Forming die for carbon fiber bicycle rim

Abstract

The utility model discloses a carbon fiber bicycle rim forming die, which belongs to the technical field of rim forming dies and comprises a rim forming die body, a cavity is arranged in the rim forming die body, the rim forming die body comprises an upper die and a lower die, the upper die is connected onto the lower die, the cavity is arranged between the upper die and the lower die, the upper die is provided with a threaded hole, and the threaded hole penetrates through the lower die. A plurality of threaded holes are formed in the upper die and are in threaded connection with threaded rods, a plurality of guide rods are fixedly connected to the lower die and are arranged on the lower die, guide holes are formed in the upper die, the guide rods are inserted into the guide holes, the threaded holes and the guide rods are arranged in a staggered mode, and each guide hole comprises a circular ring part, a guide part and a U-shaped part. The circular ring part is connected to the guide part, the guide part is connected to the U-shaped part, and the guide part is arranged between the circular ring part and the U-shaped part.

Description

TECHNICAL FIELD

[0001] The utility model relates to a wheel rim forming die technical field, concretely is a kind of forming die of carbon fiber bicycle wheel rim. BACKGROUND

[0002] Carbon fiber bicycle wheel rim is a kind of bicycle wheel group component made of carbon fiber composite material, with light weight, high strength and excellent aerodynamic performance etc.Characteristics.It is mainly formed by hot pressing carbon fiber composite material evenly laid on wheel rim forming die.

[0003] Now common wheel rim forming die mainly includes upper die and lower die, upper die is connected in lower die, and there is a cavity between lower die and upper die, the cavity is used to lay carbon fiber composite material, forming die is also provided with locking positioning structure, when carbon fiber composite material is laid in cavity and completed, upper die and lower die are locked by locking positioning structure, at this time, carbon fiber composite material in forming die is hot-pressed, and carbon fiber composite material is formed in forming die.

[0004] For the above technical conditions, wheel rim forming die is locked and positioned by a plurality of bolts and bolt holes, and in the locking and positioning process, the position of upper die or lower die needs to be adjusted to align the bolt hole, so that the locking and positioning process is time-consuming and inconvenient.

[0005] Based on this, the utility model discloses a kind of forming die of carbon fiber bicycle wheel rim to solve above-mentioned problem. UTILITY MODEL CONTENTS

[0006] The utility model is to provide a kind of forming die of carbon fiber bicycle wheel rim, to solve above-mentioned technical problem.

[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of forming die of carbon fiber bicycle wheel rim, including the main body of wheel rim forming die, the main body is provided with cavity, the main body includes upper die and lower die, the upper die is connected in the lower die, the cavity is between the upper die and the lower die, the upper die is provided with threaded hole, the threaded hole penetrates the lower die, the threaded hole is provided with a plurality of on the upper die, the threaded hole is screw-threaded with threaded rod, the lower die is fixedly connected with guide rod, the guide rod is provided with a plurality of on the lower die, the upper die is provided with guide hole, the guide rod is inserted in the guide hole, a plurality of threaded holes and a plurality of guide rods are staggered, the guide hole includes annular part, guide part and U-shaped part, the annular part is connected on the guide part, the guide part is connected on the U-shaped part, and the guide part is between the annular part and the U-shaped part.

[0008] Preferably, the guide portion is wide at one end and narrow at the other, with the wide end of the guide portion facing the annular portion.

[0009] Preferably, the diameter of the annular portion is larger than that of the U-shaped portion, and the diameter of the U-shaped portion is the same as that of the guide rod.

[0010] Preferably, the end of the guide rod facing the upper mold is chamfered.

[0011] Preferably, the lower mold has a positioning groove, and the upper mold has a positioning ring fixedly connected to it. The positioning ring is inserted into the positioning groove, and the positioning groove is V-shaped.

[0012] Preferably, a sealing layer is fixedly disposed in the positioning groove, and the sealing layer abuts against the positioning ring.

[0013] In summary, this application has the following beneficial technical effects: After the carbon fiber composite material is laid in the cavity, the upper mold is connected to the lower mold, so that the guide rod of the lower mold is inserted into the annular part of the guide hole, the upper mold abuts against the lower mold, and the positioning ring is inserted into the positioning groove. Then, the upper mold is rotated so that the guide rod moves through the guide part of the guide hole to the U-shaped part of the guide hole. At this time, the threaded holes of the upper mold and the lower mold are aligned, which makes it convenient to lock and position the upper mold and the lower mold through the threaded rod, thereby achieving the effect of conveniently locking and positioning the upper mold and the lower mold of the wheel rim forming mold. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Fig. 1 This is a schematic diagram of the molding die in this embodiment;

[0016] Fig. 2 This is a top view of the molding die in this embodiment;

[0017] Fig. 3 This is a schematic diagram of the installation structure of the molding die in this embodiment.

[0018] The attached diagram lists the components represented by each number as follows:

[0019] 1. Guide hole; 2. Guide rod; 3. Upper die; 4. Lower die; 5. Threaded rod; 6. Circular part; 7. Guide part; 8. U-shaped part; 9. Threaded hole; 10. Positioning ring; 11. Positioning groove; 12. Cavity. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] The following is in conjunction with the appendix Figs. 1-3 This application will be described in further detail.

[0022] A molding die for a carbon fiber bicycle rim includes a main body of the rim molding die, in which a cavity 12 is provided for laying carbon fiber composite material. The main body includes an upper mold 3 and a lower mold 4, with the upper mold 3 connected to the lower mold 4, and the cavity 12 located between the upper mold 3 and the lower mold 4.

[0023] The upper mold 3 has a threaded hole 9 that passes through the lower mold 4. There are multiple threaded holes 9 on the upper mold 3. The threaded hole 9 is threadedly connected to a threaded rod 5. The upper mold 3 can be locked and positioned on the lower mold 4 by passing through the threaded rod 5.

[0024] A guide rod 2 is fixedly connected to the lower mold 4. Multiple guide rods 2 are provided on the lower mold 4. A guide hole 1 is opened on the upper mold 3. The guide rod 2 is inserted into the guide hole 1. The upper mold 3 and the lower mold 4 can be pre-aligned through the guide hole 1 and the guide rod 2, which facilitates subsequent locking and positioning using the threaded rod 5.

[0025] The guide hole 1 includes an annular portion 6, a guide portion 7, and a U-shaped portion 8. The annular portion 6 is connected to the guide portion 7, and the guide portion 7 is connected to the U-shaped portion 8. The guide portion 7 is located between the annular portion 6 and the U-shaped portion 8. During pre-alignment, the guide rod 2 is first inserted into the annular portion 6 of the guide hole 1. When the upper die 3 is rotated, and the guide rod 2 is located in the U-shaped portion 8, the threaded holes 9 of the upper die 3 and the lower die 4 are aligned. At this time, it is convenient to use the threaded rod 5 for locking and positioning.

[0026] The guide part 7 is wide at one end and narrow at the other. The wide end of the guide part 7 faces the annular part 6, and the diameter of the annular part 6 is larger than that of the U-shaped part 8. The diameter of the U-shaped part 8 is the same as that of the guide rod 2. The guide hole 1 is shaped to facilitate the insertion of the guide rod 2 into the guide hole 1, and also to facilitate the pre-alignment between the upper mold 3 and the lower mold 4.

[0027] The upper mold 3 has a positioning groove 11, and a positioning ring 10 that is adapted to the positioning groove 11 is fixedly connected to the upper mold 3. The positioning ring 10 is inserted into the positioning groove 11. The positioning groove 11 is V-shaped and plays the role of assisting the guide rod 2 in pre-alignment. The shape of the positioning groove 11 makes it convenient for the positioning ring 10 to be inserted into the positioning groove 11.

[0028] A sealing layer is fixedly installed in the positioning groove 11. The sealing layer abuts against the positioning ring 10. When the upper mold 3 and the lower mold 4 are locked and positioned by the threaded rod 5, the sealing layer can ensure the sealing of the connection between the upper mold 3 and the lower mold 4. The end of the guide rod 2 facing the upper mold 3 is chamfered to facilitate the insertion of the guide rod 2 into the guide hole 1.

[0029] The implementation principle of this embodiment is as follows: After the carbon fiber composite material is laid in the cavity 12, the upper mold 3 is connected to the lower mold 4, so that the guide rod 2 of the lower mold 4 is inserted into the annular part 6 of the guide hole 1, the upper mold 3 abuts against the lower mold 4, and the positioning ring 10 is inserted into the positioning groove 11. Then, the upper mold 3 is rotated so that the guide rod 2 moves through the guide part 7 of the guide hole 1 to the U-shaped part 8 of the guide hole 1. At this time, the threaded holes 9 of the upper mold 3 and the lower mold 4 are aligned, which makes it convenient to lock and position the upper mold 3 and the lower mold 4 through the threaded rod 5, thereby achieving the effect of conveniently locking and positioning the upper mold 3 and the lower mold 4 of the wheel rim forming mold.

[0030] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are 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.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A forming mold for a carbon fiber bicycle rim, comprising a main body of the rim forming mold, characterized in that: The main body is provided with a cavity (12), the main body includes an upper die (3) and a lower die (4), the upper die (3) is connected on the lower die (4), the cavity (12) is between the upper die (3) and the lower die (4), a threaded hole (9) is formed on the upper die (3), the threaded hole (9) penetrates the lower die (4), a plurality of threaded holes (9) are arranged on the upper die (3), the threaded hole (9) is threadedly connected with a threaded rod (5), the lower die (4) is fixedly connected with a guide rod (2), a plurality of guide rods (2) are arranged on the lower die (4), a guide hole (1) is formed on the upper die (3), the guide rod (2) is inserted into the guide hole (1), a plurality of threaded holes (9) and a plurality of guide rods (2) are arranged alternately, the guide hole (1) includes a circular ring part (6), a guide part (7) and a U-shaped part (8), the circular ring part (6) is connected on the guide part (7), the guide part (7) is connected on the U-shaped part (8), the guide part (7) is between the circular ring part (6) and the U-shaped part (8).

2. A forming mold for carbon fiber bicycle rims according to claim 1, characterized in that: The guide part (7) is wide at one end and narrow at the other end, and the wide end of the guide part (7) faces the circular ring part (6).

3. A forming mold for carbon fiber bicycle rims according to claim 1, characterized in that: The diameter of the circular ring part (6) is greater than that of the U-shaped part (8), and the diameter of the U-shaped part (8) is the same as that of the guide rod (2).

4. A forming mold for carbon fiber bicycle rims according to claim 1, characterized in that: The end of the guide rod (2) facing the upper die (3) is chamfered.

5. A forming mold for carbon fiber bicycle rims according to claim 1, characterized in that: A positioning groove (11) is formed on the lower die (4), a positioning ring (10) is fixedly connected on the upper die (3), the positioning ring (10) is inserted into the positioning groove (11), and the positioning groove (11) is V-shaped.

6. A forming mold for carbon fiber bicycle rims according to claim 5, characterized in that: A sealing layer is fixedly arranged in the positioning groove (11), and the sealing layer abuts against the positioning ring (10).

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