Composite manhole cover forming die

Abstract

The utility model discloses a composite manhole cover forming mold in the technical field of molds. The composite manhole cover forming mold comprises a manhole cover mold and a manhole cover frame mold, the hole cover die comprises two symmetrical C-shaped flanging flat plates, and the two symmetrical C-shaped flanging flat plates are arranged on the bottom flat plate after being in butt joint. The hole cover frame mold comprises an upper cover frame, a middle frame and a lower cover frame, frame openings in the middles of the upper cover frame, the middle frame and the lower cover frame are the same in size, the upper cover frame and the lower cover frame are installed on the upper end face and the lower end face of the middle frame respectively, and smooth demolding is guaranteed while the dimensional precision requirements of surface smoothness, profile tolerance, thickness and the like of a formed product are met.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a forming mold. Background Art

[0002] Carbon fiber-reinforced resin-based composites, characterized by high specific strength, high specific modulus, and strong designability, are a hot topic in materials research. Carbon fiber composite structural components are gradually replacing metal components and have been widely used in recent years in industries such as automotive, aerospace, shipbuilding, sports equipment, and weaponry.

[0003] Manhole covers are commonly found on fishing boats and fiberglass yachts, and serve as protection and sealing. Since metal manhole covers are usually heavy, they may require greater force when opening and closing. Long-term use may cause inconvenience in operation or damage the cover. Metal manhole covers may be affected by chemical corrosion and electrical corrosion. If the cover material reacts chemically with the substance it contacts, or an electrochemical reaction occurs in the electrolyte, the cover may be corroded and damaged. Therefore, there is a huge demand for a composite manhole cover that is light in weight, easy to operate, and has good weather resistance. Therefore, how to design an easy-to-use composite material molding mold to ensure that the molded product meets the dimensional accuracy requirements such as surface finish, contour, thickness, etc., while ensuring smooth demolding, is a topic that technicians in this field need to study. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a composite material manhole cover forming die, which ensures that the surface finish, contour, thickness and other dimensional accuracy requirements of the formed product are met while ensuring smooth demoulding.

[0005] The purpose of the utility model is achieved as follows: a composite material manhole cover forming mold, comprising a manhole cover mold and a manhole cover frame mold;

[0006] The hole cover mold includes two symmetrical C-shaped flanging flat plates, which are butt-jointed and arranged on a bottom flat plate;

[0007] The hole cover frame mold includes an upper cover frame, a middle frame and a lower cover frame. The frame openings in the middle of the upper cover frame, the middle frame and the lower cover frame are the same size. The upper cover frame and the lower cover frame are respectively installed on the upper and lower end surfaces of the middle frame.

[0008] As a further limitation of the present invention, a plurality of reinforcing ribs are provided on the C-shaped flanged flat plate.

[0009] As a further limitation of the present invention, the inner surface of the C-shaped flanged flat plate is an inclined surface.

[0010] As a further limitation of the present invention, the outer surface of the middle frame is an inclined surface.

[0011] Compared with the prior art, the beneficial effects of the present invention are: the mold structure of the present invention is simple, the surface finish of the product can be guaranteed, and the mold is easy to operate in laying and demoulding the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0013] Figure 1 This is a schematic diagram of the structure of the hole cover mold of the utility model.

[0014] Figure 2 This is a schematic structural diagram of the center hole cover frame mold of the utility model.

[0015] Figure 3 This is a side view of the center hole cover frame mold of the utility model.

[0016] Figure 4 This is a schematic diagram of the hole cover structure made by the utility model.

[0017] Figure 5 This is a schematic diagram of the hole cover frame structure made by the utility model.

[0018] Among them, 100 hole cover mold, 101C type flanging plate, 102 bottom plate, 103 reinforcing rib plate, 103a through hole, 200 hole cover frame mold, 201 upper cover frame, 202 middle frame, 203 lower cover frame, 204 threaded hole, 300 hole cover, 400 hole cover frame, A paving area. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] like Figure 1-3 A composite material manhole cover forming mold shown includes a manhole cover mold 100 and a manhole cover frame mold 200;

[0021] The hole cover mold 100 includes two symmetrical C-shaped flanged plates 101, which are butt-jointed and set on a bottom plate 102. 45# steel (HRC26-30) is used for processing.

[0022] The hole cover frame mold 200 includes an upper cover frame 201, a middle frame 202 and a lower cover frame 203. 45# steel (HRC26-30) is used for processing. The frame openings in the middle of the upper cover frame 201, the middle frame 202 and the lower cover frame 203 are the same size. The upper cover frame 201 and the lower cover frame 203 are respectively installed on the upper and lower end surfaces of the middle frame 202.

[0023] Specifically, threaded holes 204 are provided on the upper and lower end surfaces of the middle frame 202, and threaded holes 204 are also provided on the end surfaces of the upper cover frame 201 and the lower cover frame 203. The upper cover frame 201 and the lower cover frame 203 are fixed to the upper and lower ends of the middle frame 202 by screws, and a paving area is formed between the upper cover frame 201, the middle frame 202 and the lower cover frame 203. Figure 1-2 A in the figure is the paving area.

[0024] When the mold is in use, after the hole cover mold 100 is assembled, it is paved along the bottom flat plate 102 to the C-shaped flange flat plate 101, and is cured after paving. When demolding, first remove the C-shaped flange flat plate 101, and then remove the bottom flat plate 102; the hole cover frame mold 200 is assembled, and is paved along the paving area. After paving is completed, it is cured and then demolded. When demolding, first remove the upper cover frame 201 and the lower cover frame 203, and then remove the middle frame 202.

[0025] In summary, the mold structure of the utility model is simple and can ensure the surface smoothness of the product. After trial, it is found that the mold is easy to operate and the product demoulding is easy to operate.

[0026] Furthermore, a plurality of reinforcing ribs 103 are provided on the C-shaped flanged flat plate 101 .

[0027] Specifically, a reinforcing rib plate 103 is provided at the end surface of the C-shaped flanged flat plate 101 , and a through hole 103 a is opened on the reinforcing rib plate 103 . After the two C-shaped flanged flat plates 101 are butt-jointed, bolts are used to fix the two together.

[0028] It should be noted that the design of the reinforcing rib plate 103 can effectively control the shrinkage of the mold.

[0029] Furthermore, the inner surface of the C-shaped flanged plate 101 is an inclined surface.

[0030] Specifically, the inclined surface forms an acute angle of 1.5° with the draft direction.

[0031] It should be noted that such a design facilitates demoulding.

[0032] Furthermore, the outer surface of the middle frame 202 is an inclined surface. Figure 3 It can be seen in.

[0033] Specifically, the inclined surface forms an acute angle of 1.5° with the draft direction.

[0034] It should be noted that such a design facilitates demoulding.

[0035] The structure of the hole cover 300 made by the utility model is as follows Figure 4 As shown, the hole cover frame 400 is as shown in FIG. Figure 5 shown.

[0036] The above embodiments are only intended to help understand the method and core concept of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A composite material manhole cover forming mold, characterized in that: It comprises a hole cover mould (100) and a hole cover frame mould (200); The hole cover mold (100) comprises two symmetrical C-shaped flanged flat plates (101), which are butt-jointed and arranged on a bottom flat plate (102); The hole cover frame mould (200) comprises an upper cover frame (201), a middle frame (202) and a lower cover frame (203); the frame openings in the middle parts of the upper cover frame (201), the middle frame (202) and the lower cover frame (203) are of the same size; the upper cover frame (201) and the lower cover frame (203) are respectively mounted on the upper and lower end surfaces of the middle frame (202).

2. A composite material manhole cover forming mold according to claim 1, characterized in that: The C-shaped flanged flat plate (101) is provided with a plurality of reinforcing rib plates (103).

3. A composite material manhole cover forming mold according to claim 2, characterized in that: The inner surface of the C-shaped flanged flat plate (101) is an inclined surface.

4. A composite material manhole cover forming mold according to any one of claims 1 to 3, characterized in that: The outer profile surface of the middle frame (202) is an inclined surface.

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