Die for producing straight cylindrical carbon fiber preform

Abstract

The utility model discloses a mould for producing a straight tubular carbon fiber preform, which relates to the technical field of mould design and manufacture and comprises two mounting discs, a plurality of adjusting grooves are arranged on the surfaces of the two mounting discs, L-shaped rods are slidably mounted in the plurality of adjusting grooves, mould leather is fixedly mounted at the other ends of the L-shaped rods, and the mould leather is fixedly mounted at the other ends of the L-shaped rods. The two mounting discs are arranged on the base, driving holes are formed in the surfaces of the two mounting discs, the same adjusting assembly used for adjusting the mold skin is rotatably mounted in the driving holes, the adjusting assembly comprises driving rods, and the driving rods are rotatably mounted in the two driving holes. The driving rods drive the driving discs to rotate, the driving discs drive the driving blocks to get close to each other, the driving blocks drive the corresponding L-shaped rods to get close to each other, and the L-shaped rods drive the corresponding mold skins to move, so that the mold skins are gathered together, the radius of the mold skins is reduced, and rapid demolding of the woven carbon fiber preform is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of mold design and manufacturing, in particular to a mold for producing a straight-cylinder carbon fiber preform. Background Art

[0002] A straight-cylindrical carbon fiber preform is a composite material reinforcement with a specific shape. It uses carbon fiber as raw material and is formed by weaving, braiding, stitching, and acupuncture. When weaving the straight-cylindrical carbon fiber preform, a mold is required to assist in weaving in order to ensure its accurate size.

[0003] In the prior art, publication number CN213896231U discloses a special mold for producing straight-cylinder carbon fiber preforms, which includes a mold body, a correction device, and scale lines arranged on the outer surface of the mold body; the mold body includes a rotating shaft with one end detachably connected to the robot arm, support plates respectively arranged at both ends of the rotating shaft, and a split mold skin detachably connected between the support plates; the correction device includes a distance sensor for detecting the distance between the correction device and the mold body. The special mold provided by the utility model is provided with a correction device to monitor the weaving process of the carbon fiber preform, thereby reducing the scrap rate of the finished product; the scale lines are provided so that the operator can easily grasp the weaving height of the straight-cylinder carbon fiber preform by observing the scale lines, and thus grasp the progress of the weaving process.

[0004] However, the device still has some problems. A straight cylindrical mold body is set to extend into the center of the weaving ring, and a straight cylindrical carbon fiber preform is woven on the mold. A correction device is set to monitor whether the mold is offset during the weaving process of the carbon fiber preform, thereby reducing the scrap rate of the final product. In actual use, after the weaving is completed, it needs to be demolded. The carbon fiber preform after weaving in the device needs to be tightly attached to the mold surface during the production process, which leads to the problem that it will be tightly attached to the mold surface during the demolding process, making it difficult to demold. Therefore, we disclose a mold for producing straight cylindrical carbon fiber preforms to meet people's needs. Utility Model Content

[0005] The purpose of the present application is to provide a mold for producing straight cylindrical carbon fiber preforms, so as to solve the problem proposed in the above-mentioned background technology that demolding is required after the weaving is completed. However, the carbon fiber preforms after weaving in the device need to be tightly attached to the mold surface during the production process, which leads to the problem that the carbon fiber material needs to be tightly attached to the mold surface during the separation process, making demolding difficult.

[0006] To achieve the above objectives, the present application provides the following technical solution: a mold for producing a straight cylindrical carbon fiber preform, comprising two mounting plates, each of the mounting plates having a plurality of adjustment slots formed on its surface, each of the adjustment slots having an L-shaped rod slidably mounted therein, the other end of each L-shaped rod being fixedly mounted with a mold skin, and each of the mounting plates having a drive hole formed on its surface, wherein an adjustment assembly for adjusting the mold skin is rotatably mounted therein;

[0007] The adjustment assembly includes a driving rod, which is rotatably installed in the two driving holes. Two driving disks are fixedly installed on the surface of the driving rod. Several arc grooves are opened on the surfaces of the two driving disks. Driving blocks are slidably installed in several of the arc grooves. Several of the driving blocks are fixedly installed on one end of the L-shaped rod.

[0008] Preferably, a rotating knob is fixedly installed at one end of the driving rod, a mounting plate is fixedly installed on one side of one of the mounting plates, a mounting cylinder is fixedly installed on one side of the mounting plate, a fixed block is slidably installed in the mounting cylinder, an end of the fixed block close to the rotating knob is set to an arc shape, and a plurality of arc-shaped fixing grooves are opened on the surface of the rotating knob.

[0009] Preferably, a return spring is fixedly mounted on one side of the fixing block.

[0010] Preferably, a sliding opening is opened on one side of the installation tube, a shift block is slidably installed in the sliding opening, and one side of the shift block is fixedly installed on one side of the fixed block.

[0011] Preferably, a bobbin is rotatably mounted on the surface of the driving rod, a plurality of telescopic rods are fixedly mounted on the surface of the bobbin, and the other ends of the telescopic rods are correspondingly fixedly mounted on the inner walls of the plurality of mold skins.

[0012] Preferably, a connecting block is fixedly mounted on one side of the other mounting plate, a rotating shaft is fixedly mounted on one end of the connecting block, and a rectangular mounting block is fixedly mounted on the surface of the rotating shaft.

[0013] Preferably, the surface of the mold skin is provided with scale lines.

[0014] In summary, the technical effects and advantages of the utility model are:

[0015] 1. In the present invention, by rotating the rotary knob, the rotary knob drives the driving rod to rotate, the driving rod drives the driving disk to rotate, the driving disk drives the driving blocks to approach each other, the driving blocks drive the corresponding L-shaped rods to approach each other, and the L-shaped rods drive the corresponding mold skins to move, so that they gather together and thus reduce their radius, which is convenient for rapid demolding of the woven carbon fiber preform.

[0016] 2. In the present invention, after the adjustment of the mold skin is completed, the shift block is loosened and the fixed block is driven close to the rotating knob under the action of the reset spring, so that the arc-shaped area of ​​the fixed block close to the rotating knob is fitted into the arc-shaped fixed groove on the surface of the rotating knob, thereby locking the rotating knob and achieving the effect of positioning the mold skin. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-section structure of the bobbin of the present utility model;

[0020] Figure 3 This is a schematic diagram of the exploded structure of the installation plate and its related structures of the utility model;

[0021] Figure 4 It is a schematic diagram of the cross-section structure of the installation cylinder in the present utility model.

[0022] In the figure: 1. Mounting plate; 2. Driving rod; 3. Bobbin; 4. Telescopic rod; 5. Mold skin; 6. Driving plate; 7. Driving block; 8. L-shaped rod; 9. Turning knob; 10. Mounting plate; 11. Mounting barrel; 12. Fixing block; 13. Shifting block; 14. Return spring; 15. Connecting block; 16. Rotating shaft; 17. Rectangular mounting block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1 、 Figure 2 and Figure 3 , Example 1 provided by the present utility model

[0025] A mold for producing a straight cylindrical carbon fiber preform comprises two mounting plates 1. The surfaces of the two mounting plates 1 are provided with a plurality of adjustment grooves. L-shaped rods 8 are slidably mounted in the plurality of adjustment grooves. A mold skin 5 is fixedly mounted on the other end of the L-shaped rods 8. The surfaces of the two mounting plates 1 are provided with drive holes. An adjustment assembly for adjusting the mold skin 5 is rotatably mounted in the drive holes.

[0026] The adjustment component includes a driving rod 2, which is rotatably installed in two driving holes. Two driving disks 6 are fixedly installed on the surface of the driving rod 2. Several arc grooves are provided on the surfaces of the two driving disks 6. Driving blocks 7 are slidably installed in the several arc grooves. Several driving blocks 7 are fixedly installed at one end of the L-shaped rod 8. The two mounting disks 1 are connected by a driving rod 2. The two mounting disks 1 are distributed at both end areas of the driving rod 2. Four adjustment grooves are provided on the mounting disk 1 and are perpendicular to each other. An L-shaped rod 8 is slidably installed in each adjustment groove. The same mold skin 5 is installed between the two symmetrical L-shaped rods 8. A total of four mold skins 5 are provided. The mold skin 5 is in the shape of a quarter arc and carbon fiber can be woven on its surface. The adjustment component can adjust each L-shaped rod 8 to expand or contract at the same time, thereby achieving radius adjustment of the mold skin 5.

[0027] like Figure 2 As shown, a barrel 3 is rotatably mounted on the surface of the driving rod 2, and a plurality of telescopic rods 4 are fixedly mounted on the surface of the barrel 3. The other ends of the telescopic rods 4 are correspondingly fixedly mounted on the inner walls of a plurality of mold skins 5. When the mold skins 5 are adjusted, the stability of the mold skins 5 during movement and use can be improved by the telescopic rods 4.

[0028] like Figure 2 As shown, a connecting block 15 is fixedly installed on one side of another mounting plate 1, a rotating shaft 16 is fixedly installed on one end of the connecting block 15, and a rectangular mounting block 17 is fixedly installed on the surface of the rotating shaft 16. A mounting hole is opened on the surface of the rotating shaft 16 so that the device can be directly connected to the robot arm. At the same time, the rectangular mounting block 17 installed on the surface of the rotating shaft 16 can provide an additional mounting method to facilitate its installation.

[0029] like Figure 1 As shown, the surface of the mold skin 5 is provided with scale lines, through which the weaving height can be observed, so as to facilitate the control of the entire weaving process.

[0030] When in use, first determine the radius size of the carbon fiber preform to be woven, then rotate the drive rod 2, adjust the radius of the mold skin 5 to meet the weaving radius size, and then connect it to the robotic arm through the rotating shaft 16 or the rectangular mounting block 17 and weave. When weaving is completed, rotate the drive rod 2 in the opposite direction, the drive rod 2 drives the drive disk 6 to rotate, the drive disk 6 drives the drive blocks 7 to approach each other, the drive blocks 7 drive the corresponding L-shaped rods 8 to approach each other, and the L-shaped rods 8 drive the corresponding mold skins 5 to move, so that they are gathered together to reduce their radius, which is convenient for quickly demolding the woven carbon fiber preform.

[0031] Example 2

[0032] like Figure 4 As shown, a rotating knob 9 is fixedly installed on one end of the driving rod 2, a mounting plate 10 is fixedly installed on one side of one mounting disk 1, a mounting cylinder 11 is fixedly installed on one side of the mounting plate 10, a fixed block 12 is slidably installed in the mounting cylinder 11, and an end of the fixed block 12 close to the rotating knob 9 is set to an arc shape, and a plurality of arc-shaped fixing grooves are provided on the surface of the rotating knob 9. A reset spring 14 is fixedly installed on one side of the fixed block 12, a sliding opening is provided on one side of the mounting cylinder 11, and a shift block 13 is slidably installed in the sliding opening, and one side of the shift block 13 is fixedly installed on one side of the fixed block 12.

[0033] When the adjustment of the mold skin 5 is completed, the shift block 13 is loosened and the fixing block 12 is driven close to the rotating knob 9 under the action of the return spring 14, so that the arc-shaped area of ​​the fixing block 12 close to the rotating knob 9 is fitted into the arc-shaped fixing groove on the surface of the rotating knob 9, thereby locking the rotating knob 9 and achieving the effect of positioning the mold skin 5.

[0034] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A mold for producing a straight cylindrical carbon fiber preform, comprising two mounting plates (1), characterized in that: A plurality of adjustment slots are provided on the surfaces of the two mounting plates (1), and an L-shaped rod (8) is slidably installed in each of the adjustment slots. The mold skin (5) is fixedly installed at the other end of the L-shaped rod (8). A driving hole is provided on the surfaces of the two mounting plates (1), and an adjustment component for adjusting the mold skin (5) is rotatably installed in the driving hole. The adjustment component comprises a driving rod (2), wherein the driving rod (2) is rotatably mounted in the two driving holes, and two driving disks (6) are fixedly mounted on the surface of the driving rod (2), and a plurality of arc-shaped grooves are provided on the surfaces of the two driving disks (6), wherein driving blocks (7) are slidably mounted in the plurality of arc-shaped grooves, and the plurality of driving blocks (7) are fixedly mounted on one end of the L-shaped rod (8) accordingly.

2. The mold for producing a straight cylindrical carbon fiber preform according to claim 1, characterized in that: A rotating knob (9) is fixedly mounted on one end of the driving rod (2), a mounting plate (10) is fixedly mounted on one side of one of the mounting plates (1), a mounting tube (11) is fixedly mounted on one side of the mounting plate (10), a fixing block (12) is slidably mounted in the mounting tube (11), an end of the fixing block (12) close to the rotating knob (9) is arranged in an arc shape, and a surface of the rotating knob (9) is provided with a plurality of arc-shaped fixing grooves.

3. The mold for producing a straight cylindrical carbon fiber preform according to claim 2, characterized in that: A return spring (14) is fixedly mounted on one side of the fixed block (12).

4. The mold for producing a straight cylindrical carbon fiber preform according to claim 3, characterized in that: A sliding opening is provided on one side of the installation cylinder (11), a shifting block (13) is slidably installed in the sliding opening, and one side of the shifting block (13) is fixedly installed on one side of the fixed block (12).

5. The mold for producing a straight cylindrical carbon fiber preform according to claim 1, characterized in that: A barrel (3) is rotatably mounted on the surface of the driving rod (2), and a plurality of telescopic rods (4) are fixedly mounted on the surface of the barrel (3). The other ends of the telescopic rods (4) are correspondingly fixedly mounted on the inner walls of the plurality of mold skins (5).

6. The mold for producing a straight cylindrical carbon fiber preform according to claim 1, characterized in that: A connection block (15) is fixedly mounted on one side of the other mounting plate (1), a rotating shaft (16) is fixedly mounted on one end of the connection block (15), and a rectangular mounting block (17) is fixedly mounted on the surface of the rotating shaft (16).

7. The mold for producing a straight cylindrical carbon fiber preform according to claim 1, characterized in that: The surface of the mold skin (5) is provided with scale lines.

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