Integrated forming die for carbon fiber wheel framework
By designing retracting components and limiting components in carbon fiber wheel rim molds, the error problem caused by core mold displacement is solved, the demolding efficiency is improved, and the efficient molding and demolding of carbon fiber wheel rims is achieved.
Patent Information
- Application Number
- CN202420330195.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-22
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-02-22
AI Technical Summary
The core molds of existing carbon fiber wheel rim molds are prone to displacement during the inflation process, resulting in large errors in the produced wheel rims and low demolding efficiency.
A carbon fiber wheel bone integral molding mold is designed, adopting retraction components and limiting components, including mounting cylinders, bidirectional screws, moving blocks, extrusion rods and gears, and drives the core mold by rotating the bidirectional screws and push rods. Move inward to achieve tight fit and release of the core mold and wheel bone.
It effectively reduces errors in rim production, improves mold release efficiency, and enables the core mold to be close to the inner wall of the wheel bone, making it easier to demold efficiently.
Smart Images
Figure CN222201288U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of carbon fiber wheel rim molds, in particular to a carbon fiber wheel rim integral molding mold. Background Art
[0002] With the development of science and technology, in order to reduce the weight of bicycles, bicycle rims are made of carbon fiber materials. Carbon fiber rims require molds in the production process. The molds used to produce bicycles include an upper mold, a lower mold and a core mold arranged between the upper mold and the lower mold. In the production process of carbon fiber bicycle rims, carbon fiber cloth needs to be placed in a pre-set mold to make a pre-shaped carbon fiber rim. The pre-shaped carbon fiber rim is filled with an airbag ring. Before the carbon fiber rim is cured, the pre-set rim needs to be placed in the mold and the airbag needs to be inflated to make the carbon fiber cloth fully fit the mold and shape it.
[0003] However, in the use of the existing mold, the core mold is clamped between the upper mold and the lower mold through the core mold cavity. During the inflation process, the core mold is easily displaced, resulting in large errors in the produced wheel rims.
[0004] The existing patent (publication number: CN 218476982 U) discloses a carbon fiber bicycle wheel rim anti-displacement mold, which includes a support frame, firstly placing a plurality of core molds on a lower mold to assemble into a ring body, then placing a preset carbon fiber rim close to the core mold and the lower mold, and then pressing the upper mold onto the core mold to make the wedge-shaped positioning bolt and the positioning groove. After the upper mold and the lower mold are pressed down or locked, the wedge-shaped positioning bolt pushes the positioning groove to move so that the core mold is more tightly connected; when the airbag inside the preset carbon fiber rim is inflated, the airbag cannot push the core mold to move during the expansion process, thereby reducing the error of the rim and reducing the production of defective products.
[0005] However, the above technical solution still has certain defects. After the wheel frame is formed, the core mold of the above device cannot be effectively moved inward, and the outer wall of the core mold is close to the inner wall of the wheel frame, resulting in low efficiency during demoulding. For this reason, a carbon fiber wheel frame one-piece molding mold is proposed. Utility Model Content
[0006] Based on this, the purpose of the utility model is to provide a carbon fiber wheel frame one-piece molding die to solve the technical problems raised in the above background.
[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a carbon fiber wheel frame one-piece molding mold, comprising an upper mold, a core mold is arranged below the upper mold, a lower mold is arranged below the core mold, a retraction assembly is arranged inside the core mold, and the retraction assembly includes a mounting cylinder, a limiting assembly and a bidirectional screw are arranged inside the mounting cylinder, a moving block is arranged on the outer wall of the bidirectional screw, and the bidirectional screw is rotatably installed on the inner wall of the mounting cylinder, a first mounting block is arranged on the outer wall of the moving block, an extrusion rod is arranged on one side of the first mounting block, a second mounting block is arranged on one side of the extrusion rod, and the outer wall of the moving block is fixedly connected to the first mounting block.
[0008] As an optimal technical solution for a carbon fiber wheel frame one-piece forming mold of the utility model, the moving blocks are symmetrically arranged in two groups about the central axis of the core mold, the two groups of moving blocks are threadedly sleeved on the outer wall of the bidirectional screw rod, and the threads inside the two groups of moving blocks are relatively arranged.
[0009] As a preferred technical solution of a carbon fiber wheel frame one-piece molding die of the utility model, the first mounting block and the second mounting block are movably connected by an extrusion rod, and the second mounting block is fixedly mounted on the inner wall of the core mold, and the core mold has four groups arranged circumferentially.
[0010] As an optimal technical solution for a carbon fiber wheel frame one-piece molding mold of the utility model, a first connecting block is fixed to the inner wall of the upper mold, a second connecting block is fixed to the inner wall of the lower mold, the second connecting block is connected to the first connecting block by a screw and a nut, sealing blocks are installed at the lower end of the upper mold and the upper end of the lower mold, and the gap between the sealing block and the core mold matches, and a clamping ring is provided on the outer wall of the core mold.
[0011] As an optimal technical solution for a carbon fiber wheel frame one-piece molding mold of the utility model, the limiting assembly includes a gear, a gear ring is provided on the outer wall of the gear, a moving ring is provided on the outer wall of the gear ring, a push rod and a fixed cylinder are provided above the moving circle, and one end of the push rod extends to the outer wall of the mounting cylinder and is connected to the pressure plate.
[0012] As an optimal technical solution for a carbon fiber wheel frame one-piece molding mold of the utility model, the gear is fixedly sleeved on the outer wall of the bidirectional screw rod, the outer wall of the gear is meshed with the inner wall of the gear ring, the gear ring is fixedly installed on the inner wall of the moving circle, and the moving circle is fixedly connected to the push rod.
[0013] As an optimal technical solution for a carbon fiber wheel frame one-piece molding mold of the utility model, the push rod is slidably installed on the inner wall of the fixed cylinder, a spring is provided on the inner wall of the fixed cylinder, and the spring is sleeved on the outer wall of the push rod, one end of the fixed cylinder is fixedly installed on the inner wall of the mounting cylinder, a cross ring is provided in the middle position of the pressure plate, and the cross ring is fixedly connected to one end of the bidirectional screw rod.
[0014] In summary, the utility model mainly has the following beneficial effects:
[0015] The utility model provides a recovery component, when the wheel bone inside the mold is formed, the bolts and nuts connecting the upper mold and the lower mold are disassembled, so that the upper mold and the lower mold are separated from the core mold, and at the same time, the two-way screw rod is driven to rotate, and the core mold is driven to move inward, so that the outer wall of the core mold is separated from the inner wall of the wheel bone, thereby improving the demoulding efficiency. The limit component provided can limit the two-way screw rod. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is the front view of the utility model;
[0017] Figure 2 This is a main split view of the utility model;
[0018] Figure 3 This is a bottom-up split diagram of the utility model;
[0019] Figure 4 This is a front cross-sectional view of the installation tube of the utility model;
[0020] Figure 5 It is a front cross-sectional view of the installation tube of the utility model.
[0021] In the figure: 1, upper mold; 110, first connecting block; 2, lower mold; 210, second connecting block; 3, sealing block; 4, clamping ring; 5, core mold; 610, mounting cylinder; 620, bidirectional screw rod; 630, moving block; 640, first mounting block; 650, extrusion rod; 660, second mounting block; 710, gear; 720, gear ring; 730, moving ring; 740, push rod; 750, fixed cylinder; 760, pressure plate; 770, cross ring. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.
[0023] The following describes an embodiment of the utility model based on its overall structure.
[0024] A carbon fiber wheel frame integral molding die, such as Figure 1-5As shown, it includes an upper mold 1, a core mold 5 is arranged below the upper mold 1, a lower mold 2 is arranged below the core mold 5, a retraction component is arranged inside the core mold 5, and the retraction component includes a mounting cylinder 610, a limit assembly and a bidirectional screw 620 are arranged inside the mounting cylinder 610, a moving block 630 is arranged on the outer wall of the bidirectional screw 620, and the bidirectional screw 620 is rotatably mounted on the inner wall of the mounting cylinder 610, a first mounting block 640 is arranged on the outer wall of the moving block 630, an extrusion rod 650 is arranged on one side of the first mounting block 640, and a second mounting block 660 is arranged on one side of the extrusion rod 650, the outer wall of the moving block 630 is fixedly connected to the first mounting block 640, and the moving block 630 is symmetrically provided with two The two groups of moving blocks 630 are connected to the outer wall of the bidirectional screw rod 620 through threads, and the threads inside the two groups of moving blocks 630 are relatively arranged. The first mounting block 640 and the second mounting block 660 are movably connected through the extrusion rod 650, and the second mounting block 660 is fixedly installed on the inner wall of the core mold 5. There are four groups of core mold 5 arranged circumferentially. The first connecting block 110 is fixed to the inner wall of the upper mold 1, and the second connecting block 210 is fixed to the inner wall of the lower mold 2. The second connecting block 210 is connected to the first connecting block 110 through a screw and a nut. The lower end of the upper mold 1 and the upper end of the lower mold 2 are both installed with sealing blocks 3, and the gap between the sealing block 3 and the core mold 5 matches, and the outer wall of the core mold 5 is provided with a clamping ring 4.
[0025] Assemble the upper mold 1 and the lower mold 2 on both sides of the core mold 5 by bolts and nuts, and then evenly bond the carbon cloth to the outer wall of the core mold 5, and press it with the clamping ring 4. When the carbon cloth on the outer wall of the core mold 5 is formed, remove the clamping ring 4, and then remove the upper and lower molds 2, rotate the bidirectional screw 620, drive the moving block 630 and the first mounting block 640 to move on both sides, and at the same time drive the second mounting block 660 to move inward through the extrusion rod 650, thereby driving the outer wall of the core mold 5 to separate from the inner wall of the wheel bone, so as to facilitate the demolding of the wheel bone.
[0026] Please refer to Figure 1 and Figure 5 The limiting assembly includes a gear 710, a gear ring 720 is provided on the outer wall of the gear 710, a moving ring 730 is provided on the outer wall of the gear ring 720, a push rod 740 and a fixed cylinder 750 are provided above the moving ring 730, one end of the push rod 740 extends to the outer wall of the mounting cylinder 610 and is connected to the pressing plate 760, the gear 710 is fixedly sleeved on the outer wall of the bidirectional screw rod 620, the outer wall of the gear 710 is engaged with the inner wall of the gear ring 720, the gear ring 720 is fixedly installed on the inner wall of the moving ring 730, the moving ring 730 is fixedly connected to the push rod 740, the push rod 740 is slidably installed on the inner wall of the fixed cylinder 750, a spring is provided on the inner wall of the fixed cylinder 750, and the spring is sleeved on the outer wall of the push rod 740, one end of the fixed cylinder 750 is fixedly installed on the inner wall of the mounting cylinder 610, a cross ring 770 is provided in the middle position of the pressing plate 760, and the cross ring 770 is fixedly connected to one end of the bidirectional screw rod 620.
[0027] When it is necessary to rotate the bidirectional screw rod 620, push the pressure plate 760 downward, and drive the moving ring 730 and the gear ring 720 downward through the push rod 740, so that the serrations on the inner wall of the gear ring 720 disengage from the serrations on the outer wall of the gear 710, thereby releasing the limit on the bidirectional screw rod 620, and then rotate the cross ring 770 through the cross wrench to drive the bidirectional screw rod 620 to rotate. After the rotation is completed, release the pressure plate 760, drive the spring on the outer wall of the push rod 740, drive the gear ring 720 to reset, engage with the gear 710, and limit the bidirectional screw rod 620.
[0028] When in use, the upper mold 1 and the lower mold 2 are assembled on both sides of the core mold 5 by bolts and nuts, and then the carbon cloth is evenly bonded to the outer wall of the core mold 5 and compressed by the clamping ring 4. When the carbon cloth on the outer wall of the core mold 5 is formed, the clamping ring 4 is disassembled, and then the upper and lower molds 2 are disassembled, and the bidirectional screw rod 620 is rotated to drive the moving block 630 and the first mounting block 640 to move on both sides. At the same time, the second mounting block 660 is driven inward by the extrusion rod 650, thereby driving the outer wall of the core mold 5 to separate from the inner wall of the wheel bone, which is convenient for the demoulding of the wheel bone. When it is necessary to rotate the bidirectional screw rod 620, Push the pressure plate 760 downward, and drive the moving ring 730 and the ring gear 720 downward through the push rod 740, so that the serrations on the inner wall of the ring gear 720 disengage from the serrations on the outer wall of the gear 710, thereby releasing the limit on the bidirectional lead screw 620, and then rotate the cross ring 770 through a cross wrench to drive the bidirectional lead screw 620 to rotate. After the rotation is completed, release the pressure plate 760, drive the spring on the outer wall of the push rod 740, drive the ring gear 720 to reset, engage with the gear 710, and limit the bidirectional lead screw 620. The parts not involved in the device are the same as the prior art or can be implemented using the prior art.
[0029] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.
Claims
1. A carbon fiber wheel frame integral molding die, comprising an upper die (1), characterized in that: A core mold (5) is arranged below the upper mold (1), a lower mold (2) is arranged below the core mold (5), and a retracting component is arranged inside the core mold (5); The retraction assembly comprises a mounting tube (610), a limit assembly and a bidirectional screw rod (620) are arranged inside the mounting tube (610), a moving block (630) is arranged on the outer wall of the bidirectional screw rod (620), and the bidirectional screw rod (620) is rotatably mounted on the inner wall of the mounting tube (610), a first mounting block (640) is arranged on the outer wall of the moving block (630), an extrusion rod (650) is arranged on one side of the first mounting block (640), a second mounting block (660) is arranged on one side of the extrusion rod (650), and the outer wall of the moving block (630) is fixedly connected to the first mounting block (640).
2. The carbon fiber wheel frame integral molding die according to claim 1, characterized in that: The moving blocks (630) are arranged in two groups symmetrically about the central axis of the core mold (5). The two groups of moving blocks (630) are connected to the outer wall of the bidirectional screw rod (620) through threads, and the threads inside the two groups of moving blocks (630) are arranged opposite to each other.
3. The carbon fiber wheel frame integral molding die according to claim 1, characterized in that: The first mounting block (640) and the second mounting block (660) are movably connected via an extrusion rod (650), and the second mounting block (660) is fixedly mounted on the inner wall of the core mold (5), and the core mold (5) has four groups arranged around the circumference.
4. The carbon fiber wheel frame integral molding die according to claim 1, characterized in that: A first connecting block (110) is fixed to the inner wall of the upper mold (1), and a second connecting block (210) is fixed to the inner wall of the lower mold (2); the second connecting block (210) is connected to the first connecting block (110) via a screw and a nut; a sealing block (3) is installed at the lower end of the upper mold (1) and the upper end of the lower mold (2); the gap between the sealing block (3) and the core mold (5) matches; and a clamping ring (4) is provided on the outer wall of the core mold (5).
5. The carbon fiber wheel frame integral molding die according to claim 1, characterized in that: The limiting assembly includes a gear (710), a gear ring (720) is provided on the outer wall of the gear (710), a moving ring (730) is provided on the outer wall of the gear ring (720), a push rod (740) and a fixed cylinder (750) are provided above the moving ring (730), and one end of the push rod (740) extends to the outer wall of the mounting cylinder (610) and is connected to the pressure plate (760).
6. The carbon fiber wheel frame integral molding die according to claim 5, characterized in that: The gear (710) is fixedly sleeved on the outer wall of the bidirectional screw rod (620), the outer wall of the gear (710) is meshed with the inner wall of the gear ring (720), the gear ring (720) is fixedly installed on the inner wall of the moving ring (730), and the moving ring (730) is fixedly connected to the push rod (740).
7. The carbon fiber wheel frame integral molding die according to claim 5, characterized in that: The push rod (740) is slidably mounted on the inner wall of the fixed cylinder (750), the inner wall of the fixed cylinder (750) is provided with a spring, and the spring is sleeved on the outer wall of the push rod (740), one end of the fixed cylinder (750) is fixedly mounted on the inner wall of the mounting cylinder (610), a cross ring (770) is provided at the middle position of the pressure plate (760), and the cross ring (770) is fixedly connected to one end of the bidirectional screw rod (620).