Carbon fiber rim forming die

Abstract

The utility model belongs to the technical field of carbon fiber wheel rim dies, and particularly relates to a carbon fiber wheel rim forming die which comprises an upper die and a lower die, a middle die is further arranged between the upper die and the lower die, and during die assembly, the upper die, the lower die and the middle die define an annular die cavity for wheel rim forming. A prefabricated and formed carbon fiber rim blank is placed in the annular mold cavity, and the middle mold is in an annular shape. According to the carbon fiber wheel rim forming die, through accurate die positioning, the size precision of wheel rim forming and the product quality are remarkably improved; secondly, the die assembly process is simplified, the production efficiency is improved, and the production cycle is shortened; in addition, due to the design that the stability of the mold is enhanced and demolding is convenient, the operation difficulty and the safety risk in production are reduced; and meanwhile, the product quality is enhanced by adopting the combined forming operation of the upper die ring, the middle die ring and the lower die ring, the service life of the die is prolonged, and the adaptability of the die is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to carbon fiber wheel rim mould technical field especially relates to a carbon fiber wheel rim forming die. BACKGROUND

[0002] In the production process of carbon fiber wheel rim, the traditional forming technology faces a series of technical problems. First of all, due to the strong adhesion between carbon fiber composite material and mould, the demoulding process is difficult, which not only increases the labor intensity of the operator, but also easily causes damage to the surface of the product, affecting the product quality. Secondly, the assembly of the mould is complex, and the positioning is not accurate, which often leads to the size deviation of the formed wheel rim, affecting its assembly and use performance. In addition, the stability of the mould is insufficient, and deformation is easy to occur in the high-temperature curing process, further affecting the precision of the product. Therefore, a carbon fiber wheel rim forming die is needed. SUMMARY

[0003] Based on the existing technical problems, the utility model provides a carbon fiber wheel rim forming die.

[0004] The carbon fiber wheel rim forming die provided by the utility model comprises an upper die and a lower die, a middle die is further arranged between the upper die and the lower die, when the die is closed, the upper die, the lower die and the middle die enclose an annular die cavity for wheel rim forming, a prefabricated carbon fiber wheel embryo is placed inside the annular die cavity, and the middle die has a ring shape.

[0005] Preferably, the bottom of the upper die is respectively provided with a middle die clamping groove, an upper die forming die cavity and a plurality of clamping positioning holes, the middle die is placed in the middle die clamping groove, and the inner wall of the upper die forming die cavity is matched with the outer shape size of the carbon fiber wheel rim.

[0006] Preferably, the top of the lower die is respectively provided with a lower die forming die cavity and a locking threaded hole, the inner wall of the lower die forming die cavity is arranged in a vertical direction corresponding to the inner wall of the upper die forming die cavity, the inner wall size of the lower die forming die cavity is matched with the outer shape size of the carbon fiber wheel rim, and when the upper die and the lower die are installed, the clamping positioning holes are screwed and locked with the locking threaded hole.

[0007] Preferably, the outer arc surface of the middle die is fixedly provided with a plurality of supporting plate ears, and the supporting plate ears are arranged in a ring array on the outer arc surface of the middle die.

[0008] Preferably, the top surface of the middle die is further provided with a plurality of locking through holes, and the locking through holes are movably sleeved and limited by the screws during the installation of the upper die and the lower die.

[0009] Preferably, the middle die is composed of an upper die ring, a middle die ring and a lower die ring, the outer arc surface of the upper die ring is tapered, the tapered surface of the upper die ring is slidably inserted into the tapered inner wall of the middle die clamping groove, the inner wall of the upper die ring, the inner wall of the middle die ring and the inner wall of the lower die ring are all provided with a side forming die cavity, and the middle die ring is composed of four half-arc shapes connected end to end.

[0010] Preferably, the bottom side of the upper die is further provided with a positioning groove, a positioning block is slidably inserted into the inner wall of the positioning groove, the bottom of the positioning block is in contact with the one end protruding block of the middle die, and the one end surface of the positioning block and the one end surface of the middle die are both provided with an air inlet hole.

[0011] The beneficial effects in the utility model are:

[0012] Through accurate die positioning, the size accuracy and product quality of the wheel rim forming are significantly improved; secondly, the die assembly process is simplified, the production efficiency is improved, and the production cycle is shortened; in addition, the stability of the die is enhanced and the design of facilitating demolding reduces the operation difficulty and the safety risk in production; at the same time, the combination type forming operation of the upper die ring, the middle die ring and the lower die ring enhances the product quality, prolongs the service life of the die, and enhances the adaptability of the die. In summary, this die design brings high efficiency, accuracy, safety and economic effect to the production of carbon fiber wheel rims. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic view of a carbon fiber wheel rim forming die;

[0014] Figure 2 It is a three-dimensional view of the upper die structure of a carbon fiber wheel rim forming die;

[0015] Figure 3 It is a three-dimensional view of the lower die structure of a carbon fiber wheel rim forming die;

[0016] Figure 4 It is a three-dimensional view of the middle die structure of a carbon fiber wheel rim forming die;

[0017] Figure 5 It is a three-dimensional view of the annular die cavity structure of a carbon fiber wheel rim forming die;

[0018] Figure 6 It is a three-dimensional exploded view of the middle die structure of a carbon fiber wheel rim forming die.

[0019] In the figure: 1, upper die; 11, middle die clamping groove; 12, upper die forming cavity; 13, clamping positioning hole; 2, lower die; 21, lower die forming cavity; 22, locking screw hole; 3, middle die; 31, locking via; 32, upper die ring; 33, middle die ring; 34, lower die ring; 35, side forming cavity; 4, annular cavity; 5, support plate ear; 6, positioning groove; 7, positioning block; 8, air inlet hole. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0021] Reference Figures 1-6 A carbon fiber rim forming die comprises an upper die 1 and a lower die 2, and a middle die 3 is further arranged between the upper die 1 and the lower die 2. When the die is closed, the upper die 1, the lower die 2 and the middle die 3 enclose an annular cavity 4 for forming a rim, a prefabricated carbon fiber rim embryo is placed inside the annular cavity 4, and the middle die 3 has a ring shape.

[0022] The bottom of the upper die 1 is respectively provided with a middle die clamping groove 11, an upper die forming cavity 12 and a plurality of clamping positioning holes 13. The middle die 3 is placed inside the middle die clamping groove 11, and the inner wall of the upper die forming cavity 12 is adapted to the outer shape of the carbon fiber rim.

[0023] In this way, the clamping positioning holes 13 ensure the accurate alignment between the upper die 1, the middle die 3 and the lower die 2, reduce the error during die assembly, and improve the precision of rim forming. The inner wall of the upper die forming cavity 12 is adapted to the outer shape of the carbon fiber rim, ensuring the consistency of each rim forming and reducing product differences. The design of the middle die clamping groove 11 helps to fix the middle die 3 and prevent the movement of the middle die 3 during forming, thereby improving the stability of the entire die system.

[0024] The top of the lower die 2 is respectively provided with a lower die forming cavity 21 and a locking screw hole 22. The inner wall of the lower die forming cavity 21 is arranged in a vertical direction corresponding to the inner wall of the upper die forming cavity 12. The inner wall size of the lower die forming cavity 21 is adapted to the outer shape of the carbon fiber rim. When the upper die 1 and the lower die 2 are installed, the clamping positioning holes 13 are screwed and locked with the locking screw hole 22.

[0025] Specifically, the vertical correspondence of the lower mold forming cavity 21 and the upper mold forming cavity 12 ensures the perpendicularity and concentricity of the rim, improving the forming precision; the inner wall size of the upper mold 1 and the lower mold 2 is matched with the outer shape size of the rim, which helps to achieve uniform pressure distribution during the forming process, reduces deformation and defects; the clamping positioning hole 13 and the locking screw hole 22 are used for screw locking installation, which simplifies the assembly process of the mold and improves the assembly efficiency.

[0026] The outer circular arc surface of the middle mold 3 is fixedly installed with a plurality of supporting ears 5, and the supporting ears 5 are arranged in a ring array on the outer circular arc surface of the middle mold 3.

[0027] Specifically, the supporting ears 5 help to maintain the shape and position stability of the middle mold 3, ensuring that the mold will not displace in the high-temperature and high-pressure forming environment; the supporting ears 5 can prevent the carbon fiber from displacing during the forming process, ensuring that the fiber is solidified according to the predetermined direction and arrangement, and improving the performance of the rim; the supporting ears 5 can be used as auxiliary points for demolding, helping to easily separate the mold and the formed rim during demolding.

[0028] The top surface of the middle mold 3 is also provided with a plurality of locking through holes 31, and the locking through holes 31 are limited by the screw movable sleeve during the installation of the upper mold 1 and the lower mold 2.

[0029] Specifically, the cooperation of the locking through hole 31 and the screw can accurately control the relative position between the upper mold 1, the middle mold 3 and the lower mold 2, ensure the alignment accuracy of the mold, and thus improve the forming precision of the product; the limiting action of the locking through hole 31 and the screw can prevent the mold from being accidentally opened during the high-pressure forming process, improving the safety of the production process.

[0030] The middle mold 3 is composed of an upper mold ring 32, a middle mold ring 33 and a lower mold ring 34, the outer circular arc surface of the upper mold ring 32 is tapered, the tapered surface of the upper mold ring 32 is slidably inserted into the tapered inner wall of the middle mold clamping groove 11, the inner wall of the upper mold ring 32, the inner wall of the middle mold ring 33 and the inner wall of the lower mold ring 34 are all provided with a side forming cavity 35, and the middle mold ring 33 is composed of four half-arc shapes connected end to end.

[0031] Specifically, the taper design makes the middle mold 3 easily inserted into the middle mold clamping groove 11 of the upper mold 1, and can be automatically centered, improving the installation efficiency and positioning accuracy; the taper cooperation has a certain self-locking effect, which can keep the position of the middle mold 3 without additional fixation, preventing it from moving during the forming process; and the middle mold 3 is composed of the upper mold ring 32, the middle mold ring 33 and the lower mold ring 34, which can be demolded by disassembling the stack after forming, and the four spliced middle mold rings are taken out first, then the upper mold ring and the lower mold ring are disassembled in turn, and the overall setting of the upper mold ring and the lower mold ring ensures the forming precision.

[0032] The bottom side of the upper die 1 is further provided with a positioning groove 6, and a positioning block 7 is slidably inserted into the inner wall of the positioning groove 6, and the bottom of the positioning block 7 is in contact with an end protrusion of the middle die 3, and the end surface of the positioning block 7 and the end surface of the middle die 3 are both provided with an air inlet hole 8.

[0033] Specifically, the design of the positioning groove 6 and the positioning block 7 ensures the clamping and positioning effect of the tire air pipe, and the air inlet hole 8 facilitates the tire air pipe to pass out without interference.

[0034] Through accurate mold positioning, the size accuracy and product quality of the rim forming are significantly improved; secondly, the mold assembly process is simplified, the production efficiency is improved, and the production cycle is shortened; in addition, the stability of the mold is enhanced and the design of easy demolding reduces the operation difficulty and the safety risk in production; at the same time, the combination type forming operation of the upper die ring, the middle die ring and the lower die ring enhances the product quality, prolongs the service life of the mold, and enhances the adaptability of the mold. In summary, this mold design brings efficient, accurate, safe and economic effects to the production of carbon fiber rims.

[0035] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A carbon fiber wheel rim forming mold characterized by: The application relates to a carbon fiber wheel forming device, which comprises an upper die (1) and a lower die (2), and a middle die (3) is arranged between the upper die (1) and the lower die (2); when the upper die (1), the lower die (2) and the middle die (3) are combined, an annular die cavity (4) for wheel rim forming is formed, a prefabricated carbon fiber wheel embryo is arranged in the annular die cavity (4), and the middle die (3) is in an annular shape.

2. A carbon fiber wheel rim forming mold according to claim 1, characterized in that: A middle die clamping groove (11), an upper die forming die cavity (12) and a plurality of clamping positioning holes (13) are formed in the bottom of the upper die (1), the middle die (3) is arranged in the middle die clamping groove (11), and the inner wall of the upper die forming die cavity (12) is matched with the outer shape of the carbon fiber wheel.

3. A carbon fibre wheel rim forming mould according to claim 2, characterised in that: A lower die forming die cavity (21) and a locking threaded hole (22) are formed in the top of the lower die (2), the inner wall of the lower die forming die cavity (21) is arranged in a vertical direction corresponding to the inner wall of the upper die forming die cavity (12), the inner wall of the lower die forming die cavity (21) is matched with the outer shape of the carbon fiber wheel, and the upper die (1) and the lower die (2) are screwed and locked through the clamping positioning holes (13) and the locking threaded holes (22) when the upper die (1) and the lower die (2) are installed.

4. The carbon fiber wheel forming mold of claim 1, wherein: A plurality of supporting plate ears (5) are arranged in an annular array on the outer arc surface of the middle die (3).

5. The carbon fiber wheel forming mold of claim 1, wherein: Locking through holes (31) are formed in the top surface of the middle die (3), and the locking through holes (31) are movably sleeved with screws when the upper die (1) and the lower die (2) are installed.

6. A carbon fiber wheel rim forming mold according to claim 2, characterized in that: The middle die (3) is composed of an upper die ring (32), a middle die ring (33) and a lower die ring (34), the outer arc surface of the upper die ring (32) is arranged in a taper shape, the taper surface of the upper die ring (32) is slidably inserted into the taper inner wall of the middle die clamping groove (11), side forming die cavities (35) are formed in the inner walls of the upper die ring (32), the middle die ring (33) and the lower die ring (34), and the middle die ring (33) is composed of four half-arc-shaped parts connected in a head-to-tail mode.

7. The carbon fiber wheel forming mold of claim 1, wherein: A positioning groove (6) is formed in one side of the bottom of the upper die (1), a positioning block (7) is slidably inserted into the inner wall of the positioning groove (6), the bottom of the positioning block (7) is in contact with one end of a protruding block of the middle die (3), and one end surface of the positioning block (7) and one end surface of the middle die (3) are both provided with air inlet holes (8).

Images