Pultrusion die for producing polyphenol reinforced composite material

Abstract

The utility model discloses a pultrusion die for producing a polyphenol reinforced composite material, relates to the field of reinforced composite material production, and aims to solve the problems that a glue extrusion channel and a forming cavity are formed by a mode that an upper die and a lower die are closed in a pultrusion forming die in the prior art, but a gap is formed between the upper die and the lower die after the upper die and the lower die are closed; the pultrusion quality of the carbon fiber is influenced. A feeding port is formed in the middle of the front end of the material collecting device, an inserting port is formed in the middle of the rear end of the material collecting device, the lower end of the material collecting device is connected with a material collecting box, the rear end of the material collecting device is fixedly connected with a cylindrical pultrusion mold, and a forming cavity is formed in the middle of the interior of the cylindrical pultrusion mold. The front end of the cylindrical pultrusion die penetrates through the insertion opening and extends into the material collecting device, and a conical glue extruding channel is formed in the middle of the front end face of the cylindrical pultrusion die.

Description

Technical Field

[0001] The utility model relates to the field of production of reinforced composite materials, in particular to a pultrusion die for production of polyphenol reinforced composite materials. Background Art

[0002] A reinforced composite material is a material composed of two or more different materials, one of which is a reinforcing material and the other is a matrix material. The reinforcing material is usually a high-performance synthetic material such as carbon fiber, glass fiber, or aromatic polymer, while the matrix material is usually a metal, ceramic, or plastic. The presence of the reinforcing agent can greatly improve the strength and stiffness of the material while maintaining a low weight. Therefore, reinforced composites are widely used in aerospace, automotive, sporting goods, and construction materials. The production of polyphenol reinforced composites requires pultrusion of materials such as carbon fiber.

[0003] For example, the authorization announcement number is CN 215921330 U, a carbon fiber composite material pultrusion die, which relates to the field of mold manufacturing technology. A carbon fiber composite material pultrusion die, including an upper die and a lower die, the upper die includes an upper extrusion section and an upper molding section connected in sequence, the lower die includes a lower extrusion section and a lower molding section connected in sequence, the upper extrusion section and the extrusion section are connected to form an extrusion channel, the upper molding section and the lower molding section are connected to form a molding cavity, the extrusion channel is connected to the molding cavity, and a plurality of extrusion holes are evenly spaced on the lower extrusion section, and the above-mentioned extrusion holes are connected to the extrusion channel. The utility model can simultaneously perform yarn extrusion and molding of carbon fiber materials, reducing the use of extrusion devices and greatly saving time costs and equipment costs.

[0004] However, in the above technology, the upper mold and the lower mold are closed to form the extrusion channel and the molding cavity, but there is still a gap between the upper mold and the lower mold after they are closed, which affects the pultrusion molding quality of the carbon fiber; therefore, the market urgently needs to develop a pultrusion mold for the production of polyphenol reinforced composite materials to help people solve the existing problems. Utility Model Content

[0005] The purpose of the utility model is to provide a pultrusion die for the production of polyphenol-reinforced composite materials, so as to solve the problem in the prior art proposed in the above-mentioned background technology that the pultrusion molding die adopts the method of closing the upper mold and the lower mold to form the extrusion channel and the molding cavity, but there is still a gap between the upper mold and the lower mold after closing, which affects the pultrusion molding quality of the carbon fiber.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a pultrusion die for the production of polyphenol-reinforced composite materials, comprising a material receiving device and a cylindrical pultrusion die, a material feed port being provided in the middle of the front end of the material receiving device, an insertion interface being provided in the middle of the rear end of the material receiving device, a material receiving box being connected to the lower end of the material receiving device, a cylindrical pultrusion die being fixedly connected to the rear end of the material receiving device, a forming cavity being provided in the middle of the interior of the cylindrical pultrusion die, the front end of the cylindrical pultrusion die extending through the insertion interface to the interior of the material receiving device, and a conical rubber extrusion channel being provided in the middle of the front end surface of the cylindrical pultrusion die.

[0007] Preferably, the front and rear ends of the lower end of the material receiving device are both provided with T-shaped connecting grooves, and the front and rear ends of the upper end of the material receiving box are both fixedly connected with T-shaped limiting parts.

[0008] Preferably, the material receiving device and the material receiving box are connected by two T-shaped limiting parts that slide into two T-shaped connecting grooves respectively.

[0009] Preferably, a sealing ring is provided between the plug-in port and the outer end face of the cylindrical pultrusion die, and a trapezoidal cross-section annular groove is provided at the front end of the outer end face of the cylindrical pultrusion die.

[0010] Preferably, a plurality of internal threaded columns are fixedly connected in an annular array on the rear end surface of the material receiving device.

[0011] Preferably, an annular connecting disk is fixedly connected to the outer end surface of the cylindrical pultrusion die, and a plurality of through holes are provided in an annular array on the annular connecting disk.

[0012] Preferably, the multiple internal threaded columns on the rear end face of the material receiving device are respectively inserted into the multiple through holes on the annular connecting plate, and the annular connecting plate and the material receiving device are respectively inserted into the internal threads of the multiple internal threaded columns and fixed by multiple bolts, and a gasket is provided between the bolts and the rear end face of the annular connecting plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. In the utility model, through the setting of a cylindrical pultrusion die, the rear end of the material receiving device is fixedly connected to the cylindrical pultrusion die, a molding cavity is provided in the middle of the cylindrical pultrusion die, the front end of the cylindrical pultrusion die extends to the interior of the material receiving device through the plug interface, and a conical glue extrusion channel is provided in the middle of the front end surface of the cylindrical pultrusion die. When the carbon fiber yarn enters the molding cavity from the conical glue extrusion channel, the excess adhesive on the carbon fiber yarn is squeezed out through the conical glue extrusion channel, and the extruded adhesive flows out along the conical glue extrusion channel to the front end of the cylindrical pultrusion die. The carbon fiber yarn is pulled out through the molding cavity to realize the molding process. The cylindrical pultrusion die is integrally formed and placed in a manner that the upper mold and the lower mold are closed. The gap between the upper mold and the lower mold affects the molding of the carbon fiber yarn.

[0015] 2. In the utility model, a trapezoidal cross-section annular groove is provided on the front end of the outer end face of the cylindrical pultrusion die through the arrangement of the trapezoidal cross-section annular groove. The trapezoidal cross-section annular groove blocks the front end face and the outer end face of the cylindrical pultrusion die, so that the extruded adhesive falls directly through the front end face of the cylindrical pultrusion die and does not flow to the outer end face of the cylindrical pultrusion die, thereby facilitating the collection of the extruded adhesive.

[0016] 3. In the utility model, through the setting of the annular connecting disk, multiple internal threaded columns on the rear end face of the receiving device are respectively inserted into the multiple through holes on the annular connecting disk, and the annular connecting disk and the receiving device are respectively inserted into the internal threads of the multiple internal threaded columns by multiple bolts to be fixed. A gasket is provided between the bolts and the rear end face of the annular connecting disk, so that the cylindrical pultrusion die is stably connected to the receiving device, and at the same time, the cylindrical pultrusion die is easy to disassemble, and it is easy to replace the cylindrical pultrusion die with different molding cavities according to different types of carbon fiber yarns. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of a pultrusion die for producing a polyphenol-reinforced composite material according to the present invention;

[0018] Figure 2 It is a side sectional view of the utility model;

[0019] Figure 3 This is a main sectional view of the material receiving device of the present utility model;

[0020] Figure 4 This is an enlarged view of the detail A of the present invention.

[0021] In the figure: 1. Material receiving device; 101. Material feed port; 102. Plug port; 103. Sealing ring; 104. T-shaped connecting groove; 105. Internal threaded column; 2. Material receiving box; 201. T-shaped limiter; 3. Cylindrical pultrusion die; 301. Molding cavity; 302. Conical rubber extrusion channel; 303. Trapezoidal cross-section annular groove; 4. Annular connecting plate; 401. Bolt; 402. Gasket. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] See also Figure 1-4The utility model provides an embodiment: a pultrusion die for producing polyphenol-reinforced composite materials, comprising a material receiving device 1 and a cylindrical pultrusion die 3, a material feeding port 101 being provided in the middle of the front end of the material receiving device 1, an insertion port 102 being provided in the middle of the rear end of the material receiving device 1, a material receiving box 2 being connected to the lower end of the material receiving device 1, a cylindrical pultrusion die 3 being fixedly connected to the rear end of the material receiving device 1, a forming cavity 301 being provided in the middle of the interior of the cylindrical pultrusion die 3, the front end of the cylindrical pultrusion die 3 extending through the insertion port 102 to the interior of the material receiving device 1, and a conical rubber extrusion channel 302 being provided in the middle of the front end surface of the cylindrical pultrusion die 3.

[0024] Furthermore, T-shaped connecting grooves 104 are provided at both the front and rear ends of the lower end of the material receiving device 1 , and T-shaped limiting portions 201 are fixedly connected at both the front and rear ends of the upper end of the material receiving box 2 .

[0025] Furthermore, the material receiving device 1 and the material receiving box 2 are connected by two T-shaped limit parts 201 sliding into two T-shaped connecting grooves 104 respectively, so that the material receiving box 2 can be disassembled from the lower end of the material receiving device 1, which is convenient for processing the excess adhesive collected inside the material receiving box 2.

[0026] Furthermore, a sealing ring 103 is provided between the plug-in port 102 and the outer end face of the cylindrical pultrusion die 3, and a trapezoidal cross-section annular groove 303 is provided at the front end of the outer end face of the cylindrical pultrusion die 3, so that the plug-in port 102 and the cylindrical pultrusion die 3 are sealed. The carbon fiber yarn immersed in the liquid epoxy resin adhesive is extended from the feed port 101 into the interior of the receiving device 1, and is inserted into the internal molding cavity 301 of the cylindrical pultrusion die 3 from the conical extrusion channel 302. When the carbon fiber yarn enters the molding cavity from the conical extrusion channel 302 At 301, the excess adhesive on the carbon fiber yarn is squeezed out through the conical extrusion channel 302, and the extruded adhesive flows out along the conical extrusion channel 302 to the front end of the cylindrical pultrusion die 3, and the front end face and the outer end face of the cylindrical pultrusion die 3 are blocked by the trapezoidal cross-section annular groove 303, so that the extruded adhesive falls directly through the front end face of the cylindrical pultrusion die 3 and does not flow to the outer end face of the cylindrical pultrusion die 3, which is convenient for collecting the extruded adhesive, and the carbon fiber yarn is pulled out through the molding cavity 301 to realize the molding process.

[0027] Furthermore, a plurality of internal threaded columns 105 are fixedly connected in an annular array on the rear end surface of the material receiving device 1 .

[0028] Furthermore, an annular connecting disk 4 is fixedly connected to the outer end surface of the cylindrical pultrusion die 3 , and a plurality of through holes are provided in an annular array on the annular connecting disk 4 .

[0029] Furthermore, a plurality of internal threaded columns 105 on the rear end face of the receiving device 1 are respectively inserted into a plurality of through holes on the annular connecting disk 4, and the annular connecting disk 4 and the receiving device 1 are respectively inserted into the internal threads of the plurality of internal threaded columns 105 by a plurality of bolts 401, and a gasket 402 is provided between the bolts 401 and the rear end face of the annular connecting disk 4, so that the cylindrical pultrusion die 3 is stably connected to the receiving device 1, and at the same time, the cylindrical pultrusion die 3 is convenient for disassembly, and it is convenient to replace the cylindrical pultrusion die 3 with different molding cavities 301 according to different types of carbon fiber yarns.

[0030] Working principle: When in use, the front end of the cylindrical pultrusion die 3 is inserted into the inside of the receiving device 1 through the plug-in interface 102, and a sealing ring 103 is provided between the plug-in interface 102 and the outer end face of the cylindrical pultrusion die 3 to achieve sealing between the plug-in interface 102 and the cylindrical pultrusion die 3. A plurality of internal threaded columns 105 on the rear end face of the receiving device 1 are respectively inserted into the plurality of through holes on the annular connecting disk 4, and the annular connecting disk 4 and the receiving device 1 are respectively inserted into the internal threads of the plurality of internal threaded columns 105 by a plurality of bolts 401. A gasket 402 is provided between the bolt 401 and the rear end face of the annular connecting disk 4, so that the cylindrical pultrusion die 3 is stably connected to the receiving device 1, and at the same time, the cylindrical pultrusion die 3 is convenient for disassembly, and it is convenient to replace the cylindrical pultrusion die 3 with different molding cavities 301 according to different types of carbon fiber yarns. The carbon fiber yarn immersed in liquid epoxy resin adhesive is passed through the inlet. The material port 101 extends into the interior of the material receiving device 1 and is inserted into the internal molding cavity 301 of the cylindrical pultrusion die 3 from the conical extrusion channel 302. When the carbon fiber yarn enters the molding cavity 301 from the conical extrusion channel 302, the excess adhesive on the carbon fiber yarn is squeezed out through the conical extrusion channel 302, and the extruded adhesive flows out along the conical extrusion channel 302 to the front end of the cylindrical pultrusion die 3. A trapezoidal cross-section annular groove 303 is provided at the front end of the outer end face of the cylindrical pultrusion die 3. The trapezoidal cross-section annular groove 303 is used to block the front face and the outer end face of the cylindrical pultrusion die 3, so that the extruded adhesive falls directly through the front face of the cylindrical pultrusion die 3 and does not flow to the outer end face of the cylindrical pultrusion die 3, which is convenient for collecting the extruded adhesive. The carbon fiber yarn is pulled out through the molding cavity 301 to realize the molding process, and the adhesive dripping from the front end of the cylindrical pultrusion die 3 falls into the inside of the material receiving box 2 for collection.

[0031] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A pultrusion die for producing a polyphenol-reinforced composite material, comprising a material receiving device (1) and a cylindrical pultrusion die (3), characterized in that: The receiving device (1) is provided with a feed port (101) in the middle of the front end, and an insertion port (102) is provided in the middle of the rear end of the receiving device (1). The lower end of the receiving device (1) is connected to a receiving box (2). The rear end of the receiving device (1) is fixedly connected to a cylindrical pultrusion die (3). A forming cavity (301) is provided in the middle of the interior of the cylindrical pultrusion die (3). The front end of the cylindrical pultrusion die (3) passes through the insertion port (102) and extends to the interior of the receiving device (1). A conical rubber extrusion channel (302) is provided in the middle of the front end surface of the cylindrical pultrusion die (3).

2. The pultrusion die for producing a polyphenol-reinforced composite material according to claim 1, characterized in that: The front and rear ends of the lower end of the material receiving device (1) are both provided with T-shaped connecting grooves (104), and the front and rear ends of the upper end of the material receiving box (2) are both fixedly connected with T-shaped limiting parts (201).

3. The pultrusion die for producing a polyphenol-reinforced composite material according to claim 2, characterized in that: The material receiving device (1) and the material receiving box (2) are connected to each other by two T-shaped limiting parts (201) sliding into two T-shaped connecting grooves (104) respectively.

4. The pultrusion die for producing a polyphenol-reinforced composite material according to claim 1, characterized in that: A sealing ring (103) is provided between the plug-in port (102) and the outer end face of the cylindrical pultrusion die (3), and a trapezoidal cross-section annular groove (303) is provided at the front end of the outer end face of the cylindrical pultrusion die (3).

5. The pultrusion die for producing a polyphenol-reinforced composite material according to claim 1, characterized in that: The rear end face of the material receiving device (1) is fixedly connected to a plurality of internal threaded columns (105) in an annular array.

6. The pultrusion die for producing a polyphenol-reinforced composite material according to claim 5, characterized in that: An annular connecting disk (4) is fixedly connected to the outer end surface of the cylindrical pultrusion die (3), and a plurality of through holes are provided in an annular array on the annular connecting disk (4).

7. The pultrusion die for producing a polyphenol-reinforced composite material according to claim 6, characterized in that: The plurality of internal threaded columns (105) on the rear end face of the material receiving device (1) are respectively inserted into the interior of the plurality of through holes on the annular connecting disk (4); the annular connecting disk (4) and the material receiving device (1) are connected and fixed by a plurality of bolts (401) respectively inserted into the internal threads of the plurality of internal threaded columns (105); a gasket (402) is provided between the bolts (401) and the rear end face of the annular connecting disk (4).

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