Glass fiber reinforced plastic shell machining demolding device
By using a cylinder-driven upper cover shell in conjunction with a heat-conducting plate and an electric push rod to push the demolding assembly, uniform heating and precise pressure are achieved on the fiberglass shell, solving the problems of mold wear and scratches in traditional demolding methods, and improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG MANTE ENVIRONMENTAL PROTECTION EQUIP CO LTD
- Filing Date
- 2025-05-09
- Publication Date
- 2026-05-01
AI Technical Summary
Traditional manual demolding methods and simple demolding tools are difficult to apply force evenly, which can easily scratch the surface of the fiberglass shell. Existing demolding methods also have a large impact on the mold, which leads to mold wear and deformation and reduces demolding efficiency.
The upper cover shell, driven by a cylinder, works in conjunction with a heat-conducting plate, with heating wires providing heat. Reinforced springs and guide plates ensure smooth movement of the upper cover shell. Combined with an electric push rod-driven ejector assembly, precise control and uniform pressure are achieved, avoiding damage to the mold and the product.
It improves the molding quality and demolding efficiency of fiberglass shells, extends the service life of molds, and enhances production efficiency.
Smart Images
Figure CN224183498U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fiberglass shell processing technology, and in particular to a demolding device for fiberglass shell processing. Background Technology
[0002] Fiberglass reinforced plastic (FRP) is widely used in aerospace, automotive, shipbuilding, construction, and electronics industries due to its outstanding advantages such as high strength, light weight, corrosion resistance, and excellent insulation properties. Its shells are usually formed using molds, and the demolding process is extremely critical, directly affecting product quality and production efficiency. However, current traditional manual demolding methods or simple demolding tools have obvious defects. Manual force is difficult to apply evenly, which can easily scratch the surface of the FRP shell during demolding. At the same time, existing demolding methods exert a large impact on the mold, leading to mold wear and deformation, and also reducing demolding efficiency. Utility Model Content
[0003] The main purpose of this utility model is to provide a demolding device for processing fiberglass shells, which can effectively solve the problems in the background art.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] A demolding device for processing fiberglass shells includes a demolding table, a bottom mold processing structure fixedly connected to the upper middle part of the demolding table, a back frame fixedly connected to the upper rear part of the demolding table, and an upper mold processing structure fixedly connected to the upper middle part of the back frame.
[0006] Preferably, the upper mold processing structure includes a cylinder and a heat-conducting plate. The cylinder is fixedly connected to the upper end of the rear frame. The output end of the cylinder passes through the middle of the upper end of the rear frame and is fixedly connected to an upper cover. A heating wire is provided on the inner upper wall of the upper cover. Screws are threaded and movably connected to the upper circumference of the upper cover. An upper pressure block is fixedly connected to the lower end of the heat-conducting plate. A slot is opened at the lower end of the heat-conducting plate. Rectangular holes are opened at the upper left and upper right of the upper cover. Reinforcing springs are fixedly connected to the lower left and lower right of the upper cover. Guide plates are fixedly connected to the ends of the two reinforcing springs away from the upper cover.
[0007] Preferably, the heat-conducting plate is located inside the upper cover and is tightly abutted against the heating wire, and the upper cover is detachably connected to the heat-conducting plate by four screws.
[0008] Preferably, an operation key is fixedly connected to the front end of the demolding table, and guide rectangular rods are fixedly connected to the upper left and upper right parts of the demolding table.
[0009] Preferably, the upper cover shell is movably connected to two guide rectangular rods through two rectangular holes, the two reinforcing springs are movably sleeved with the two guide rectangular rods, and the two guide plates are movably connected to the two guide rectangular rods.
[0010] Preferably, the bottom mold processing structure includes a base frame, the lower left and lower right parts of the base frame are fixedly connected to the upper left and upper right parts of the demolding table, respectively, the upper end of the base frame is fixedly connected to a lower mold cavity, the lower inner wall of the lower mold cavity has an elliptical plate cavity in the middle, the lower inner wall of the lower mold cavity has two top plate cavities in the lower left and lower inner right parts, the four top plate cavities communicate with the interior of the elliptical plate cavity, and the lower middle part of the base frame is fixedly connected to an ejector demolding assembly, the upper part of the ejector demolding assembly is located inside the lower mold cavity.
[0011] Preferably, the ejector demolding assembly includes an electric push rod, which is fixedly connected to the lower end of the base frame. The output end of the electric push rod passes through the middle of the lower end of the base frame and is fixedly connected to a top plate. Two push rods are fixedly connected to the left and right ends of the top plate.
[0012] Preferably, the top plate is located in the lower part of the elliptical plate cavity, and the four top rods and four conical top blocks are located in the four top plate cavities. The upper end surfaces of the four top rods and four conical top blocks are flush with the inner lower wall surface of the lower mold cavity.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] 1. In this utility model, the cylinder can precisely control the lifting and lowering of the upper cover shell, realize stable pressure on the material inside the mold, and ensure the accuracy of the molding process. The heating wire generates heat, which is evenly transferred to the lower part through the tightly abutting heat-conducting plate, effectively improving the plasticity of the material and promoting the improvement of molding quality. The reinforcing spring and the guide plate, together with the guide rectangular rod, play a role in buffering and precise guidance, so that the upper cover shell moves smoothly, avoids uneven force application, and prevents damage to the product during the pressing process. The detachable connection between the upper cover shell and the heat-conducting plate facilitates daily maintenance and component replacement. The overall structure works in concert, improving the efficiency of FRP shell processing and product quality.
[0015] 2. In this utility model, the base frame is firmly connected to the demolding table, providing solid support for the entire bottom mold. The lower mold cavity, as a key part of molding, has specially opened elliptical plate cavities and top plate cavities, which are cleverly matched with the ejector demolding components. The electric push rod precisely controls the rise of the top plate, driving the ejector rod and the conical ejector block to smoothly eject the molded product from the bottom. This design effectively avoids the strong impact force of traditional demolding on the mold, greatly reduces the risk of mold wear and deformation, and extends the service life of the mold. At the same time, the precise ejection method improves demolding efficiency, ensures smooth production process, and helps to improve overall production efficiency. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of a fiberglass shell processing demolding device according to the present invention;
[0017] Figure 2 This is a schematic diagram of the overall upper mold processing structure of a fiberglass shell processing demolding device according to the present invention;
[0018] Figure 3 This is a schematic diagram of the overall structure of the bottom mold processing device for a fiberglass shell processing demolding device according to the present invention;
[0019] Figure 4 This is a schematic diagram of the overall structure of the top-moving demolding component of a fiberglass shell processing demolding device according to the present invention.
[0020] In the diagram: 1. Demolding table; 2. Operation key; 3. Guide rectangular rod; 4. Bottom mold processing structure; 5. Back frame; 6. Upper mold processing structure; 41. Base frame; 42. Lower mold cavity; 43. Elliptical plate cavity; 44. Top plate cavity; 45. Ejector demolding assembly; 61. Cylinder; 62. Upper cover shell; 63. Heating wire; 64. Screw; 65. Heat-conducting plate; 66. Upper pressure block; 67. Slot; 68. Rectangular hole; 69. Reinforcing spring; 70. Guide plate; 451. Electric push rod; 452. Top plate; 453. Ejector rod; 454. Conical ejector block. Detailed Implementation
[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0024] Please see Figure 1-4 This utility model provides a technical solution:
[0025] A demolding device for processing fiberglass shells includes a demolding table 1, a bottom mold processing structure 4 fixedly connected to the upper middle part of the demolding table 1, a back frame 5 fixedly connected to the upper rear part of the demolding table 1, and an upper mold processing structure 6 fixedly connected to the upper middle part of the back frame 5.
[0026] In this embodiment, the upper mold processing structure 6 includes a cylinder 61 and a heat-conducting plate 65. The cylinder 61 is fixedly connected to the upper end of the back frame 5. The output end of the cylinder 61 passes through the middle of the upper end of the back frame 5 and is fixedly connected to an upper cover shell 62. A heating wire 63 is provided on the inner upper wall of the upper cover shell 62. Screws 64 are threaded and movably connected to the upper end of the upper cover shell 62. An upper pressure block 66 is fixedly connected to the lower end of the heat-conducting plate 65. A slot 67 is opened at the lower end of the heat-conducting plate 65. Rectangular holes 68 are opened at the upper left and upper right ends of the upper cover shell 62. Reinforcing springs 69 are fixedly connected to the lower left and lower right ends of the upper cover shell 62. Two reinforcing springs 69 are fixedly connected to guide plates 70 at the ends away from the upper cover shell 62. The heat-conducting plate 65 is located inside the upper cover shell 62 and is tightly abutted against the heating wire 63. The upper cover shell 62 is detachably connected to the heat-conducting plate 65 by four screws 64. An operation key 2 is fixedly connected to the front end of the demolding table 1. Guide rectangular rods 3 are fixedly connected to the upper left and upper right ends of the demolding table 1. The upper cover shell 62 is movably connected to the two guide rectangular rods 3 through two rectangular holes 68. The two reinforcing springs 69 are movably sleeved with the two guide rectangular rods 3. The two guide plates 70 are movably connected to the two guide rectangular rods 3.
[0027] The above scheme involves starting the device via operation key 2, driving cylinder 61, whose output end pushes the upper cover shell 62 downward along the guide rectangular rod 3. The heating wire 63 on the inner upper wall of the upper cover shell 62 heats up, and the heat is conducted to the heat-conducting plate 65 that is in contact with it. Then, the upper pressure block 66 acts on the mold and raw materials. The reinforcing spring 69 and guide plate 70 ensure that the upper cover shell 62 moves smoothly and the pressure is applied evenly, thus avoiding the problem of uneven manual force application. The even heating and pressure application can effectively prevent scratches on the surface of the fiberglass shell due to uneven force during demolding, thus improving the surface quality of the product. At the same time, the upper cover shell 62 and the heat-conducting plate 65 are detachably connected, which also facilitates maintenance and replacement of parts.
[0028] In this embodiment, the bottom mold processing structure 4 includes a base frame 41. The lower left and lower right parts of the base frame 41 are fixedly connected to the upper left and upper right parts of the demolding table 1, respectively. A lower mold cavity 42 is fixedly connected to the upper end of the base frame 41. An elliptical plate cavity 43 is formed in the middle of the lower inner wall of the lower mold cavity 42. Two top plate cavities 44 are formed in both the lower left and lower right parts of the lower inner wall of the lower mold cavity 42. The four top plate cavities 44 communicate with the interior of the elliptical plate cavity 43. An ejector demolding assembly 45 is fixedly connected to the lower middle of the base frame 41. The upper part of the ejector demolding assembly 45 is located in the lower mold cavity. Inside 42, the ejector demolding assembly 45 includes an electric push rod 451, which is fixedly connected to the lower end of the base frame 41. The output end of the electric push rod 451 passes through the middle of the lower end of the base frame 41 and is fixedly connected to a top plate 452. Two push rods 453 are fixedly connected to the left and right ends of the top plate 452. The top plate 452 is located in the lower part of the elliptical plate cavity 43. The four push rods 453 and the four conical push blocks 454 are located in the four top plate cavities 44. The upper surfaces of the four push rods 453 and the four conical push blocks 454 are flush with the inner lower wall of the lower mold cavity 42.
[0029] Through the above scheme: when demolding is required, the electric push rod 451 in the ejector demolding assembly 45 is activated. The electric push rod 451 starts working, and its output end slowly pushes the top plate 452. Since the top plate 452 is located in the lower part of the elliptical plate cavity 43, it will rise smoothly along the track of the elliptical plate cavity 43. As the top plate 452 rises, it drives the push rods 453 fixedly connected to its left and right ends to rise synchronously. The push rods 453 then push the conical push block 454 located in the top plate cavity 44, and finally smoothly eject the molded fiberglass product from the lower mold cavity 42. Therefore, compared with the traditional demolding method, this ejection method, which precisely controls the force and speed through the electric push rod 451, greatly reduces the impact force on the mold. The smooth demolding process effectively reduces the risk of wear and deformation of the mold due to uneven force or excessive impact, while improving demolding efficiency, ensuring the service life of the mold, and helping to improve overall production efficiency.
[0030] It should be noted that this utility model is a demolding device for processing fiberglass shells. During use, the device is first activated via operation key 2. In the upper mold processing structure 6, cylinder 61 pushes the upper cover shell 62 downwards along the guide rectangular rod 3. Heating wire 63 inside the upper cover shell 62 generates heat, which is transferred through a heat-conducting plate 65 in close contact with it. The heat is then applied to the fiberglass raw material inside the mold by the upper pressure block 66. The reinforcing spring 69 and guide plate 70 ensure a smooth pressing process, achieving uniform heating and pressure, which is beneficial for molding. Regarding the bottom mold processing structure 4… When the product needs to be demolded, the electric push rod 451 in the ejector demolding assembly 45 is activated. Its output end pushes the top plate 452 to rise in the elliptical plate cavity 43, which in turn drives the ejector rod 453 and pushes the conical ejector block 454 to smoothly eject the product from the lower mold cavity 42. Thus, the cylinder 61, heating wire 63 and other components in the upper mold processing structure 6 work together to achieve uniform heating and pressure. The bottom mold processing structure 4 uses the electric push rod 451 and other components to smoothly eject the product, effectively improving the product quality, reducing mold wear, and significantly improving the demolding efficiency of the fiberglass shell.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A demolding device for processing fiberglass shells, comprising a demolding table (1), characterized in that: The upper middle part of the demolding table (1) is fixedly connected to the bottom mold processing structure (4), the upper rear part of the demolding table (1) is fixedly connected to the back frame (5), and the upper middle part of the back frame (5) is fixedly connected to the upper mold processing structure (6). The upper mold processing structure (6) includes a cylinder (61) and a heat-conducting plate (65). The cylinder (61) is fixedly connected to the upper end of the back frame (5). The output end of the cylinder (61) passes through the middle of the upper end of the back frame (5) and is fixedly connected to an upper cover (62). A heating wire (63) is provided on the inner upper wall of the upper cover (62). Screws (64) are threaded and movably connected to the upper end of the upper cover (62). The heat-conducting plate... The lower end of the plate (65) is fixedly connected to an upper pressure block (66), the lower end of the heat-conducting plate (65) is provided with a slot (67), the upper left and upper right parts of the upper cover (62) are provided with through rectangular holes (68), the lower left and lower right parts of the upper cover (62) are fixedly connected to reinforcing springs (69), and the ends of the two reinforcing springs (69) away from the upper cover (62) are fixedly connected to guide plates (70).
2. The fiberglass shell processing demolding device according to claim 1, characterized in that: The heat-conducting plate (65) is located inside the upper cover (62) and is tightly abutted against the heating wire (63). The upper cover (62) is detachably connected to the heat-conducting plate (65) by four screws (64).
3. The fiberglass shell processing demolding device according to claim 1, characterized in that: The front end of the demolding table (1) is fixedly connected to an operation key (2), and the upper left and upper right parts of the demolding table (1) are both fixedly connected to guide rectangular rods (3).
4. The fiberglass shell processing demolding device according to claim 1, characterized in that: The upper cover (62) is movably connected to the two guide rectangular rods (3) through two rectangular holes (68), the two reinforcing springs (69) are movably sleeved with the two guide rectangular rods (3), and the two guide plates (70) are movably connected with the two guide rectangular rods (3).
5. The fiberglass shell processing demolding device according to claim 1, characterized in that: The bottom mold processing structure (4) includes a base frame (41). The lower left and lower right parts of the base frame (41) are fixedly connected to the upper left and upper right parts of the demolding table (1), respectively. The upper end of the base frame (41) is fixedly connected to a lower mold cavity (42). An elliptical plate cavity (43) is opened in the middle of the inner lower wall of the lower mold cavity (42). Two top plate cavities (44) are opened in the lower left and lower right parts of the inner lower wall of the lower mold cavity (42). The four top plate cavities (44) communicate with the interior of the elliptical plate cavity (43). A push demolding assembly (45) is fixedly connected in the middle of the lower end of the base frame (41). The upper part of the push demolding assembly (45) is located inside the lower mold cavity (42).
6. The fiberglass shell processing demolding device according to claim 5, characterized in that: The ejector demolding assembly (45) includes an electric push rod (451), which is fixedly connected to the lower end of the base frame (41). The output end of the electric push rod (451) passes through the middle of the lower end of the base frame (41) and is fixedly connected to a top plate (452). Two push rods (453) are fixedly connected to the left and right ends of the top plate (452).
7. A demolding device for processing fiberglass shells according to claim 6, characterized in that: The top plate (452) is located in the lower part of the elliptical plate cavity (43). The four top rods (453) and the four conical top blocks (454) are located in the four top plate cavities (44). The upper end surfaces of the four top rods (453) and the four conical top blocks (454) are flush with the inner lower wall surface of the lower mold cavity (42).