Marine carbon fiber propeller blade forming device

Abstract

The utility model discloses marine carbon fiber propeller blade forming device relates to propeller blade forming technical field, and the utility model discloses a hot pressing equipment, one side of hot pressing equipment is equipped with forming mechanism, is used for carbon fiber propeller blade hot press forming, and forming mechanism includes: the pressing assembly includes the upper die of setting hot pressing equipment one side upper part, and the lower part of one side of hot pressing equipment is equipped with lower die, when the cylinder drives the upper die to go down, through the transmission rod of its both sides and promotes the rotation of rotating block, and then drives the transmission rod connected with lower die, and the synchronous upward movement of lower die is pulled, realizes the synchronous opposite movement of upper and lower mould, makes it can from the blank upper and lower two sides simultaneously, evenly exert forming pressure, effectively avoided the problem of the uneven internal pressure of the cavity of traditional single action press because of pressure transmission gradient, thereby significantly improved the compactness of marine propeller blade forming.

Description

Technical Field

[0001] This utility model relates to the field of propeller blade forming technology, specifically to a marine carbon fiber propeller blade forming device. Background Technology

[0002] Carbon fiber composites, with their advantages of high strength, low density, and corrosion resistance, have become the core manufacturing material for marine propeller blades. The molding quality of carbon fiber propeller blades directly determines their mechanical properties and service life. Currently, the mainstream process in the industry is hot pressing molding, which uses hot pressing equipment to drive the mold to apply pressure to the carbon fiber prepreg blank and heat it to cure, thus completing the blade molding.

[0003] Traditional marine carbon fiber propeller blades are mainly manufactured using hot pressing. However, existing hot pressing equipment often uses a unidirectional movement method during manufacturing. This means that the upper mold moves downward through a drive mechanism to close with the fixed lower mold and apply pressure and heat to the carbon fiber prepreg placed in the cavity to solidify it. However, this method can only apply pressure from one direction. For large propeller blades with complex three-dimensional curved surfaces, the pressure distribution inside the cavity is uneven, and there is a significant transmission gradient, which can easily lead to problems with the molding accuracy and structural strength of the blade products.

[0004] Therefore, this utility model provides a device for forming marine carbon fiber propeller blades. Utility Model Content

[0005] To address the problem that uneven pressure distribution in traditional unidirectional hot pressing processes severely restricts the forming accuracy and final structural strength of large marine carbon fiber propeller blades, the purpose of this invention is to provide a forming device for marine carbon fiber propeller blades.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a marine carbon fiber propeller blade forming device, including a hot pressing device, wherein a forming mechanism is provided on one side of the hot pressing device for hot pressing and forming carbon fiber propeller blades, and the forming mechanism includes: The pressing assembly includes an upper mold located on the upper part of one side of the hot press equipment, a lower mold located on the lower part of one side of the hot press equipment, four evenly distributed guide rods on one side of the hot press equipment, the upper mold and the lower mold being slidably engaged on the outer surface of the guide rods, two symmetrically distributed rotating blocks being rotatably installed in the middle of one side of the hot press equipment, and transmission rods being rotatably installed at both ends of the two rotating blocks, with one end of each of the four transmission rods being installed in the middle of the two sides of the upper mold and the lower mold respectively, and a drive assembly located in the middle of the top of the upper mold; A protective component, located on one side of the upper mold, is used to isolate hazardous areas.

[0007] Preferably, the protection component includes a fixed frame fixedly installed on one side of the upper part of the hot press equipment, an mounting plate fixedly installed on one side of the upper mold, a drive rod movably installed on one side of the mounting plate, a driven rod movably installed on the other end of the drive rod, the other end of the driven rod movably installed on the lower part of the fixed frame, a protective stop bar provided on one side of the lower part of the fixed frame, and an upper end of the protective stop bar fixedly installed on the middle of one end of the driven rod.

[0008] Preferably, the driving assembly includes a cylinder fixedly installed on one side of the top of the hot press equipment, and the driving end of the cylinder is fixedly installed at the middle of the top of the upper mold.

[0009] Preferably, linear bearings are fixedly installed at the four corners of the upper and lower molds, and the four guide rods are slidably locked in the middle of the linear bearings.

[0010] Preferably, four evenly distributed buffer springs are fixedly installed at the opposite ends of the upper mold and the lower mold, and one end of each buffer spring is fixedly installed on the inner wall of the hot press equipment.

[0011] Preferably, the outer surface of the protective bar is bonded with a rubber protective layer, and the surface of the rubber protective layer facing the operator has a continuous wavy anti-slip texture.

[0012] Beneficial effects This invention provides a device for forming carbon fiber propeller blades for marine applications. Compared with existing technologies, it has the following advantages: 1. When the cylinder drives the upper mold to move downward, the transmission rods on both sides of the upper mold drive the rotating block to rotate, which in turn drives the transmission rod connected to the lower mold to pull the lower mold to move upward synchronously. This achieves synchronous opposite movement of the upper and lower molds, enabling the molding pressure to be applied simultaneously and evenly from both the upper and lower surfaces of the blank. This effectively avoids the problem of uneven pressure inside the cavity caused by the pressure transmission gradient in traditional single-action presses, greatly ensuring the uniformity of resin distribution and the stability of fiber content in carbon fiber prepreg, thereby significantly improving the density of marine propeller blade molding.

[0013] 2. When the upper mold moves down, this application drives the mounting plate to move synchronously. The active rod pushes the driven rod to rotate around the hinge point of the fixed frame, thereby driving the protective stop bar to swing from the non-working area through the front of the mold closing area and then swing to the other side. This automatically and instantly isolates the dangerous mold closing area with high temperature and high pressure, effectively preventing the operator's arm from accidentally entering and causing unnecessary injury. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the pressing component structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the guide rod structure of this utility model.

[0017] Figure 4 This is a schematic diagram of the protective component structure of this utility model.

[0018] In the diagram: 1. Hot pressing equipment; 2. Forming mechanism; 21. Pressing assembly; 211. Cylinder; 212. Upper mold; 213. Lower mold; 214. Rotating block; 215. Transmission rod; 216. Linear bearing; 217. Buffer spring; 218. Guide rod; 22. Protective assembly; 221. Fixing frame; 222. Mounting plate; 223. Driving rod; 224. Driven rod; 225. Protective stop bar. Detailed Implementation

[0019] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 This utility model provides a technical solution: a marine carbon fiber propeller blade forming device, including a hot pressing device 1, and a forming mechanism 2 on one side of the hot pressing device 1 for hot pressing and forming carbon fiber propeller blades. The forming mechanism 2 includes: The pressing assembly 21 includes an upper mold 212 located on the upper part of one side of the hot pressing device 1, and a lower mold 213 located on the lower part of one side of the hot pressing device 1. The opposing surfaces of the upper mold 212 and the lower mold 213 are each provided with curved cavities adapted to carbon fiber propeller blades. Four evenly distributed guide rods 218 are provided on one side of the hot pressing device 1. The upper mold 212 and the lower mold 213 are slidably engaged on the outer surface of the guide rods 218. Two symmetrically distributed rotating blocks 214 are rotatably mounted in the middle of one side of the hot pressing device 1. Both ends of 4 are rotatably mounted with transmission rods 215. One end of each of the four transmission rods 215 is respectively installed on the middle of the two sides of the upper mold 212 and the lower mold 213. The top center of the upper mold 212 is provided with a drive assembly. When the hot-pressed material is placed into the cavity of the lower mold 213, the upper mold 212 moves downward and approaches the lower mold 213. Under the transmission of its transmission rods 215 and the deflection of the rotating block 214, the upper mold 212 and the lower mold 213 move synchronously and towards each other, applying pressure to the hot-pressed material from both sides simultaneously. The protective component 22 is disposed on one side of the upper mold 212 to isolate the dangerous area.

[0021] The protective assembly 22 includes a fixed bracket 221 fixedly installed on one side of the upper part of the hot press equipment 1. A mounting plate 222 is fixedly installed on one side of the upper part of the upper mold 212. The mounting plate 222 is fixed to one side of the upper mold 212 by bolts. An active rod 223 is movably installed on one side of the mounting plate 222. A driven rod 224 is movably installed on the other end of the active rod 223. The other end of the driven rod 224 is movably installed on the lower part of the fixed bracket 221. A protective stop bar 225 is provided on one side of the lower part of the fixed bracket 221. One upper end of the protective stop bar 225 is fixedly installed... At the middle of one end of the driven rod 224, when the upper mold 212 moves downward, it causes the mounting plate 222 to move downward synchronously. Since the driving rod 223 is installed on one side of the mounting plate 222 and is connected to the driven rod 224 and the protective stop rod 225, the downward movement of the mounting plate 222 causes one end of the driving rod 223 to move downward, which in turn causes the rotation of one end of the fixed frame 221 to drive the protective stop rod 225 to deflect. So that when the upper mold 212 contacts the lower mold 213, the protective stop rod 225 rotates from the leftmost end to the rightmost end.

[0022] The drive assembly includes a cylinder 211 fixedly installed on one side of the top of the hot press equipment 1. The drive end of the cylinder 211 is fixedly installed at the middle of the top of the upper mold 212. The cylinder 211 can be an SMC standard cylinder model JMDBB32-50-M9BW. Driven by the cylinder 211, the upper mold 212 can be moved up and down to control the mold closing and opening.

[0023] Linear bearings 216 are fixedly installed at the four corners of the upper mold 212 and the lower mold 213. Four guide rods 218 are slidably locked in the middle of the linear bearings 216. The linear bearings 216 are made of high carbon chromium bearing steel and have a polytetrafluoroethylene cage in their inner ring. The sliding of the linear bearings 216 on the outer surface of the guide rods 218 can guide the movement of the upper mold 212 and the lower mold 213.

[0024] Four evenly distributed buffer springs 217 are fixedly installed at the opposite ends of the upper mold 212 and the lower mold 213. One end of each buffer spring 217 is fixedly installed on the inner wall of the hot press equipment 1. Under the action of its own elastic potential energy, the buffer springs 217 can buffer and protect the upper mold 212 and the lower mold 213 during mold opening and closing.

[0025] The outer surface of the protective bar 225 is bonded with a rubber protective layer, and the side of the rubber protective layer facing the operator has a continuous wavy anti-slip texture, which not only enhances the friction when in contact with the human body to ensure a reliable peeling effect, but also reduces the impact force when in contact through the flexibility of silicone rubber.

[0026] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0027] During operation, the device is in its initial position, with the piston rod of cylinder 211 in a retracted state. The operator places the pre-laid carbon fiber prepreg blank into the cavity of the lower mold 213. At this time, the protective stop rod 225 deflects to the leftmost end under the action of the driving rod 223 and the driven rod 224, clearing space for loading, unloading, and operation. The piston rod of the starting cylinder 211 extends downward, driving the upper mold 212 to move downward along the guide rod 218. As the upper mold 212 moves downward, it pushes the rotating block 214 to rotate through the transmission rods 215 on both sides. The rotation of the rotating block 214 simultaneously drives the transmission rod 215 connected to the lower mold 213, thereby pulling the lower mold 213 to overcome the force of its bottom buffer spring 217 and move upward synchronously, ensuring that the synchronous opposite movement of the upper mold 212 and the lower mold 213 is uniform. When pressure is applied evenly, the buffer spring 217 is stretched. At the same time, the elastic tension of the buffer spring 217 buffers the closing action. Simultaneously, when the upper mold 212 moves downward, the mounting plate 222 fixed on it moves downward in sync. The mounting plate 222 drives the active rod 223 hinged to it to move downward. The active rod 223 pushes the driven rod 224, forcing the driven rod 224 to rotate around its hinge point with the fixed frame 221. The rotation of the driven rod 224 drives the protective stop rod 225 to swing from the leftmost end of the initial safe position to the front of the mold closing area. Just at the moment when the upper mold 212 and the lower mold 213 close and contact and begin to apply pressure, the protective stop rod 225 swings to the rightmost end of the maximum coverage position, effectively isolating the operator's arm from accidentally entering the dangerous mold closing area with high temperature and high pressure during the mold closing process. After the mold is closed, the external heating system heats the mold, causing the carbon fiber prepreg to solidify under the set temperature and pressure. After solidification, the piston rod of cylinder 211 retracts, the upper mold 212 moves upward, and under the reverse action of transmission rod 215 and rotating block 214, the lower mold 213 synchronously returns downward to the initial position. The buffer spring 217 releases energy to assist in a smoother mold opening action. At the same time, when it is close to the end, the buffer spring 217 is compressed to buffer it. Meanwhile, the protection stop rod 225 moves in the opposite direction under the transmission of driven rod 224 and driving rod 223, resetting to the initial state for the next use.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] 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 marine carbon fiber propeller blade forming device, comprising a hot pressing device (1), characterized in that: The hot pressing equipment (1) is provided with a forming mechanism (2) on one side for hot pressing and forming carbon fiber propeller blades. The forming mechanism (2) includes: The pressing assembly (21) includes an upper mold (212) on the upper part of one side of the hot pressing device (1), a lower mold (213) on the lower part of one side of the hot pressing device (1), and four evenly distributed guide rods (218) on one side of the hot pressing device (1). The upper mold (212) and the lower mold (213) are both slidably locked on the outer surface of the guide rods (218). Two symmetrically distributed rotating blocks (214) are rotatably installed in the middle of one side of the hot pressing device (1). Both ends of the two rotating blocks (214) are rotatably installed with transmission rods (215). One end of the four transmission rods (215) is respectively installed in the middle of the two sides of the upper mold (212) and the lower mold (213). A driving assembly is provided in the middle of the top of the upper mold (212). A protective component (22) is provided on one side of the upper mold (212) to isolate the hazardous area.

2. The marine carbon fiber propeller blade forming device according to claim 1, characterized in that: The protective component (22) includes a fixed frame (221) fixedly installed on one side of the upper part of the hot press (1), an mounting plate (222) fixedly installed on one side of the upper mold (212), an active rod (223) movably installed on one side of the mounting plate (222), a driven rod (224) movably installed on the other end of the active rod (223), and the other end of the driven rod (224) movably installed on the lower part of the fixed frame (221). A protective stop bar (225) is provided on one side of the lower part of the fixed frame (221), and one upper end of the protective stop bar (225) is fixedly installed on the middle of one end of the driven rod (224).

3. The marine carbon fiber propeller blade forming device according to claim 1, characterized in that: The drive assembly includes a cylinder (211) fixedly installed on one side of the top of the hot press (1), and the drive end of the cylinder (211) is fixedly installed at the middle of the top of the upper mold (212).

4. The marine carbon fiber propeller blade forming device according to claim 1, characterized in that: Linear bearings (216) are fixedly installed at the four corners of the upper mold (212) and the lower mold (213), and four guide rods (218) are slidably locked in the middle of the linear bearings (216).

5. The marine carbon fiber propeller blade forming device according to claim 1, characterized in that: Four evenly distributed buffer springs (217) are fixedly installed on the opposite ends of the upper mold (212) and the lower mold (213), and one end of each buffer spring (217) is fixedly installed on the inner wall of the hot press (1).

6. The marine carbon fiber propeller blade forming device according to claim 2, characterized in that: The outer surface of the protective stop bar (225) is bonded with a rubber protective layer, and the side of the rubber protective layer facing the operator has a continuous wavy anti-slip texture.

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