore, the fiber material includes one or more of inorganic fibers, organic polymer fibers, metal fibers, and natural fibers, and the liquid matrix material includes polymers, inorganic materials, and metal materials.

[0032] Furthermore, the liquid matrix material also contains a lubricant or an internal release agent.

[0033] Furthermore, the weight ratio of the liquid matrix in the composite material is 15% to 35%.

[0034] The present invention also provides an application of any one of the above composite materials, wherein the composite material is applied to: door and window curtain wall frame profiles, cable bridges, ladder frames, electric poles, cross arms, insulating rods, floors, and grille profiles. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0036] Figure 1 The overall structural diagram of the anti-clogging pultrusion die is mainly used to reflect the state when the injection box is separated from the forming die;

[0037] Figure 2 Schematic diagram of the internal structure of the pultrusion die to prevent clogging;

[0038] Figure 3 The overall structural diagram of the anti-clogging pultrusion die is mainly used to reflect the state when the injection box and the forming die are closed;

[0039] Figure 4 It is the overall structural schematic diagram of the glue injection box;

[0040] Figure 5 It is a local enlarged view of point A;

[0041] Figure 6 The invention relates to a pultrusion molding method for a composite material.

[0042] In the figure: 1. glue injection box; 11. impregnation channel; 111. feed port; 112. discharge port; 12. glue injection channel; 13. first annular sealing groove; 14. first annular sealing ring; 15. positioning hole; 2. molding die; 21. molding channel; 211. mold entrance; 212. second discharge port; 22. second annular sealing groove; 23. second annular sealing ring; 24. positioning column; 3. core mold; 4. locking piece; 41. quick clamp; 42. lock; 5. mold frame system; 51. guide rail; 52. guide rail seat; 6. sliding seat; 7. driving piece; 8. support frame; 81. support rod; 9. preformed plate; 91. first fiber positioning hole; 10. fiber distribution plate; 101. second fiber positioning hole. DETAILED DESCRIPTION

[0043] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0044] In order to achieve the purpose of the invention, in some embodiments, Figures 1 to 3As shown, a blocking-proof pultrusion die for composite materials includes a glue injection box 1 and a molding die 2, wherein the glue injection box 1 and the molding die 2 are separately arranged, and the molding die 2 is provided with a mold inlet 211 and a mold outlet; the glue injection box 1 has a glue injection flow channel 12 for liquid matrix material to enter and an impregnation channel 11 for fiber material to pass through, and the fiber channel 11 is provided with a feed port 111 and a discharge port 112, and the discharge port 112 is arranged corresponding to the mold inlet 211, and the blocking-proof pultrusion die for composite materials is also provided with a mold frame system 5 for relative positioning, fixing and separation of the glue injection box 1 and the molding die 2, and a driving member 7 is arranged on the mold frame system 5, and the driving member 7 drives the glue injection box 1 to move, thereby realizing relative positioning, fixing and separation of the glue injection box 1 and the molding die 2. The separated glue injection box and molding die facilitate the staff to deal with the problem of fiber blockage in the glue injection box, reducing the time and workload of downtime maintenance. When the fiber material blocks the glue injection box, the operator first opens the locking part, and then controls the driving part to slide the glue injection box to separate the glue injection box from the molding die, so that the operator can clean the fiber material and liquid matrix material in the glue injection box, between the glue injection box and the molding die inlet, and at the glue injection box outlet and the molding die inlet. After the cleaning is completed, the operator controls the driving part to dock the glue injection box with the molding die again and fix the two by the locking part to continue the pultrusion molding of the composite material. The split-type glue injection box and molding die make it easy for the staff to deal with the problem of fiber blockage in the glue injection box, reducing the time and workload of downtime maintenance.

[0045] In some embodiments, the mold frame system 5 includes a guide rail 51 extending along the length direction of the glue injection box 1, and the glue injection box 1 is slidably arranged on the guide rail 51. This increases the accuracy of docking between the glue injection box 1 and the molding die 2, and is also conducive to realizing automatic control and improving reliability.

[0046] In some embodiments, the glue injection box 1 is provided with a sliding seat 6, and the sliding seat 6 is slidably arranged on the guide rail 51. The glue injection box 1 is connected to the guide rail 51 through the sliding seat 6, which facilitates the production, installation, maintenance and replacement of the equipment.

[0047] In some embodiments, Figure 2-Figure 4 As shown, a plurality of positioning posts 24 and positioning holes 15 corresponding to the positioning posts 24 are provided between the molding die 2 and the glue injection box 1. The precision and stability of the docking between the glue injection box 1 and the molding die 2 are further improved, and the docking efficiency is improved.

[0048] In some embodiments, the mold frame system 5 further includes a support frame 8 fixedly disposed on the guide rail 51 , and the driving member 7 is disposed on the support frame 8 and connected to the glue injection box 1 .

[0049] In some embodiments, one, two or more driving members 7 are distributed around the glue injection box 1 .

[0050] In some embodiments, a support rod 81 is extended from the support frame 8 toward one side of the forming die 2 , and an end of the support rod 81 is hinged to the driving member 7 .

[0051] In some embodiments, a preformed plate is provided on one side of the injection box away from the forming mold, and the preformed plate is densely covered with first fiber positioning holes for fiber material to pass through, and the first fiber positioning holes are in the shape of holes or slits. Different hole shapes are adapted to different fiber materials, for example, a circular or elliptical hole is suitable for linear fiber materials, and a stripe hole is suitable for fiber fabrics.

[0052] In some embodiments, a fiber distribution plate is provided between the preformed plate and the glue injection box, and the fiber distribution plate is densely covered with second fiber positioning holes for passing fiber material. The fiber distribution plate is fixedly provided on the glue injection box, and the second fiber positioning holes are in the shape of holes or slits.

[0053] In some embodiments, the cross-sectional area of ​​the feed port 111 is greater than the cross-sectional area of ​​the discharge port 112. In addition, the cross-sectional area of ​​the infiltration channel 11 may be gradually reduced from the feed port 111 side to the discharge port 112 side, which is beneficial to increase the internal pressure of the liquid matrix material inside the infiltration channel 11 and improve the infiltration effect on the fiber material.

[0054] In some embodiments, a locking member 4 is further provided between the glue injection box 1 and the molding die 2 , and the locking member 4 includes a quick clamp 41 provided on the glue injection box 1 and the molding die 2 respectively and a lock buckle 42 corresponding to the quick clamp 41 .

[0055] In some embodiments, a core mold 3 is also included that passes through the glue injection box 1 and the molding mold 2 .

[0056] In some embodiments, a first annular sealing groove 13 is provided on the circumferential side of the discharge port 112, a first annular sealing ring 14 is embedded in the first annular sealing groove 13, and the discharge port 112 is located at the center of the first annular sealing ring 14; or, a second annular sealing groove 22 is provided on the circumferential side of the mold inlet 211, a second annular sealing ring 23 is embedded in the second annular sealing groove 22, and the mold inlet 211 is located at the center of the second annular sealing ring 23.

[0057] The present invention also provides a pultrusion production equipment for composite materials, comprising any of the above-mentioned anti-clogging pultrusion dies for composite materials, and a traction device, wherein the traction device is arranged on one side of the die outlet and is used to pull the cured or shaped composite material out of the forming die 2.

[0058] The present invention also provides a pultrusion molding method for a composite material, wherein the composite material is manufactured using any of the pultrusion dies described above, or the pultrusion production equipment for composite materials described above, and specifically comprises the following steps:

[0059] a) passing the fiber material through the first fiber positioning hole 91 on the preforming plate to preform the fiber and its fabric;

[0060] b) injecting the liquid matrix material into the glue injection box 1 through the glue injection channel 12 to penetrate the fibers to form an uncured or shaped composite material precursor;

[0061] c) the composite material precursor is solidified or shaped in the molding die 2 to form a composite material;

[0062] d) Pulling the cured or shaped composite material out of the forming mold 2.

[0063] Furthermore, the pultrusion method further comprises the following steps:

[0064] Between step a and step b, there is also a step of passing the preformed fiber material through the second fiber positioning hole 101 , and then entering the glue injection box 1 and passing through the forming mold 2 .

[0065] Furthermore, it also includes:

[0066] e) opening the locking member 4 provided on the glue injection box 1 or the molding die 2 to separate the glue injection box 1 from the molding die 2; starting the driving member 7 to separate the glue injection box 1 from the molding die 2;

[0067] f) Pulling the fiber through the glue injection box 1 and the molding die 2, relying on the friction between the fiber material and the impregnation channel 11, the glue injection box 1 and the molding die 2 are driven to close, and the locking member 4 set on the glue injection box 1 or the molding die 2 is locked to lock the glue injection box 1 and the molding die 2. Here, the driving member 7 only needs to provide the function of separating the glue injection box 1 from the molding die 2, which can further simplify the complexity of the equipment and reduce the cost.

[0068] The present invention also provides a composite material produced by any of the above-mentioned pultrusion methods; the composite material comprises a fiber material and a liquid matrix material.

[0069] Furthermore, the fiber material includes one or more of inorganic fibers, organic polymer fibers, metal fibers, and natural fibers, and the liquid matrix material includes polymers, inorganic materials, and metal materials.

[0070] Furthermore, the liquid matrix material also contains a lubricant or an internal release agent.

[0071] Furthermore, the weight ratio of the liquid matrix in the composite material is 15% to 35%.

[0072] The present invention also provides an application of any one of the above composite materials, wherein the composite material is applied to: door and window curtain wall frame profiles, cable bridges, ladder frames, electric poles, cross arms, insulating rods, floors, and grille profiles.

[0073] like Figures 1 to 5 As shown, a plugging-proof pultrusion die for composite materials comprises a glue injection box 1, a molding die 2 and a core die 3 penetrating the glue injection box 1 and the molding die 2. The glue injection box 1 and the molding die 2 are separately arranged. During normal production, the glue injection box 1 and the molding die 2 are closed together. When fiber plugging occurs, the operator opens the glue injection box 1 to clean the plugged fibers. A locking member 4 for fixing is arranged between the glue injection box 1 and the molding die 2. When the molding die 2 and the glue injection box 1 are closed, the locking member 4 is used to fix the two. A mold frame system 5 is arranged on the molding die 2. The mold frame system 5 comprises a guide rail seat 52 fixedly arranged on the molding die 2. The upper edge of the guide rail seat 52 The guide rail 51 extends in the length direction of the core mold 3, and the glue injection box 1 is fixedly provided with a sliding seat 6, which is slidably provided on the guide rail 51. The glue injection box 1 is also connected with a driving member 7 for the sliding seat 6 to slide on the guide rail 51. When the fiber material blocks the glue injection box 1, the operator first opens the locking member, and then controls the driving member 7 to slide the glue injection box 1 on the guide rail 51, so that the glue injection box 1 is separated from the molding die 2, which is convenient for the operator to clean the composite material precursor in the glue injection box 1. After the cleaning is completed, the operator starts the traction device to pull the fiber material, and the glue injection box 1 and the molding die 2 are connected again by the fiber material in the glue injection box. The two are fixed by the locking member 4, and the pultrusion molding of the composite material is continued. The split glue injection box 1 and the molding die 2 are convenient for the staff to deal with the problem of fiber blockage in the glue injection box 1, reducing the time and workload of downtime maintenance.

[0074] like Figure 1 and Figure 2 As shown, the glue injection box 1 has an impregnation channel 11 and a glue injection hole for the core mold 3 to pass through, the fiber material adheres to the inner wall of the core mold 3 and the impregnation channel 11 and enters the impregnation channel 11, the liquid matrix material enters the impregnation channel 11 through the glue injection hole and infiltrates the fiber material to form a composite material precursor, the impregnation channel 11 includes a feed port 111 for the fiber material to enter and a discharge port 112 docked with the molding mold 2, the molding mold 2 has a molding channel 21 for molding the composite material, the molding channel 21 includes a mold inlet 211 corresponding to the discharge port 112 and a second discharge port 212, the peripheral side of the discharge port 112 is provided with a first annular sealing groove 13, combined with Figure 4As shown, a first annular sealing groove 13 is embedded with a first annular sealing ring 14, and the discharge port 112 is located at the center of the first annular sealing ring 14; a second annular sealing groove 22 is arranged on the circumferential side of the mold inlet 211, and a second annular sealing ring 23 is embedded in the second annular sealing groove 22, and the mold inlet 211 is located at the center of the second annular sealing ring 23; further, in order to improve the sealing between the glue injection box 1 and the molding mold 2, the first annular sealing groove 13 and the second annular sealing groove 22 are arranged correspondingly, and when the glue injection box 1 is docked with the molding mold 2, the first annular sealing ring 14 abuts against the second annular sealing ring 23.

[0075] The infiltration channel 11 includes a feed port 111 arranged opposite to the discharge port 112, and the infiltration channel 11 is greater than or equal to the discharge port 112. Preferably, the infiltration channel 11 includes a linearly shrinking or equal part from the feed port 111 to the discharge port 112, so that the internal pressure of the liquid matrix material can be increased, thereby improving the quality and speed of the infiltration fiber material.

[0076] Combination Figure 5 As shown, the locking member 4 includes a quick clamp 41 arranged on the glue injection box 1 and a lock buckle 42 arranged on the molding die 2 and corresponding to the quick clamp 41, so that the speed of unlocking the glue injection box 1 and the molding die 2 can be accelerated.

[0077] In order to distribute the fiber material in the spatial position as designed, a preformed plate 9 is provided on the side of the glue injection box 1 away from the forming mold 2. The preformed plate 9 is evenly and densely covered with first fiber positioning holes 91. The preformed plate 9 is fixedly connected to the glue injection box 1, and the spatial distribution of the fiber material is limited by the first fiber positioning holes 91. Preferably, the fiber material in the form of yarn bundles is spatially distributed using the hole-shaped first positioning holes, and the planar fiber fabric is positioned into the designed bending shape and spatial position using the slit-shaped second positioning holes.

[0078] In order to facilitate the operator to restore the connection position between the forming mold 2 and the glue injection box 1, a positioning column extending toward one side of the glue injection box 1 is provided on the forming mold 2, and the positioning column is arranged at the entrance of the forming mold 2 or the exit of the glue injection box. Correspondingly, the glue injection box 1 or the forming mold 2 is provided with a positioning hole 15 corresponding to the positioning column one by one; a support frame 8 is also provided on the guide rail 51, and the driving member 7 is a driving device arranged on the support frame 8. The driving device can be a cylinder, an electric cylinder, a hydraulic cylinder or a ball screw. There are two driving devices, and the two driving devices are relatively arranged on both sides of the glue injection box 1. In some cases, it can also be one or more than two; the support A support rod 81 extends from the support frame 8 toward one side of the forming mold 2, and the end of the support rod 81 is connected to the driving device. The connection method can be hinged or other methods. The positioning columns distributed at the entrance of the forming mold 2 are used in conjunction with the positioning holes 15 at the outlet of the glue injection box 1 to ensure the position accuracy between the glue injection box 1 and the forming mold 2 when they are docked; at the same time, the positioning columns have a guiding function, which is convenient for the operator to lock the glue injection box 1 and the forming mold 2 again after opening the glue injection box 1, thereby ensuring the accuracy of the position adjustment between the glue injection box 1 and the forming mold 2 by the operator. The support rod 81 fixes one end of the cylinder and is hinged to the cylinder so that the cylinder can pull the glue injection box 1 apart when the glue injection box 1 needs to be separated from the forming mold.

[0079] Specific implementation process:

[0080] When fiber blockage occurs during pultrusion production, stop injection, loosen the locking piece 4, start the cylinder to pull the injection box 1 to separate it from the forming mold 2, inject mold cleaning agent into the injection box 1, and expose the fibers between the forming mold 2 and the injection box 1 in the gap between them. The fiber material and liquid matrix material can be cleaned in the same way as the traditional glue tank type dipping pultrusion process, so as to ensure that they do not block the injection box 1 and the forming mold 2. After cleaning, start the traction device, the fiber material is pulled forward, and the injection box 1 and the preformed plate 9 are also driven to slide along the guide rail 51 until the injection box 1 and the forming mold 2 are closed. After closing, the locking piece 4 is locked, and the pultrusion production continues.

[0081] like Figure 6 As shown, a pultrusion molding method of a composite material, wherein the composite material is manufactured using the above-mentioned pultrusion die, specifically comprises the following steps:

[0082] a) passing the fiber material in the form of a yarn bundle through the first fiber positioning hole on the preforming plate to preform the fiber and the fabric thereof;

[0083] b) passing the fabric-like fiber material through the second fiber positioning hole into the glue injection box and through the forming die;

[0084] c) Inject the liquid matrix into the injection box through the injection channel to penetrate the fiber to become an uncured or fixed composite material precursor

[0085] d) The composite material precursor is cured or shaped in the molding die to form a composite.

[0086] e) Pulling the cured or shaped composite material out of the molding die.

[0087] This allows the manufacture of composite materials containing both fabric and yarn.

[0088] Furthermore, it also includes:

[0089] f) Opening the quick lock provided on the glue injection box or the molding die to separate the glue injection box from the molding die; starting the driving member to make the glue injection box slide along the guide rail to separate the glue injection box from the molding die;

[0090] g) The fiber is pulled through the glue injection box and the molding die, driving the glue injection box and the molding die to close together, and the quick lock set on the glue injection box or the molding die is locked to lock the glue injection box and the molding die.

[0091] This allows for easy and quick handling of die blockages, rapid resumption of production, and reduced downtime and waste.

[0092] A composite material produced by the pultrusion method includes a composite material formed by a fiber material and a liquid matrix material.

[0093] Furthermore: the fiber material includes one or more of inorganic fibers, organic polymer fibers, metal fibers, and natural fibers.

[0094] Furthermore: the inorganic fibers include glass fibers, basalt fibers, and carbon fibers; the organic polymer fibers include polyester fibers, Kevlar fibers, ultra-high molecular weight polyethylene fibers, polyamide fibers, polyvinyl alcohol fibers, polyvinyl chloride fibers, and polyacrylonitrile fibers; the metal fibers include steel fibers, aluminum fibers, and copper fibers; the natural fibers include flax fibers, ramie fibers, sisal fibers, jute fibers, bamboo fibers, and cotton fibers.

[0095] Furthermore: the liquid matrix includes one or more of organic polymer resin, inorganic gelling material and metal material.

[0096] Furthermore: the inorganic cementitious material includes one or more of cement, magnesia, and gypsum; the metal material includes one or more of aluminum and its alloys, magnesium and its alloys; the organic polymer resin includes one or more of thermosetting resins and thermoplastic resins; the thermosetting resin includes one or more of polyurethane resin, epoxy resin, phenolic resin, unsaturated polyester resin, vinyl resin, and cyanate ester resin.

[0097] Furthermore: the liquid matrix also contains a lubricant or an internal release agent.

[0098] Furthermore: the weight ratio of the liquid matrix in the composite material is 15% to 35%.

[0099] The invention also discloses a composite material applied to: door and window curtain wall frame profiles, cable bridges, ladder frames, electric poles, cross arms, insulating rods, floors, and grille profiles.

[0100] It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements all fall within the protection scope of the present invention.

Claims

1. A plugging-proof pultrusion die for composite materials, comprising a glue injection box (1) and a forming die (2), characterized in that: The glue injection box (1) and the molding die (2) are arranged separately, and the molding die (2) is provided with a die inlet (211) and a die outlet; the glue injection box (1) has a glue injection flow channel (12) for the liquid matrix material to enter and an impregnation channel (11) for the fiber material to pass through, and the impregnation channel (11) is provided with a feed port (111) and a discharge port (112), and the discharge port (112) is arranged corresponding to the die inlet (211). The anti-clogging pultrusion die for composite materials is also provided with a mold frame system (5) for relative positioning, fixing and separation of the glue injection box (1) and the molding die (2). The mold frame system (5) is provided with a driving member (7), and the driving member (7) drives the glue injection box (1) to move, thereby realizing the separation and closing of the glue injection box (1) and the forming mold (2); a preformed plate is provided on the side of the glue injection box away from the forming mold, and the preformed plate is densely covered with first fiber positioning holes for fiber material to pass through, and the first fiber positioning holes are in the shape of holes; a fiber distribution plate is provided between the preformed plate and the glue injection box, and the fiber distribution plate is densely covered with second fiber positioning holes for fiber material to pass through, and the fiber distribution plate is fixedly provided on the glue injection box, and the second fiber positioning holes are in the shape of slits.

2. The anti-clogging pultrusion die for composite materials according to claim 1, characterized in that: The mold frame system (5) comprises a guide rail (51) extending along the length direction of the glue injection box (1), and the glue injection box (1) is slidably arranged on the guide rail (51).

3. The anti-clogging pultrusion die for composite materials according to claim 2, characterized in that: The glue injection box (1) is provided with a sliding seat (6), and the sliding seat (6) is slidably arranged on the guide rail (51).

4. The anti-clogging pultrusion die for composite materials according to claim 1, characterized in that: A plurality of positioning columns (24) and positioning holes (15) corresponding one to one with the positioning columns (24) are provided between the molding die (2) and the glue injection box (1).

5. The anti-clogging pultrusion die for composite materials according to claim 3, characterized in that: The mold frame system (5) further comprises a support frame (8) fixedly arranged on the guide rail (51), and the driving member (7) is arranged on the support frame (8) and connected to the glue injection box (1).

6. The anti-clogging pultrusion die for composite materials according to claim 5, characterized in that: One or more driving members (7) are distributed around the glue injection box (1).

7. The anti-clogging pultrusion die for composite materials according to claim 6, characterized in that: A support rod (81) extends from the support frame (8) toward one side of the forming die (2), and an end of the support rod (81) is hinged to the driving member (7).

8. The anti-clogging pultrusion die for composite materials according to claim 1, characterized in that: The cross-sectional area of ​​the feed port (111) is greater than or equal to the cross-sectional area of ​​the discharge port (112).

9. The anti-clogging pultrusion die for composite materials according to claim 1, characterized in that: A locking member (4) is further provided between the glue injection box (1) and the molding die (2), and the locking member (4) comprises a quick clamp (41) respectively provided on the glue injection box (1) and the molding die (2), and a lock buckle (42) corresponding to the quick clamp (41).

10. The anti-clogging pultrusion die for composite materials according to claim 1, characterized in that: It also includes a core mold (3) that penetrates the glue injection box (1) and the molding mold (2).

11. The anti-clogging pultrusion die for composite materials according to claim 1, characterized in that: A first annular sealing groove (13) is provided on the circumferential side of the discharge port (112), a first annular sealing ring (14) is embedded in the first annular sealing groove (13), and the discharge port (112) is located at the center of the first annular sealing ring (14); or a second annular sealing groove (22) is provided on the circumferential side of the mold inlet (211), a second annular sealing ring (23) is embedded in the second annular sealing groove (22), and the mold inlet (211) is located at the center of the second annular sealing ring (23).

12. A pultrusion production device for composite materials, characterized in that: It comprises an anti-clogging pultrusion die for composite materials as claimed in any one of claims 1 to 11, and a traction device, wherein the traction device is arranged at one side of the die outlet and is used to pull the cured or shaped composite material out of the forming die (2).

13. A pultrusion method for a composite material, characterized in that: The composite material is manufactured using the pultrusion die according to any one of claims 1 to 11 or the pultrusion production equipment for composite materials according to claim 12, specifically comprising the following steps: a) passing the fiber material through the first fiber positioning hole (91) on the preforming plate to preform the fiber and the fabric thereof; b) injecting a liquid matrix material into the glue injection box (1) through a glue injection channel (12) to penetrate the fibers to form an uncured composite material precursor; c) the composite material precursor is cured in the molding die (2) to form a composite material; d) pulling the solidified composite material out of the forming die (2); between step a and step b, the step of passing the fiber fabric through the second sieve fiber positioning hole (101) and folding it into a designed shape is also included, and then entering the glue injection box (1) and passing through the forming die (2).

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