Carbon fiber airplane propeller blade forming mold

Abstract

The utility model belongs to the field of injection molds, and particularly relates to a carbon fiber airplane propeller blade forming mold which comprises an upper mold, a lower mold, a feeding nozzle, a cutting device and a stepped workbench, the upper mold is provided with an upper cavity, the lower mold is provided with a lower cavity, the upper cavity and the lower cavity are spliced into a complete forming cavity, and the feeding nozzle is arranged on the stepped workbench. A raw material injection hole communicated with the upper cavity is formed in the upper die, the stepped chamber workbench comprises a high table top and a low table top, the cutting device comprises a blade capable of horizontally moving, the raw material injection hole is formed in the tangent point of the upper cavity and the outer wall of the upper die, the bottom of the feeding nozzle is communicated with the raw material injection hole, and the lower end of the feeding nozzle is communicated with the lower die. The two opposite sides of the bottom of the feeding nozzle are each provided with a channel for a blade of the cutting device to pass through. According to the utility model, redundant parts formed during injection molding of a product do not need to be manually cut off by virtue of an extra tool after demolding, so that time and labor are saved, and the efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of injection molds, and in particular relates to a carbon fiber aircraft propeller blade forming mold. Background Art

[0002] Carbon fiber is a high-performance composite material with the advantages of high strength, light weight, and fatigue resistance. Applying carbon fiber to the manufacture of propeller blades can effectively improve the flight performance of drones. First, the high strength characteristics of carbon fiber enable propeller blades to withstand greater loads, improving the load capacity and stability of drones. Secondly, the lightweight characteristics of carbon fiber help reduce the overall weight of drones, reduce energy consumption during flight, and improve flight efficiency. In addition, the fatigue resistance of carbon fiber ensures that the propeller blades can maintain stable performance under long-term use, extending the service life of the drone.

[0003] When manufacturing carbon fiber propeller blades, liquid injection molding materials need to be injected into the matched upper and lower mold assemblies through a feed nozzle. However, due to technical reasons, the amount of injection molding materials injected is often greater than the actual amount required, causing the injection molding materials to overflow into the feed nozzle. If heated and cooled, the overflowed part will also solidify and connect to the required part. Therefore, after heating and curing, it is necessary to demold the product, and then use additional tools to manually cut off the excess part on the product blank before the product can be polished. This is very inefficient. Utility Model Content

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the problem that the current carbon fiber propeller blade injection mold often overflows the mold cavity when injecting the injection molding material, resulting in the need to use additional tools to cut off the overflowed part after demolding, which is very inefficient.

[0005] In order to solve the above technical problems, the utility model provides a carbon fiber aircraft propeller blade forming mold, including an upper mold, a lower mold, a feed nozzle, a cutting device and a stepped workbench, the upper mold is provided with an upper cavity, the lower mold is provided with a lower cavity, the upper mold and the lower mold can be used together, the upper cavity and the lower cavity are combined into a complete forming cavity, the upper mold is provided with a raw material injection hole connected to the upper cavity,

[0006] The stepped workbench includes a high table top and a low table top, the low table top is used to place the upper and lower mold combinations, and the high table top is used to fix the cutting device, the cutting device includes a horizontally movable blade, the raw material injection hole is arranged at the intersection of the upper chamber and the outer wall of the upper mold, the bottom of the feed nozzle is connected to the raw material injection hole, and the opposite sides of the bottom of the feed nozzle are provided with channels for the cutting device blade to pass through.

[0007] Preferably, the cavity diameter of the feed nozzle gradually decreases from top to bottom.

[0008] Preferably, the feed nozzle and the upper mold are detachably connected.

[0009] Preferably, the cutting device also includes a pushing cylinder, a handle and a support frame, one end of the blade is a blade, the blade faces the channel, the end of the blade facing away from the blade is fixed to one end of the handle, the other end of the handle is fixed to the telescopic rod of the pushing cylinder, the support frame is arranged below the handle, and the bottom of the handle is in contact with the support frame.

[0010] The technical solution of the utility model has the following beneficial effects:

[0011] The utility model provides a raw material injection hole on the mold, the bottom of the feed nozzle is connected with the raw material injection hole, the raw material injection hole is connected with the molding chamber of the mold, a channel is provided at the bottom of two opposite sides of the feed nozzle, and a cutting device is provided next to the mold, the cutting device includes a horizontally movable blade, after natural cooling for a period of time, the blade can enter the feed nozzle through the channel, and can extend through another channel, so as to cut off the overflowed part in the feed nozzle, and then heat and cure, and can be directly polished after demoulding, without the need for manual cutting with the help of additional tools, saving time and labor, and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 This is the front view of the utility model;

[0014] Figure 2 It is a left view of the utility model;

[0015] Figure 3 It is an exploded schematic diagram of the feed nozzle and the upper and lower mold combination of the utility model.

[0016] Explanation of the accompanying drawings: 1. Upper mold; 11. Upper chamber; 12. Raw material injection hole; 13. Threaded blind hole; 2. Lower mold; 21. Lower chamber; 3. Feed nozzle; 31. Cavity; 32. Flange connecting plate; 321. Connecting hole; 33. Channel; 4. Cutting device; 41. Push cylinder; 42. Tool handle; 43. Support frame; 44. Blade; 5. Stepped workbench; 51. High table; 52. Low table; 6. Molding chamber. DETAILED DESCRIPTION

[0017] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0021] The utility model provides a carbon fiber aircraft propeller blade forming mold, comprising an upper mold 1, a lower mold 2, a feed nozzle 3, a transverse cutting device 4 and a stepped workbench 5, wherein the upper mold 1 is provided with an upper chamber 11, the lower mold 2 is provided with a lower chamber 21, the upper mold 1 and the lower mold 2 can be used together, the upper chamber 11 and the lower chamber 21 are assembled into a complete forming chamber 6, the upper mold 1 is provided with a raw material injection hole 12 communicated with the upper chamber 11, the stepped workbench comprises a high table 51 and a low table 52, the low table 52 is used for placing the upper and lower mold combination, the high table 51 is used for fixing the cutting device 4, the cutting device 4 comprises a blade 44 which can be moved horizontally, the raw material injection hole 12 is arranged at the tangent point between the upper chamber 11 and the outer wall of the upper mold 1, the bottom of the feed nozzle 3 is connected with the raw material injection hole 12, and opposite sides of the bottom of the feed nozzle 3 are provided with channels 33 for the blade 44 of the cutting device 4 to pass through.

[0022] In the initial state, the blade 44 of the transverse cutting device 4 is spaced apart from the feed nozzle 3. When injection molding is required to produce propeller blades, the upper and lower mold assemblies are first placed in a mating state on a low table 52, and then the raw materials are sequentially passed through the feed nozzle 3 and the raw material injection hole 12 into the molding chamber 6, and then naturally cooled for a while. After the raw materials are slightly solidified, the cutting device 4 is started, the blade 44 is moved toward the feed nozzle 3, and enters the interior thereof through one of the channels 33, and then extends out through another channel 33, and the raw materials overflowing from the raw material injection hole 12 and located within the feed nozzle 3 are cut off, so as to ensure that the shape of the product meets the preset requirements. After the overflow portion is cut off, the blade 44 is sent back by the push cylinder 41. Finally, the product blank connected to the interior of the upper and lower mold assemblies is placed in an oven for heating and curing.

[0023] In order to prevent the raw material from getting stuck when passing through the feed nozzle 3 , the diameter of the cavity 31 of the feed nozzle 3 is gradually reduced from the top to the bottom.

[0024] The feed nozzle 3 is detachably connected to the upper mold 1. First, it is more convenient to pour out the cut overflow part from the feed nozzle 3. Second, it is more convenient to remove the raw materials attached to the inner wall of the feed nozzle 3. A flange connection plate 32 is provided at the outer edge of the bottom end of the feed nozzle 3. The flange connection plate 32 is provided with a plurality of annularly arranged connection holes 321. The top surface of the upper mold 1 is provided with a plurality of threaded blind holes 13. The connection holes 321 and the threaded blind holes 13 are fixed by bolts.

[0025] The cutting device 4 also includes a push cylinder 41, a handle 42 and a support frame 43. One end of the blade 44 is a blade, the blade faces the channel 33, the end of the blade 44 away from the blade is fixed to one end of the handle 42, the other end of the handle 42 is fixed to the telescopic rod of the push cylinder 41, and the support frame 43 is arranged below the handle 42, and the bottom of the handle 42 is in conflict with the support frame 43. When the blade 44 is required to cut the overflow part, the push cylinder 41 will be started, and the telescopic rod of the push cylinder 41 will extend to drive the blade 44 to move toward the feed nozzle 3, and finally enter one of the channels 33 of the feed nozzle 3 and extend out of the other side channel 33 of the feed nozzle 3. When the cutting is completed, the telescopic rod of the push cylinder 41 retracts and sends the blade 44 back to the original position. In the process of the movement of the blade 44, since the handle 42 and the support frame 43 conflict with each other, it provides guidance for the movement of the blade 44, ensuring that the blade 44 can finally align with the channel 33 and enter.

[0026] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A carbon fiber aircraft propeller blade forming mold, comprising an upper mold (1) and a lower mold (2), wherein the upper mold (1) is provided with an upper chamber (11), and the lower mold (2) is provided with a lower chamber (21), wherein the upper mold (1) and the lower mold (2) can be used together, and the upper chamber (11) and the lower chamber (21) are combined into a complete forming chamber (6), and the upper mold (1) is provided with a raw material injection hole (12) connected to the upper chamber (11), characterized in that: The invention also comprises a feed nozzle (3), a cutting device (4) and a stepped workbench (5), wherein the stepped workbench comprises a high table (51) and a low table (52), wherein the low table (52) is used to place the upper and lower mold assemblies, and the high table (51) is used to fix the cutting device (4), wherein the cutting device (4) comprises a blade that can be moved horizontally, and the raw material injection hole (12) is arranged at the intersection of the upper chamber (11) and the outer wall of the upper mold (1), the bottom of the feed nozzle (3) is connected to the raw material injection hole (12), and the opposite sides of the bottom of the feed nozzle (3) are provided with channels for the blade of the cutting device (4) to pass through.

2. A carbon fiber aircraft propeller blade forming mold according to claim 1, characterized in that: The diameter of the cavity (31) of the feed nozzle (3) gradually decreases from top to bottom.

3. The carbon fiber aircraft propeller blade forming mold according to claim 1, characterized in that: The feed nozzle (3) is detachably connected to the upper mold (1).

4. The carbon fiber aircraft propeller blade forming mold according to claim 1, characterized in that: The cutting device (4) further comprises a pushing cylinder (41), a knife handle (42) and a support frame (43); one end of the blade is a blade, the blade faces the channel, the end of the blade facing away from the blade is fixed to one end of the knife handle (42), the other end of the knife handle (42) is fixed to the telescopic rod of the pushing cylinder (41), and the support frame (43) is arranged below the knife handle (42), and the bottom of the knife handle (42) is in contact with the support frame (43).

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