An RTM continuous glass fiber reinforced concrete blast door forming device

Abstract

This utility model discloses an RTM continuous glass fiber reinforced concrete (RTM) air defense door molding device, including an upper mold and a lower mold. The lower mold has a working cavity in the middle. The top plane of the upper mold has a frame, a working surface, and a sealing ring. A groove is provided between the frame and the sealing ring, and a vacuum port for vacuuming is provided in the groove. An injection port is provided in the center of the working surface, and vacuum ports are provided at both ends of the working surface. Both the injection port and the vacuum port are through holes. Using this utility model, the sealed space structure formed by the upper mold with the injection port is used to first lay different types of continuous fibers in the lower mold according to the product design requirements. The upper mold is then closed to form a sealed cavity. Then, resin prepared in a certain proportion is introduced through the injection port, and the vacuum is removed. After the resin cures, an integral air defense protective device is formed. The production cycle is within one hour. The advantages are that it is integrally molded in one piece, with a beautiful appearance, high strength, and high efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of resin molding technology, and more specifically, it relates to an RTM continuous glass fiber blast door molding device. Background Technology

[0002] RTM (Resin Transfer Molding), also known as resin transfer molding or resin die casting, refers to a process technology in which low-viscosity resin flows and impregnates reinforcing materials in a closed mold, then cures and forms the final product. It belongs to the liquid composite molding technology within fiberglass / composite material molding. The principle of modern industrial RTM is that the resin and catalyst, supplied by a pump in a specific ratio, are uniformly mixed in a static mixer and then injected into a closed mold with a properly laid-out pre-formed reinforcing material. The mold must have peripheral sealing and fastening to ensure smooth resin flow before curing.

[0003] The current traditional method of construction is to first weld the door frame, then tie the internal steel bars, and then pour concrete. The process is complicated and there are many quality control points. Because the concrete needs to solidify, the initial setting time is 7 hours, and it takes about a month to reach the design strength. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an RTM continuous glass fiber blast door forming device that can be rapidly formed.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An RTM continuous glass fiber reinforced concrete blast door forming device includes an upper mold and a lower mold. The lower mold has a working cavity in the middle. The top plane of the upper mold has a frame, a working surface and a sealing ring. A groove is provided between the frame and the sealing ring. A vacuum port for vacuuming is provided in the groove. An injection port is provided in the center of the working surface. Vacuum ports are provided at both ends of the working surface. Both the injection port and the vacuum port are through holes.

[0007] This utility model discloses an RTM continuous glass fiber blast door forming device, wherein the upper mold and the lower mold are fixed by snap-fit ​​connection after being closed.

[0008] This utility model discloses an RTM continuous glass fiber civil defense door molding device, wherein the injection port is to be injected with resin.

[0009] This utility model discloses an RTM continuous glass fiber civil defense door forming device, wherein the working cavity is provided with reserved holes, which are arranged symmetrically and parallelly.

[0010] This utility model discloses an RTM continuous glass fiber blast door forming device, wherein the corners of the frame and the sealing ring are both designed with rounded corners.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] This is a sealed space structure consisting of upper and lower molds with injection ports. First, continuous fibers are laid in the lower mold according to design requirements. Then, the upper mold is closed to form a sealed cavity. Next, resin prepared in a specific ratio is introduced through the injection ports, and the vacuum is removed. After the resin cures, a monolithic civil defense protective device is formed. The production cycle is less than one hour. Its advantages include one-piece molding, beautiful appearance, high strength, and high efficiency.

[0013] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0014] The following is a brief explanation of the contents of each of the accompanying drawings and the markings in the drawings:

[0015] Figure 1 This is a schematic diagram of the lower mold of this utility model;

[0016] Figure 2 This is a schematic diagram of the upper mold of this utility model;

[0017] The markings in the diagram are: 1. Lower mold; 2. Upper mold; 3. Pre-drilled hole; 4. Injection port; 5. Frame; 6. Sealing ring; 7. Vacuum port; 8. Groove. Detailed Implementation

[0018] The following description, with reference to the accompanying drawings, further details the specific implementation methods of this utility model, including the shape and structure of each component, the relative positions and connections between the parts, the function and working principle of each part, the manufacturing process, and the operation and use methods, so as to help those skilled in the art to have a more complete, accurate, and in-depth understanding of the utility model concept and technical solution.

[0019] like Figure 1 and Figure 2The RTM continuous glass fiber reinforced concrete door forming device shown includes an upper mold 2 and a lower mold 1. The lower mold 1 has a working cavity in the middle. The top plane of the upper mold 2 has a frame 5, a working surface and a sealing ring 6. A groove 8 is provided between the frame 5 and the sealing ring 6. A vacuum port 7 for vacuuming is provided in the groove 8. An injection port 4 is provided in the center of the working surface. Vacuum ports 7 are provided at both ends of the working surface. Both the injection port 4 and the vacuum port 7 are through holes. After the upper mold 2 and the lower mold 1 are closed, they are fixed by a snap-fit ​​connection. Resin is injected into the injection port 4. The working cavity has reserved holes 3, which are symmetrically and parallelly arranged. The corners of the frame 5 and the sealing ring 6 are all designed with rounded corners.

[0020] It should be noted that the working cavity has a reserved hole 3 for door leaf accessories, such as bearings and locks, which can be set according to the design drawings.

[0021] Both injection port 4 and vacuum port 7 are through holes because after the upper and lower molds are closed, the middle part is the internal structure of the fiber and the product. Resin needs to be injected and cured before the product can be formed. The resin needs to penetrate the working surface of the upper mold 2 and fill the sealed cavity with resin from injection port 4.

[0022] Working principle and method

[0023] Step 1: Place the required embedded parts for the product in the lower mold 1.

[0024] Step 2: Place the internal structural filling material of the product according to the design requirements of the drawings, and wrap the filling material with fiber cloth.

[0025] Step 3: Lay fiber cloth according to the protection level requirements of civil defense products.

[0026] Step 4: Close the mold. Connect and secure the upper and lower molds with clips.

[0027] Step 5: Vacuuming. Connect the prepared resin to the injection port 4 and the external resin tank through the pipe; connect the vacuum port 7 to the vacuum equipment, turn on the vacuum equipment, and the resin will be automatically injected into the working cavity. After the resin fills the mold cavity, wait for it to cure.

[0028] Step 6: Demolding, removing the injection pipe and vacuum port 4, opening the upper and lower mold clips, and using a pneumatic device to eject the product from the mold cavity.

[0029] Step 7: Label the product for warehousing. Label the product model and grade, and then put it into the warehouse.

[0030] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. An RTM continuous glass fiber civil defense door forming device comprising an upper mold and a lower mold, characterized in that, The lower mold is provided with a working cavity; the top plane of the upper mold is provided with a frame, a working surface and a sealing ring, wherein a groove is arranged between the frame and the sealing ring, a vacuum suction port for vacuum suction is arranged in the groove, the center of the working surface is provided with an injection port, and the two ends of the working surface are provided with vacuum suction ports; the injection port and the vacuum suction ports are through holes.

2. The RTM continuous glass fiber civil defense door forming device according to claim 1, wherein, After the upper mold and the lower mold are combined, the upper mold and the lower mold are fixed by using a buckle connection.

3. The RTM continuous glass fiber civil defense door forming device according to claim 1, characterized in that, The resin needs to be injected into the injection port.

4. The RTM continuous glass fiber civil defense door forming device according to claim 1, characterized in that, The working cavity is internally provided with a reserved hole, and the reserved holes are symmetrically and parallelly arranged.

5. The RTM continuous glass fiber civil defense door forming device according to claim 1, characterized in that, The corners of the frame and the sealing ring are designed with round corners.

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