Integrated forming die for carbon fiber electromagnetic shielding drawer box
By designing an integrated molding mold for carbon fiber electromagnetic shielded drawer boxes, the problems of lightweighting and cost in traditional metal structures were solved, realizing the molding of all-carbon fiber drawer boxes, which are suitable for industrial production and reduce the difficulty of operation and manufacturing costs.
Patent Information
- Application Number
- CN202423197902.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-24
AI Technical Summary
Traditional electromagnetic shielded drawer boxes mainly use metal structures or metal and carbon fiber combination structures, which have disadvantages in terms of lightweighting and manufacturing costs, and cannot fully utilize the advantages of the all-carbon fiber structure.
A one-piece molding die for a carbon fiber electromagnetic shielded drawer box was designed, including a lower die, a front die, a left die, a right die, and a rear die. The die is fixedly connected by corner blocks and side edges, and combined with positioning pins and a transition ramp structure, to achieve the molding of a full carbon fiber drawer box.
The design achieves lightweighting, cost reduction, and efficiency improvement in the all-carbon fiber electromagnetic shielded drawer box. It is suitable for continuous operation in industrial production, easy to operate, reduces the labor intensity of operators, and has a simple and compact mold structure, making installation and maintenance convenient.
Smart Images
Figure CN223573886U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to carbon fiber electromagnetic shielding drawer box forming die technical field, especially in kind of carbon fiber electromagnetic shielding drawer box integrated forming die. BACKGROUND
[0002] Carbon fiber composite material is a kind of high-performance new material, compared with traditional metal material, has the advantage of high specific strength, specific stiffness, can be designed according to the need of product and the characteristic of stress, and the structure of various curvatures and shapes is overlaid, then the performance of material is fully played, has been widely used in various primary and secondary load-bearing structural members.
[0003] As Figure 1 Indicated, the traditional electromagnetic shielding drawer box mainly by bottom plate 10, front plate 20, left plate 30, right plate 40 and rear plate 50 are formed, and mostly adopt metal structure or metal and carbon fiber combined structure, compared with all carbon fiber structure, product lightweight or manufacturing cost exists certain disadvantage. UTILITY MODEL CONTENT
[0004] The utility model discloses a kind of carbon fiber electromagnetic shielding drawer box integrated forming die, to form all carbon fiber electromagnetic shielding drawer box, to improve the demand of product lightweight and cost reduction and efficiency improvement.
[0005] To solve the above technical problems, the utility model provides a kind of carbon fiber electromagnetic shielding drawer box integrated forming die, including lower mould, front mould, left mould, right mould and rear mould;
[0006] The front mould, the left mould, the right mould and the rear mould are connected head-tail in the lower mould and form forming cavity, correspond to the bottom plate, front plate, left plate, right plate and rear plate of forming electromagnetic shielding drawer box;
[0007] The left mould and the rear mould are equipped with first angle partial block at the joint, the left mould and the rear mould are fixedly connected by the first angle partial block;
[0008] The right mould and the rear mould are equipped with second angle partial block at the joint, the right mould and the rear mould are fixedly connected by the second angle partial block;
[0009] The left mould and the front mould are vertically extended left side edge at the joint, and the left side edge and the front mould are fixedly connected;
[0010] The right mould and the front mould are vertically extended right side edge at the joint, and the right side edge and the front mould are fixedly connected.
[0011] Preferably, a plurality of mounting holes are formed on the left die, the right die and the back die, and the left die, the right die and the back die are fixedly installed on the lower die through fixing bolts.
[0012] Preferably, a lower die groove is formed in the lower die for laying pre-preg of a bottom plate, and a die groove is formed in an inner wall of each of the front die, the left die, the right die and the back die for laying pre-preg of a front plate, a left plate, a right plate and a back plate respectively.
[0013] Preferably, a plurality of lower die positioning pins are arranged on the lower die, and the front die is positioned and inserted with the lower die through the lower die positioning pins.
[0014] Preferably, a plurality of waist-shaped mounting holes are formed in the front die corresponding to the lower die positioning pins, and the front die is moved along the waist-shaped mounting holes towards the back die after being inserted with the lower die positioning pins.
[0015] Preferably, mounting holes are further formed on both sides of the front die, and the front die is fixedly connected with a left side edge of the left die and a right side edge of the right die through fixing bolts.
[0016] Preferably, transition slopes are arranged on both sides of the front die on the lower die.
[0017] Compared with the prior art, the integrated molding die has the following beneficial effects:
[0018] The integrated molding die meets the molding requirement of the carbon fiber electromagnetic shielding drawer box structure, is suitable for continuous operation without interruption in industrial production, guarantees pressure transmission of both ends and bottom extension positions of a front plate of a product through the lower die positioning pins and the waist-shaped mounting holes of the front die, and has the transition slope structure arranged in a part of the lower die for facilitating arrangement of sealing cement. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 is a structure schematic view of a carbon fiber electromagnetic shielding drawer box formed by the integrated molding die of the utility model;
[0020] Figure 2 is a structure schematic view of a carbon fiber electromagnetic shielding drawer box integrated molding die provided by the utility model;
[0021] Figure 3 is a molding schematic view of a carbon fiber electromagnetic shielding drawer box in a molding die provided by the utility model;
[0022] Figure 4 is a partial sectional view of the carbon fiber electromagnetic shielding drawer box integrated forming die provided by the utility model.
[0023] In the figure: 1, lower mould; 2, front mould; 3, left mould; 4, right mould; 5, rear mould; 6, first corner partial block; 7, second corner partial block; 8, lower mould positioning pin; 10, bottom plate; 20, front plate; 30, left plate; 40, right plate; 50, rear plate; 11, lower mould groove; 12, transition slope; 21, waist type mounting hole; 31, left side edge; 41, right side edge. DETAILED DESCRIPTION
[0024] The utility model makes further detailed description in combination with the drawings and specific embodiments. The advantages and features of the utility model will be more apparent according to the following description and claims. It should be noted that the drawings all adopt very simplified form and all use non-precise proportion, only to facilitate, clearly assist the purpose of description of the utility model embodiment.
[0025] In the description of the utility model, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.
[0026] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.
[0027] Example one
[0028] The utility model provides a kind of carbon fiber electromagnetic shielding drawer box integrated forming die, please refer to Figure 2 AndFigure 3 , including lower die 1, front die 2, left die 3, right die 4 and rear die 5;The front die 2, the left die 3, the right die 4 and the rear die 5 are connected head to tail in the lower die 1 to form a forming cavity, corresponding to the bottom plate 10, the front plate 20, the left plate 30, the right plate 40 and the rear plate 50 of the electromagnetic shielding drawer box.
[0029] Wherein, the left die 3 and the rear die 5 are provided with first corner block 6 at the joint, the left die 3 and the rear die 5 are fixedly connected through the first corner block 6;The right die 4 and the rear die 5 are provided with second corner block 7 at the joint, the right die 4 and the rear die 5 are fixedly connected through the second corner block 7.
[0030] Further, the left die 3 and the front die 2 are vertically extended left side edge 31 at the joint, and the left die 3 and the front die 2 are fixedly connected through the left side edge 31;The right die 4 and the front die 2 are vertically extended right side edge 41 at the joint, and the right die 4 and the front die 2 are fixedly connected through the right side edge 41.
[0031] In the embodiment, a plurality of mounting holes are formed in the left die 3, the right die 4 and the rear die 5, and the left die 3, the right die 4 and the rear die 5 are fixedly installed on the lower die 1 through fixing bolts.
[0032] Further, the lower die 1 is provided with a lower die groove 11 for laying the pre-impregnated material of the bottom plate 10;The inner side walls of the front die 2, the left die 3, the right die 4 and the rear die 5 are respectively provided with die grooves for laying the pre-impregnated material of the front plate 20, the left plate 30, the right plate 40 and the rear plate 50.
[0033] Please refer to Figure 4 Further, a plurality of lower die positioning pins 8 are arranged on the lower die 1, and the front die 2 is positioned and inserted with the lower die 1 through the plurality of lower die positioning pins 8;The front die 2 is provided with a plurality of waist-shaped mounting holes 21 corresponding to the plurality of lower die positioning pins 8, and after the front die 2 is inserted with the lower die positioning pins 8, it moves along the waist-shaped mounting holes 21 towards the rear die 5.
[0034] In the embodiment, transition slopes 12 are arranged on both sides of the front die 2 on the lower die 1 to facilitate the arrangement of sealing cement.
[0035] The forming method of the carbon fiber electromagnetic shielding drawer box integrated forming die adopts the carbon fiber electromagnetic shielding drawer box integrated forming die.
[0036] Step A: the surface of the mold is smeared with release agent, and preheated at 50 DEG C for 30 min;
[0037] Step B: the left die 3, the right die 4, the back die 5, the first corner partial block 6 and the second corner partial block 7 are combined to form a whole on the lower die 1 by bolting;
[0038] Step C: according to the layer design, 1 / 2 wall thickness (about 0.75mm) thickness prepreg is laid in the mold;
[0039] Step D: according to the layer design, partial thickness (about 3.25mm) prepreg is laid in the front die 2;
[0040] Step E: after laying, the front die 2 is placed in the mold combination structure, and is connected with the left die 3 and the right die 4 by bolting through the waist type mounting hole 21 and the lower die positioning pin 8;
[0041] Step F: according to the layer design, the remaining thickness (about 0.75mm) prepreg is laid in the whole;
[0042] Step G: after laying, the mold edge overflow material is removed;
[0043] Step H: the sealant strip is laid along the edge of the lower die 1, and the whole is sealed by a vacuum bag;
[0044] Step I: the hot press tank is placed, and 145±5℃ / 0.6MPa heating and pressurizing is carried out for 3h for curing;
[0045] Step J: the temperature in the tank is reduced to 60℃, and the tank is opened;
[0046] Step K: the front die 2, the left die 3, the right die 4, the back die 5, the first corner partial block 6 and the second corner partial block 7 are sequentially removed, and the carbon fiber electromagnetic shielding drawer box product is taken out;
[0047] Step L: the flash of the product is polished, and the edge and hole are processed.
[0048] The integrally formed mold meets the forming requirement of the carbon fiber electromagnetic shielding drawer box structure, is suitable for continuous operation without interruption in industrial production, the lower die positioning pin and the front die waist type mounting hole are designed, the pressure transmission of the two ends and the bottom extension of the product front plate is ensured, the lower die is locally designed with a transition slope structure to facilitate the arrangement of sealing cement, the forming mold is convenient to disassemble and assemble, simple to operate, light and flexible to carry, the application of the forming mold has low requirement on the operation level of the operator, is simple to operate, greatly reduces the labor intensity of the operator, the overall structure of the forming mold is simple and compact, convenient to install and maintain, low in manufacturing cost and reliable in work.
[0049] The above description is only a description of the preferred embodiment of the utility model, and does not limit the scope of the utility model, any change and modification of the utility model made by the ordinary skilled in the art according to the above disclosure is within the protection scope of the claims.
Claims
1. A one-piece molding mold for a carbon fiber electromagnetic shielded drawer box, characterized in that, It includes the lower mold (1), the front mold (2), the left mold (3), the right mold (4), and the rear mold (5); The front mold (2), the left mold (3), the right mold (4) and the rear mold (5) are connected end to end in the lower mold (1) to form a molding cavity, which is used to form the bottom plate (10), front plate (20), left plate (30), right plate (40) and rear plate (50) of the electromagnetic shielded drawer box. The left mold (3) and the rear mold (5) are connected by a first corner block (6), which fixes the left mold (3) and the rear mold (5) together. The right mold (4) and the rear mold (5) are connected by a second corner block (7), and the right mold (4) and the rear mold (5) are fixedly connected by the second corner block (7); The left mold (3) extends vertically to the junction of the left mold (3) and the front mold (2), and is fixedly connected to the front mold (2) through the left mold (31); The right mold (4) extends vertically to the junction of the right mold (4) and the front mold (2), and is fixedly connected to the front mold (2) through the right mold (41).
2. The integral molding mold for a carbon fiber electromagnetic shielded drawer box as described in claim 1, characterized in that, The left mold (3), the right mold (4) and the rear mold (5) are each provided with multiple mounting holes. The left mold (3), the right mold (4) and the rear mold (5) are fixedly installed on the lower mold (1) by fixing bolts.
3. The integral molding mold for a carbon fiber electromagnetic shielded drawer box as described in claim 1, characterized in that, The lower mold (1) has a lower mold groove (11) for laying the prepreg of the base plate (10); the inner walls of the front mold (2), the left mold (3), the right mold (4) and the rear mold (5) are respectively provided with mold grooves for laying the prepreg of the front plate (20), the left plate (30), the right plate (40) and the rear plate (50).
4. The integral molding mold for a carbon fiber electromagnetic shielded drawer box as described in claim 1, characterized in that, The lower mold (1) is provided with a plurality of lower mold positioning pins (8), and the front mold (2) is positioned and inserted into the lower mold (1) through the plurality of lower mold positioning pins (8).
5. The integral molding mold for a carbon fiber electromagnetic shielded drawer box as described in claim 4, characterized in that, The front mold (2) has waist-shaped mounting holes (21) corresponding to the multiple lower mold positioning pins (8). When the front mold (2) is inserted into the lower mold positioning pins (8), it moves along the waist-shaped mounting holes (21) toward the rear mold (5).
6. The integral molding mold for a carbon fiber electromagnetic shielded drawer box as described in claim 5, characterized in that, The front mold (2) is also provided with mounting holes on both sides, and the front mold (2) is fixedly connected to the left side edge (31) of the left mold (3) and the right side edge (41) of the right mold (4) by fixing bolts.
7. The integral molding mold for a carbon fiber electromagnetic shielded drawer box as described in claim 1, characterized in that, Transition ramps (12) are provided on both sides of the front mold (2) on the lower mold (1).