Spreading structure for reinforcing SMC (Sheet Molding Compound)

Abstract

The utility model relates to a material spreading structure for reinforcing SMC (Sheet Molding Compound). The problem that in the prior art, when material supplementation is conducted on an SMC workpiece, the overall performance is difficult to improve is solved. The composite material comprises a base layer paving material, a top layer paving material is arranged on the base layer paving material, a connecting structure is arranged between the base layer paving material and the top layer paving material, a short fiber reinforcing mechanism is arranged in the base layer paving material, a woven fiber mechanism is arranged in the top layer paving material, and a frame wrapping assembly is arranged between the base layer paving material and the top layer paving material in the circumferential direction. Compared with the prior art, the SMC material has the advantages that the weight increase is reduced while the SMC material is reinforced, meanwhile, the overall mechanical strength, rigidity and flame retardance of the SMC material can be effectively reinforced, the overall performance of the SMC material is improved, the compression molding formability is improved, and the warping problem of the reinforced part after forming is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of SMC materials, in particular to a paving structure for reinforcing SMC. Background Art

[0002] With the gradual maturity of its materials and processes, SMC, as a new molding material, has the advantages of good reproducibility, no influence from the operator and the environment, convenient and easy to operate, good fluidity, can be formed into special-shaped products, good quality uniformity, and is suitable for pressing large thin-walled products with little cross-sectional change; its products are widely used in vehicles, construction, electrical and electronic industries, such as bumpers, fenders, deflectors, masks, etc. used in automobiles, insulating plugs, insulating bolts, etc. used in the electrical and electronic industries are widely used SMC sheets as raw materials. However, with the increasingly high requirements of modern manufacturing on the performance of materials, the performance strength and insulation effect of SMC sheets are not good; in addition, the existing. For large-sized SMC parts, it is inevitable that there are different flow states in different parts. The traditional solution usually adopts local increase in material usage, such as thickening, structural strengthening, and adding other parts. However, this method inevitably increases the weight of SMC parts, and its performance has not been significantly improved, and the use effect is not good.

[0003] In order to solve the shortcomings of the existing technology, people have conducted long-term exploration and proposed various solutions. For example, a Chinese patent document discloses an SMC sheet [CN200910026894.0], which includes a middle core material impregnated with resin slurry and a PE film covering the upper and lower sides of the middle core material, and the middle core material is composed of alkali-free cloth and long glass fibers.

[0004] The above solution solves the problem of insufficient strength and poor insulation of SMC materials in the prior art to a certain extent, but the solution still has many shortcomings. For example, for SMC parts with larger sizes, different flow states are inevitable in different parts. It is difficult for traditional solutions to improve the performance of SMC materials and the use effect is not good. Summary of the invention

[0005] The utility model aims to provide a paving structure for reinforcing SMC in view of the above problems.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a reinforced SMC paving structure, including a base paving, a top paving is arranged on the base paving, a connecting structure is arranged between the base paving and the top paving, a short fiber reinforcement mechanism is arranged in the base paving, a woven fiber mechanism is arranged in the top paving, and a frame wrapping component is arranged between the base paving and the top paving in the circumferential direction.

[0007] In the above-mentioned reinforced SMC paving structure, the base paving material and the top paving material have the same thickness, and the connecting structure runs through the base paving material and the top paving material to form a plug-in fit.

[0008] In the above-mentioned reinforced SMC paving structure, the short fiber reinforcement mechanism includes a short fiber SMC arranged in the circumferential direction of the base paving, and the inner core of the base paving is provided with a reinforced structural layer.

[0009] In the above-mentioned reinforced SMC paving structure, the reinforced structural layer includes a plurality of reinforced paving materials arranged in the base paving material, and two adjacent reinforced paving materials are connected by a supporting connecting strip.

[0010] In the above-mentioned reinforced SMC paving structure, the reinforced paving is composed of a plurality of reinforcing sheets arranged in blocks, and a flexible filling gap is provided between each reinforcing sheet, and a flame retardant material is provided in the flexible filling gap.

[0011] In the above-mentioned reinforced SMC paving structure, both sides of the reinforced paving are formed by crimping the rigid frames, and the above-mentioned supporting connecting strips are connected between two adjacent rigid frames.

[0012] In the above-mentioned reinforced SMC paving structure, the woven fiber structure includes woven fibers arranged at both ends of the top paving material, the woven fibers are equidistantly arranged on the inner wall of the top paving material, and short fibers are filled in the gap between two adjacent woven fibers.

[0013] In the above-mentioned reinforced SMC paving structure, the frame wrapping component includes a crimped outer layer provided on the outer wall of the base paving and the top paving, and the base paving and the top paving are circumferentially provided with a shaped outer shell connected to the crimped outer layer.

[0014] In the above-mentioned reinforced SMC paving structure, the connection structure includes a connection surface, and a plurality of plug-in protrusions arranged in staggered protrusions are respectively provided at the upper and lower ends of the connection surface, and slots for connecting the plug-in protrusions are provided on the base paving material and the top paving material.

[0015] In the above-mentioned reinforced SMC paving structure, the connecting surface is circumferentially connected to the shaped outer shell.

[0016] Compared with the existing technology, the advantages of the utility model are: while reinforcing the SMC material, the weight increase is reduced, and at the same time, the overall mechanical strength, rigidity and flame retardancy of the SMC material can be effectively reinforced, so that the overall performance of the SMC material is improved; secondly, it is conducive to improving the moldability, reducing the warping problem of the reinforced part after molding, and ensuring the quality of the reinforced SMC material. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a side sectional view of the utility model;

[0018] Figure 2 It is a front cross-sectional view of the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the enhanced structural layer in the utility model;

[0020] Figure 4 It is a schematic diagram of the connection structure arrangement in the utility model;

[0021] In the figure: base paving material 1, top paving material 2, connection structure 3, connection surface 31, plug-in protrusion 32, short fiber reinforcement mechanism 4, short fiber SMC41, reinforced structural layer 42, reinforced paving material 421, supporting connecting strip 422, reinforcement sheet 423, flexible filling gap 424, rigid frame 425, woven fiber mechanism 5, woven fiber 51, frame wrapping component 6, crimped outer layer 61, and molded outer shell 62. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] like Figure 1-4 As shown, a reinforced SMC paving structure includes a base paving material 1, a top paving material 2 is arranged on the base paving material 1, a connecting structure 3 is arranged between the base paving material 1 and the top paving material 2, a short fiber reinforcement mechanism 4 is arranged in the base paving material 1, a woven fiber mechanism 5 is arranged in the top paving material 2, and a frame wrapping component 6 is arranged between the base paving material 1 and the top paving material 2 in the circumferential direction.

[0024] The base paving material 1 and the top paving material 2 have the same thickness, and the connection structure 3 runs through the base paving material 1 and the top paving material 2 to form a plug-in fit.

[0025] This connection method enables the base paving material 1 and the top paving material 2 to be tightly connected.

[0026] Furthermore, the short fiber reinforcement mechanism 4 comprises a short fiber SMC 41 arranged in the circumferential direction of the base pavement 1 , and a reinforced structural layer 42 is arranged in the inner core of the base pavement 1 .

[0027] Specifically, the reinforced structural layer 42 includes a plurality of reinforced paving materials 421 arranged in the base paving material 1 , and two adjacent reinforced paving materials 421 are connected via a supporting connection strip 422 .

[0028] The provision of the reinforced structural layer 42 can effectively improve the structural strength and rigidity of the base paving material 1 .

[0029] It can be seen that the reinforced paving material 421 is composed of a plurality of reinforcing sheets 423 arranged in a block shape, and a flexible filling gap 424 is provided between each reinforcing sheet 423 , and a flame retardant material is provided in the flexible filling gap 424 .

[0030] The flame retardant property of the base paving material 1 is improved by arranging the flame retardant material.

[0031] Furthermore, the two sides of the reinforced paving material 421 are crimped into shape by the rigid frames 425 , and the above-mentioned supporting connecting strips 422 are connected between two adjacent rigid frames 425 .

[0032] The rigid frame 425 is used to shape the reinforced paving material 421 to prevent extrusion and dislocation.

[0033] More specifically, the woven fiber mechanism 5 includes woven fibers 51 arranged at both ends of the top layer paving material 2. The woven fibers 51 are equidistantly arranged on the inner wall of the top layer paving material 2, and short fibers are filled in the gap between two adjacent woven fibers 51.

[0034] By arranging the braided fibers 51 at both ends of the top paving material 2 and extending them toward the inner wall, the structural toughness is improved.

[0035] In detail, the frame wrapping assembly 6 includes a crimped outer layer 61 provided on the outer walls of the base pavement 1 and the top pavement 2 , and the base pavement 1 and the top pavement 2 are circumferentially provided with a shaped outer shell 62 connected to the crimped outer layer 61 .

[0036] This setting can prevent edge warping and ensure the aesthetics of the material.

[0037] Preferably, the connection structure 3 includes a connection surface 31 , and a plurality of plug-in protrusions 32 arranged in staggered protrusions are respectively provided at the upper and lower ends of the connection surface 31 , and slots for connecting the plug-in protrusions 32 are provided on the base paving material 1 and the top paving material 2 .

[0038] In addition, the connecting surface 31 is connected to the molded outer shell 62 in the circumferential direction.

[0039] To sum up, the principle of this embodiment is: by arranging short fiber SMC41 and reinforced structural layer 42 in the base paving material 1, the structural strength and flame retardant performance are improved; secondly, the connecting structure 3 is used to connect the base paving material 1 and the top paving material 2 in a plug-in manner, and the connection stability is better; and a woven fiber mechanism 5 is arranged in the top paving material 2 and connected to the frame wrapping component 6, so as to improve the structural strength and reduce warping, and the use effect is good.

[0040] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0041] Although this article uses more terms such as base paving material 1, top paving material 2, connection structure 3, connection surface 31, plug-in protrusion 32, short fiber reinforcement mechanism 4, short fiber SMC 41, reinforced structural layer 42, reinforced paving material 421, supporting connection strip 422, reinforcement sheet 423, flexible filling gap 424, rigid frame 425, woven fiber mechanism 5, woven fiber 51, frame wrapping component 6, crimped outer layer 61, and molded outer shell 62, it does not exclude the possibility of using other terms. The use of these terms is only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A reinforced SMC paving structure, comprising a base paving (1), a top paving (2) being arranged on the base paving (1), a connecting structure (3) being arranged between the base paving (1) and the top paving (2), a short fiber reinforcement mechanism (4) being arranged in the base paving (1), a woven fiber mechanism (5) being arranged in the top paving (2), and a frame wrapping component (6) being arranged between the base paving (1) and the top paving (2) in the circumferential direction.

2. A reinforced SMC paving structure according to claim 1, characterized in that: The base paving material (1) and the top paving material (2) have the same thickness, and the connection structure (3) runs through the base paving material (1) and the top paving material (2) to form a plug-in fit.

3. A reinforced SMC paving structure according to claim 1, characterized in that: The short fiber reinforcement mechanism (4) comprises a short fiber SMC (41) arranged in the circumferential direction of the base pavement (1), and the inner core of the base pavement (1) is provided with a reinforced structural layer (42).

4. A reinforced SMC paving structure according to claim 3, characterized in that: The reinforced structural layer (42) comprises a plurality of reinforced paving materials (421) arranged in the base paving material (1), and two adjacent reinforced paving materials (421) are connected via a supporting connection strip (422).

5. A reinforced SMC paving structure according to claim 4, characterized in that: The reinforced paving material (421) is composed of a plurality of reinforcing sheets (423) arranged in a block shape, and a flexible filling gap (424) is provided between each reinforcing sheet (423), and a flame retardant material is provided in the flexible filling gap (424).

6. A reinforced SMC paving structure according to claim 5, characterized in that: The two sides of the reinforced paving material (421) are formed by crimping together the rigid frames (425), and the supporting connecting strip (422) is connected between two adjacent rigid frames (425).

7. A reinforced SMC paving structure according to claim 1, characterized in that: The woven fiber mechanism (5) comprises woven fibers (51) arranged at both ends of the top layer of paving material (2); the woven fibers (51) are arranged at equal intervals on the inner wall of the top layer of paving material (2), and short fibers are filled in the gap between two adjacent woven fibers (51).

8. A reinforced SMC paving structure according to claim 2, characterized in that: The frame wrapping assembly (6) comprises a crimped outer layer (61) provided on the outer walls of the base pavement (1) and the top pavement (2); the base pavement (1) and the top pavement (2) are circumferentially provided with a shaped outer shell (62) connected to the crimped outer layer (61).

9. A reinforced SMC paving structure according to claim 8, characterized in that: The connection structure (3) comprises a connection surface (31), and a plurality of plug-in protrusions (32) arranged in a staggered manner are respectively provided at the upper and lower ends of the connection surface (31), and slots for connecting the plug-in protrusions (32) are provided on the base paving material (1) and the top paving material (2).

10. A reinforced SMC paving structure according to claim 9, characterized in that: The connecting surface (31) is circumferentially connected to the molded outer shell (62).

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