Bent fiber reinforced composite material forming method and production line

Abstract

The invention discloses a bent fiber reinforced composite material forming method and production line, the production line comprises a creel, a shaping table, a post-curing oven, a bending traction machine and a material supporting frame, the creel is installed on one side of the shaping table, the material supporting frame is installed on one side of the shaping table and corresponds to the creel, the post-curing oven is installed on the shaping table, and the bending traction machine is installed on the post-curing oven. The production line for the bent fiber reinforced composite material has the beneficial effects that the production line for the bent fiber reinforced composite material is simple in structure, different molds are used according to the requirements of different shapes, different instruments are matched, continuous traction and fixed-distance cutting are achieved, the production line is simple in structure, production efficiency is high, production cost is low, and the production line is suitable for large-scale production. According to the polar machining method provided by the scheme, the machining efficiency of the equipment can be improved, and meanwhile, the polar machining method is simple in structure and convenient to clean, disassemble and assemble.

Description

Technical Field

[0001] The invention relates to the technical field of composite material processing, in particular to a bending fiber reinforced composite material forming method and a production line. Background Art

[0002] At present, the anchor rods used in coal mine support in my country can be roughly divided into: wooden anchor rods, bamboo anchor rods and metal anchor rods (referred to as steel anchor rods), among which steel anchor rods are used the most. Wooden and bamboo anchor rods are not strong and are easy to rot; steel anchor rods have the following defects in the application process:

[0003] Steel anchor rods are prone to rust in mines, and sparks will be generated when they collide with coal mining machinery, posing a threat to production safety; steel anchor rods are heavy, and installation work is labor-intensive, inefficient, and has high transportation costs;

[0004] Fiber reinforced resin anchor is a new type of composite material, which is made of fiber as reinforcing material, synthetic resin and glue containing various fillers, flame retardants, curing agents and other functional additives as the matrix, and is formed by pultrusion, winding thread forming technology and necessary surface treatment. It has the advantages of high specific strength, good corrosion resistance and fatigue resistance, and is increasingly widely used.

[0005] At present, fiber reinforced resin anchor rod pultrusion generally uses cord or plastic braid as winding material, which is wound on the glass fiber impregnated with resin and tension is applied to squeeze out the thread. Since the anchor rod is heated to about 200℃ in an oven for curing, the winding material will lose strength or partially melt, so the winding material is disposable, and the winding thread using the above materials needs to be manually cleaned after the anchor rod is formed. The processing efficiency is low. In view of this, in-depth research on the above problems led to the creation of this case. Summary of the invention

[0006] The purpose of the present invention is to solve the above problems, and a method and production line for forming a curved fiber reinforced composite material are designed to solve the existing background technology problems.

[0007] To achieve the above-mentioned purpose, the technical solution of the present invention is: a production line of curved fiber reinforced composite materials, comprising a creel, a shaping table, a post-curing oven, a bending traction machine and a support rack, the creel is installed on one side of the shaping table, the support rack is installed on one side of the shaping table and corresponds to the creel, the post-curing oven is installed on the shaping table, a dehumidifier is connected to the end of the creel, a dipping box is provided between the creel and the shaping table, a mold is provided at the end of the shaping table, the mold is located in the post-curing oven, a bending cutting saw is provided on the shaping table corresponding to the support rack, one end of the bending cutting saw is movably connected to the shaping table, and the bending traction machine is installed on the shaping table and is located between the bending cutting saw and the post-curing oven.

[0008] A tensioner is installed on the yarn outlet of the creel.

[0009] The shaping table is provided with a front support and a rear support on one side relative to the dipping box and fixed to the outside of the mold.

[0010] Guide rollers and heating tubes are installed inside the post-curing oven.

[0011] The mold can be made into different curvatures according to the product.

[0012] The inlet and outlet of the dehumidifier are installed with porcelain beads and heated by infrared heating tubes.

[0013] A method for forming a curved fiber reinforced composite material, comprising the following steps: step S1, putting on line, step S2, dehumidification, step S3, dipping, step S4, forming and curing, step S5, drying, step S6, pulling, step S7, cutting, step S8, inspection and storage;

[0014] Step S1: placing the yarn roll on the creel, passing the yarn through the tensioner from the yarn outlet of the creel, and the tension of the tensioner can be adjusted according to the pulling and extrusion conditions;

[0015] Step S2: The inlet and outlet of the dehumidifier are equipped with ceramic beads for the yarn to pass through, and the dehumidifier is provided with an infrared heating tube to heat the yarn;

[0016] Step S3: Resin is stored in the dipping box, and the yarn passes through the resin in the dipping box after being dehumidified;

[0017] Step S4: the yarn passes through the cavity of the mold, and the yarn is shaped by the pultrusion effect of the cavity;

[0018] Step S5: After the yarn passes through the mold, it is heated and fixed in a curing oven;

[0019] Step S6: Continuously pulling the product through the bending pulling machine to maintain the continuity of production;

[0020] Step S7: using a curved cutting saw to cut the curved profile to ensure the length of the profile at a time;

[0021] Step S8: The cut profiles are stored on a support rack and packaged for storage after inspection.

[0022] The drying temperature in step S5 is not higher than 100°C.

[0023] In step S4, the cavity of the mold can be made into different curvatures according to the product, and the molding shape of the material can be changed by replacing the mold.

[0024] In step S2, the temperature of the dehumidifier is between 70°C and 80°C.

[0025] The production line of the bent fiber reinforced composite material manufactured by using the technical solution of the present invention has a simple structure. Different molds are used according to the needs of different shapes, and different equipment is used to achieve continuous traction and fixed-distance cutting, and rapid molding and cutting are performed. No winding is required for fixing. Combined with the polarity processing method provided in this case, not only can the processing efficiency of the equipment be improved, but also the structure is simple and cleaning and disassembly are relatively convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic structural diagram of a curved fiber reinforced composite material production line according to the present invention.

[0027] Figure 2 The figure is a schematic flow chart of a method for forming a curved fiber reinforced composite material according to the present invention.

[0028] In the figure: 1. yarn rack; 2. dehumidifier; 3. dipping box; 4. mold; 5. shaping table; 6. post-curing oven; 7. bending traction machine; 8. bending cutting saw; 9. support rack; 101. tensioner; 501. front support; 502. rear support; 601. guide roller; 602. heating tube. DETAILED DESCRIPTION

[0029] The present invention will be described in detail below in conjunction with the accompanying drawings. Figure 1-2 As shown, the present embodiment is characterized in that it includes a yarn frame 1, a shaping table 5, a post-curing oven 6, a bending traction machine 7 and a support rack 9. The yarn frame 1 is installed on one side of the shaping table 5, the support rack 9 is installed on one side of the shaping table 5 and corresponds to the yarn frame 1, the post-curing oven 6 is installed on the shaping table 5, a dehumidifier 2 is connected to the end of the yarn frame 1, a dipping box 3 is provided between the yarn frame 1 and the shaping table 5, a mold 4 is provided at the end of the shaping table 5, the mold 4 is located in the post-curing oven 6, a bending cutting saw 8 is provided on the shaping table 5 corresponding to the support rack 9, and the bending cutting saw 8 One end is movably connected to the shaping table 5, and the bending traction machine 7 is installed on the shaping table 5 and is located between the bending cutting saw 8 and the post-curing oven 6; the production line of the curved fiber reinforced composite material has a simple structure, and different molds are used according to the needs of different shapes, and different instruments are used to achieve continuous traction and fixed-distance cutting, and rapid molding and cutting are performed, and no winding is required for fixing. In combination with the polarity processing method provided in this case, not only can the processing efficiency of the equipment be improved, but also the structure is simple and the cleaning and disassembly are convenient.

[0030] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and a suitable controller should be selected according to the actual situation to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and does not explain the electrical control.

[0031] Embodiment: According to the specification attached Figure 1-2 It can be seen that this case is a production line for bending fiber reinforced composite materials, including a yarn rack 1, a shaping table 5, a post-curing oven 6, a bending traction machine 7 and a support rack 9, and their connection relationship and position relationship are as follows: the yarn rack 1 is installed on one side of the shaping table 5, the support rack 9 is installed on one side of the shaping table 5 and corresponds to the yarn rack 1, the post-curing oven 6 is installed on the shaping table 5, the end of the yarn rack 1 is connected to a dehumidifier 2, a dipping box 3 is provided between the yarn rack 1 and the shaping table 5, a mold 4 is provided at the end of the shaping table 5, the mold 4 is located in the post-curing oven 6, and a corresponding support rack 9 is provided on the shaping table 5. There is a curved cutting saw 8, one end of which is movably connected to the shaping table 5, a curved traction machine 7 is installed on the shaping table 5 and is located between the curved cutting saw 8 and the post-curing oven 6, a tensioner 101 is installed on the yarn outlet of the yarn frame 1, and a front support 501 and a rear support 502 are respectively provided on the shaping table 5 on the side opposite to the dipping box 3 and fixed to the outside of the mold 4, a guide roller 601 and a heating tube 602 are installed inside the post-curing oven 6, and the mold 4 can be made into different curvatures according to the product, and porcelain beads are installed at the inlet and outlet of the dehumidifier 2 and heated by an infrared heating tube 602.

[0032] In the specific implementation process, the composite material is formed according to the following steps: yarns are installed on the yarn rack 1, and the yarns are arranged neatly and orderly through the yarn threading plate on the yarn rack 1. A tensioner 101 is installed at the yarn outlet, and the tension can be adjusted according to the pultrusion situation. Ceramic beads are installed at the inlet and outlet of the dehumidifier 2 to facilitate the passage of the yarn without causing yarn hanging, fuzzing and the like. Infrared heating tube 602 is used for heating, and the temperature of the dehumidifier 2 is between 70-80°C. Since infrared heating is radiation heating, the yarn can be directly heated with fast heating speed and high heat conversion rate. The dipping box 3 is used to store resin to facilitate the mixing of yarn and resin and ensure that the yarn is completely soaked. The mold 4 is used for molding and curing of the product. The cavity can be made into different curvatures according to the product to ensure the pultrusion of the curved profile. The shaping table 5 is used to fix and adjust the position of the mold 4 and to implement the addition of the mold 4. Heat and temperature control, etc., a workbench is installed on the shaping table 5, and front and rear supports 502 of the mold 4 are installed on the workbench. Lateral adjustment plates are installed on both sides of the support to facilitate the adjustment of the mold 4, and an optical axis is installed in the middle position of the rear mold 4 support to facilitate the positioning and adjustment of the mold 4. A post-curing oven 6 is placed on the shaping table 5, which is an upper and lower body structure, which is convenient for trial machine threading and checking the molding and curing of the product. A guide roller 601 and a heating tube 602 are installed inside the post-curing oven 6. The guide roller 601 can be adjusted according to the curvature of the product. The heating tube 602 is used to ensure the later curing and molding of the product. The drying temperature is not higher than 100°C. The bending traction machine 7 is used to continuously pull the product to ensure continuous production of the product. The bending cutting saw 8 is used to cut the bent profiles. The bracket 9 is used to inspect and store the cut profiles, which is convenient for packaging and warehousing.

[0033] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. A production line for curved fiber reinforced composite materials, comprising a creel (1), a shaping table (5), a post-curing oven (6), a curved traction machine (7) and a support frame (9), characterized in that: The yarn frame (1) is installed on one side of the shaping table (5), the support frame (9) is installed on one side of the shaping table (5) and corresponds to the yarn frame (1), the post-curing oven (6) is installed on the shaping table (5), the end of the yarn frame (1) is connected to a dehumidifier (2), a dipping box (3) is provided between the yarn frame (1) and the shaping table (5), a mold (4) is provided at the end of the shaping table (5), the mold (4) is located in the post-curing oven (6), a bending cutting saw (8) is provided on the shaping table (5) corresponding to the support frame (9), one end of the bending cutting saw (8) is movably connected to the shaping table (5), and the bending traction machine (7) is installed on the shaping table (5) and is located between the bending cutting saw (8) and the post-curing oven (6).

2. A production line for curved fiber reinforced composite materials according to claim 1, characterized in that: A tensioner (101) is installed on the yarn outlet of the yarn frame (1).

3. A production line for curved fiber reinforced composite materials according to claim 1, characterized in that: A front support (501) and a rear support (502) are respectively provided on the shaping table (5) on one side relative to the dipping box (3) and are fixed to the outside of the mold (4).

4. The production line of curved fiber reinforced composite materials according to claim 1, characterized in that: The post-curing oven (6) is internally installed with guide rollers (601) and heating tubes (602).

5. The production line of curved fiber reinforced composite materials according to claim 1, characterized in that: The mold (4) can be made into different curvatures according to the product.

6. The production line of curved fiber reinforced composite materials according to claim 1, characterized in that: The inlet and outlet of the dehumidifier (2) are equipped with porcelain beads for heating by infrared heating tubes (602).

7. A method for forming a curved fiber reinforced composite material, characterized in that: The following steps are involved: Step S1, putting on line, step S2, dehumidification, step S3, dipping, step S4, forming and curing, step S5, drying, step S6, pulling, step S7, cutting, step S8, inspection and storage; Step S1: placing a yarn roll on a yarn rack (1), passing the yarn through a tensioner (101) from a yarn outlet of the yarn rack (1), and the tensioner (101) can adjust the tension according to the pulling and extrusion conditions; Step S2: The inlet and outlet of the dehumidifier (2) are equipped with ceramic beads for the yarn to pass through, and the dehumidifier (2) is provided with an infrared heating tube (602) to heat the yarn; Step S3: Resin is stored in the dipping box (3), and the yarn passes through the resin in the dipping box (3) after being dehumidified; Step S4: the yarn passes through the cavity of the mold (4) and is shaped by the pultrusion effect of the cavity; Step S5: After the yarn passes through the mold (4), it is heated and fixed in a curing oven; Step S6: Continuously pulling the product by means of a bending pulling machine (7) to maintain the continuity of production; Step S7: using a curved cutting saw (8) to cut the curved profile to ensure the length of the profile at a time; Step S8: The cut profiles are stored on the support rack (9), inspected, and then packaged and stored.

8. The method for forming a curved fiber reinforced composite material according to claim 7, characterized in that: The drying temperature in step S5 is not higher than 100°C.

9. The method for forming a curved fiber reinforced composite material according to claim 7, characterized in that: In the step S4, the cavity of the mold (4) can be made into different curvatures according to the product, and the molding shape of the material can be changed by replacing the mold (4).

10. The method for forming a curved fiber reinforced composite material according to claim 7, characterized in that: In step S2, the temperature of the dehumidifier (2) is between 70-80°C.

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