Injection molding device for unmanned aerial vehicle paddle machining

Abstract

The invention relates to the field of unmanned aerial vehicle paddle processing, and discloses an injection molding device for unmanned aerial vehicle paddle processing, the injection molding device comprises a mold component and an injection component, the injection component comprises a melting tank and a thick pipe, a heating element is arranged outside the melting tank, a blade is arranged in the melting tank, and the upper end of the blade extends out of the melting tank and is in power connection with a second motor; the thick pipe is horizontally arranged and located below the melting tank, a receiving nozzle is arranged at the highest point of the outer circle face of the thick pipe and connected with the bottom of the melting tank, a piston is arranged in the thick pipe in a sleeved mode, the piston is driven by a hydraulic cylinder to move in the thick pipe, at the beginning, the piston blocks the connecting position of the receiving nozzle and the thick pipe, and an output nozzle is arranged at the output end of the thick pipe. A thin pipe is arranged on the outer circle face of the melting tank, an electric heating wire is wound on the outer circle face of the thin pipe, the injection component further comprises an injection nozzle, and the output nozzle, the thin pipe and the injection nozzle are connected through a connecting assembly.

Description

Technical Field

[0001] The present invention relates to the field of unmanned aerial vehicle (UAV) processing, in particular to the field of unmanned aerial vehicle (UAV) blade processing, and in particular to an injection molding device for unmanned aerial vehicle (UAV) blade processing. Background Art

[0002] With the large-scale development of drones and the continuous development of their application fields, in addition to flight control systems and intelligent software, the materials used in drone hardware are also constantly changing. Composite materials with better performance are the cornerstone for drones to achieve industrial explosion and expansion of their application fields. Among them, drone propellers are an important component with high technical content, complex manufacturing process, and demanding material performance. Based on this, the selection of propeller materials has also become a focus of attention for drone manufacturers. For the blades of larger industrial drones such as agricultural drones, it is necessary to reduce the weight of the drone body while maintaining the excellent performance of the body material. At this time, conventional materials can no longer meet the requirements, and carbon fiber special nylon composite materials are gradually entering the market. Among them, high-temperature nylon is commonly used in drone blades. PA6T (poly(adipamide terephthalate)) has the advantages of high mechanical strength, strong rigidity, low water absorption, fast crystallization speed, and high heat deformation temperature. However, due to the melting point of high-temperature nylon reaching more than 320 degrees, the crystallization molding speed is too fast, and the processing difficulty of manufacturing large blades is relatively high. It is easy to cause local solidification molding during the injection process, resulting in the quality of the processed blades being affected.

[0003] Based on the above, the present invention proposes an injection molding device for processing UAV blades. Summary of the invention

[0004] In order to solve the problems mentioned in the above background, the present invention provides an injection molding device for processing UAV blades.

[0005] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows.

[0006] An injection molding device for processing a drone blade comprises a mold component and an injection component, wherein the injection component comprises a melting tank and a thick tube, a heating element is arranged outside the melting tank, a blade is arranged inside the melting tank, an upper end of the blade extends out of the melting tank and forms a power connection with a second motor arranged on the outer surface of the melting tank; The thick pipe is arranged horizontally and is located below the melting tank. A receiving nozzle is arranged at the highest point of the outer circumference of the thick pipe. The receiving nozzle is connected to the bottom of the melting tank. A piston is sleeved inside the thick pipe. The piston is driven by the hydraulic cylinder to move inside the thick pipe. Initially, the piston blocks the connection between the receiving nozzle and the thick pipe. An output nozzle is arranged at the output end of the thick tube, a thin tube is arranged on the outer circumference of the melting tank, an electric heating wire is wound around the outer circumference of the thin tube, and the injection component also includes an injection nozzle. The output nozzle, the thin tube and the injection nozzle are connected by a connecting assembly.

[0007] As a further improvement and optimization of the present invention, the connecting component is configured to switch between an injection state and a connecting state. The connecting component in the injection state is used to achieve communication between the injection nozzle and the output nozzle, and the connecting component in the connecting state is used to achieve communication between the output nozzle and the capillary.

[0008] As a further improvement and optimization of the present invention, a feeding pipe is arranged on the outer cylindrical surface of the melting tank, the upper end of the feeding pipe is connected to a storage hopper and a solenoid valve is arranged at the connection.

[0009] As a further improvement and optimization of the present invention, the blade is arranged in a spiral shape and a plurality of holes are arranged on the outer surface of the blade along the extension direction.

[0010] As a further improvement and optimization of the present invention, the connection assembly includes a connection pipe, the outer surface of the connection pipe is provided with a side nozzle 1 connected to the output nozzle and a side nozzle 2 connected to the capillary tube, and the injection nozzle is arranged at the lower end of the connection pipe; An inner conduit arranged vertically is arranged in the connecting pipe, an upper connecting hole is arranged on the outer circumferential surface of the inner conduit, the second side nozzle is connected to the upper connecting hole, an inner sliding shaft is slidably arranged in the inner conduit, the inner sliding shaft is in the shape of a hollow shaft, the lower end of the inner sliding shaft extends out of the inner conduit and is provided with a conical sealing head, and a lower connecting hole connected to the inner sliding shaft is arranged on the conical sealing head; The outer circumferential surface of the inner sliding shaft is provided with a side hole, and during the movement of the inner sliding shaft in the inner guide tube, the side hole can be communicated with the upper connecting hole.

[0011] As a further improvement and optimization of the present invention, the upper end of the inner cavity of the injection nozzle is arranged to be a conical surface shape with a diameter increasing from bottom to top, the lower end of the inner cavity of the inner tube is arranged to be a conical surface shape with a diameter decreasing from bottom to top, the outer diameter of the conical sealing head first increases and then decreases from bottom to top, when the inner sliding shaft moves, the inner sliding shaft moves with the conical sealing head, the conical sealing head can be fitted with the lower end of the inner cavity of the inner tube or the upper end of the inner cavity of the injection nozzle, and the lower connecting hole is arranged on the part where the diameter of the outer diameter of the conical sealing head decreases from bottom to top.

[0012] As a further improvement and optimization of the present invention, when the conical sealing head is in contact with the upper end of the inner cavity of the injection nozzle, the conical sealing head blocks the injection nozzle and the side hole is connected to the upper connecting hole; when the conical sealing head is in contact with the lower end of the inner cavity of the inner catheter, the lower connecting hole is blocked by the lower end of the inner cavity of the inner catheter.

[0013] As a further improvement and optimization of the present invention, the linear module used to drive the inner sliding shaft to move includes a vertically arranged screw and a third motor that drives the screw to rotate. The lower end of the screw extends into the inner guide tube, and the screw and the inner sliding shaft form a threaded connection.

[0014] As a further improvement and optimization of the present invention, the mold component includes a vertically arranged rotating shaft and a first motor driving the rotating shaft to rotate, a mold unit is installed on the outer cylindrical surface of the rotating shaft, a connecting arm is arranged on the mold frame of the mold unit, and the end of the connecting arm forms a sliding connection with the rotating shaft in the vertical direction; When the mold unit rotates along with the rotating shaft, the molten plastic entry end of the mold unit can be located directly below the injection nozzle, and a telescopic rod is provided below the injection nozzle, through which the mold unit can be lifted so that the injection nozzle can be inserted into the molten plastic entry end of the mold unit.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This solution uses high-temperature nylon as raw material to realize the injection molding of medium and large UAV blades. During the injection molding process: On the one hand, the diameter of the thick tube used for molten plastic injection is large, so the injection of molten plastic into the mold unit can be completed quickly, and the injection time is short. Therefore, after the injection is completed, the molten plastic in the mold unit will begin to gradually solidify and form, so as to ensure the quality of the UAV blades obtained by injection molding; On the one hand, after each injection of molten plastic into the mold unit, the first motor drives the rotating shaft to rotate so that the next mold unit is located at the injection position, thereby realizing continuous injection molding. The advantage is that the interval between two adjacent injections can be reduced as much as possible, and the residence time of the molten plastic remaining in the injection end of the injection component can be reduced, so that it can be timely involved in the next injection molding; On the one hand, after completing one injection, the hydraulic cylinder can drive the piston to reciprocate in the thick tube while keeping the connection between the receiving nozzle and the thick tube blocked. The reciprocating motion can draw the molten plastic in the thin tube and the melting tank into the connecting pipe and the thick tube, and then push the molten plastic back into the melting tank through the thin tube. The advantage of this is that the thin tube is thinner, and the electric heating wire wrapped around the outside can ensure that the molten plastic in the thin tube does not solidify, but the thick tube is thicker. Even if the electric heating wire is wrapped around the outside of the thick tube, the part of the molten plastic close to the axis of the thick tube is prone to solidification. Therefore, this solution solves this problem by a one-draw-one-push method. Specifically, the molten plastic in the thin tube and the melting tank is drawn into the connecting pipe and the thick tube, and then pushed back into the melting tank. In this process: a. Heat exchange will occur between the extracted part of the molten plastic and the residual molten plastic, which plays a role in heat preservation; b. The pulling and pushing action can cause the molten plastic to be stirred, and the heat exchange effect of the molten plastic is better, and the residual molten plastic and the molten plastic extracted into the connecting pipe and the thick pipe have the opportunity to return to the melting tank, therefore, it can be ensured that the molten plastic in the connecting pipe and the thick pipe does not solidify; c. The molten plastic has an initial velocity when returning to the melting tank, therefore, the molten plastic returned to the melting tank can improve the stirring effect on the molten plastic in the melting tank, and the next molten plastic to be extracted comes from the vicinity of the melting tank wall, and the temperature near the melting tank wall is the highest. This part of the molten plastic is extracted into the connecting pipe and the thick pipe, which can effectively improve the heating and heat preservation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of an existing UAV blade; Figure 2 It is a structural schematic diagram of the present invention; Figure 3 is a structural schematic diagram of a mold component; Figure 4 It is a structural schematic diagram of the injection component; Figure 5 is a cross-sectional view of an injection component; Figure 6 is a cross-sectional view of the connection component in the injection state; Figure 7 is a cross-sectional view of the connection component in a connected state; Figure 8 Schematic diagram of a conical sealing head.

[0017] The reference numerals in the accompanying drawings are: 100, mold component; 101, rotating shaft; 102, first motor; 103, telescopic rod; 104, mold unit; 200, injection component; 201, second motor; 202, feeding pipe; 203, solenoid valve; 204, storage hopper; 205, hydraulic cylinder; 206, melting tank; 207, heating element; 208, blade; 209, thick tube; 210, piston; 211, output nozzle; 212, thin tube; 213, injection nozzle; 214, connecting assembly; 2141, connecting pipe; 2142, side nozzle one; 2143, side nozzle two; 2144, inner guide tube; 2145, inner sliding shaft; 2146, screw rod; 2147, third motor; 2148, conical sealing head; 2149, lower connecting hole. DETAILED DESCRIPTION

[0018] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0019] Reference Figure 2-Figure 8 , an injection molding device for processing drone blades, including a mold component 100 and an injection component 200.

[0020] Mold member 100: Reference Figure 3 The mold component 100 includes a vertically arranged rotating shaft 101 and a first motor 102 that drives the rotating shaft 101 to rotate. A mold unit 104 is installed on the outer cylindrical surface of the rotating shaft 101. Furthermore, the mold unit 104 matches the shape of the drone blade, which is achievable with the existing technology and is not described in detail. A connecting arm is provided on the mold frame of the mold unit 104, and a sliding connection is formed between the end of the connecting arm and the rotating shaft 101 in the vertical direction. In addition, when the mold unit 104 is located directly below the injection end of the injection component 200, the position of this mold unit 104 is named as the injection position. A telescopic rod 103 is also provided at the injection position, and the existing electric telescopic rod technology or the existing hydraulic telescopic rod technology can be used. The mold unit 104 at the injection position can be lifted up by the telescopic rod 103, so that the injection end of the injection component 200 is inserted into the molten plastic entry end of this mold unit 104. Subsequently, the injection component 200 injects the molten plastic into this mold unit 104. After the injection is completed, the telescopic rod 103 is reset, and then the rotating shaft 101 is driven to rotate by the first motor 102, so that the next mold unit 104 is located at the injection position and the above action is repeated, so that continuous injection molding is realized. The advantage is that the retention time of the molten plastic remaining in the injection end of the injection component 200 during the previous injection process can be reduced as much as possible, so that it can participate in the next injection molding in time, so that the temperature of these molten plastics can be reduced. It should be noted that high-temperature nylon is a heat-resistant polyamide, which is a kind of plastic. Therefore, this scheme refers to high-temperature nylon with plastic. In addition, in the process of rotating the rotating shaft 101 to make the next mold unit 104 located at the injection position, in order to avoid the centrifugal force that affects the injection molding due to excessive rotation speed, the rotation speed of the rotating shaft 101 should be relatively slow, so time is needed. During this period of time, it is necessary to keep the molten plastic at the injection end of the injection component 200 warm to prevent it from solidifying and molding. The specific insulation measures are elaborated in detail later.

[0021] Injection component 200: Reference Figure 4-Figure 8The injection component 200 includes a melting tank 206 and a thick tube 209. A heating element 207 is arranged outside the melting tank 206. The existing electric heating technology can be used and will not be described in detail. A feeding pipe 202 is arranged on the outer cylindrical surface of the melting tank 206. The upper end of the feeding pipe 202 is connected to a storage hopper 204 and a solenoid valve 203 is arranged at the connection. A blade 208 is arranged in the melting tank 206. The upper end of the blade 208 extends out of the melting tank 206 and forms a power connection with the second motor 201. The second motor 201 is provided It is arranged on the outer surface of the melting tank 206. Furthermore, in this scheme, the blade 208 is arranged in a spiral shape, similar to a push screw, and a plurality of holes are arranged on the outer surface along the extension direction. The significance of this is that the spiral-shaped blade 208 not only has a stirring effect, but also has a turning effect. Therefore, the stirring effect on the plastic in the melting tank 206 is better. The reason for setting the holes is that when the spiral-shaped blade 208 rotates, it will pull the plastic to move in one direction. Therefore, it is necessary to set the holes to overcome this problem.

[0022] The solenoid valve 203 is opened, and the plastic in the storage hopper 204 enters the melting tank 206 through the feeding pipe 202. After the feeding is completed, the solenoid valve 203 is closed, the heating element 207 is turned on, and the second motor 201 is turned on, so that the plastic in the melting tank 206 is heated and melted into a molten state.

[0023] The thick tube 209 is arranged horizontally and is located below the melting tank 206. A receiving nozzle is provided at the highest point of the outer circumferential surface of the thick tube 209, and the receiving nozzle is connected to the bottom of the melting tank 206. A piston 210 is sleeved in the thick tube 209, and the piston 210 is driven by the hydraulic cylinder 205 to move in the thick tube 209. Furthermore, initially, the piston 210 blocks the connection between the receiving nozzle and the thick tube 209 until the plastic is melted. The piston 210 retreats, and the molten plastic falls into the thick tube 209 through the receiving nozzle. After a preset time, when the thick tube 209 is filled with molten plastic, the piston 210 is driven by the hydraulic cylinder 205 to move, so that the molten plastic in the thick tube 209 can be pushed out, and during the pushing process, the piston 210 keeps the connection between the receiving nozzle and the thick tube 209 blocked.

[0024] The output end of the thick tube 209 is provided with an output nozzle 211, the outer circumferential surface of the melting tank 206 is provided with a thin tube 212, and the injection component 200 also includes an injection nozzle 213. When the mold unit 104 at the injection position moves up, the injection nozzle 213 can be inserted into the molten plastic entry end of the mold unit 104.

[0025] The outer circumferential surface of the thin tube 212 is wrapped with insulation structures such as electric heating wires. Since the thin tube 212 is thinner, the molten plastic in the thin tube 212 can be heated and insulated and will not solidify. However, since the thick tube 209 is thicker, even if the same insulation structure is provided, the molten plastic near the inner wall of the thick tube 209 can be effectively insulated, but the insulation effect of the molten plastic near the axis of the thick tube 209 is poor and it is easy to solidify.

[0026] The output nozzle 211, the thin tube 212 and the injection nozzle 213 are connected by a connecting component 214. The connecting component 214 is set to switch between an injection state and a connection state. When in the injection state, the connection component 214 can realize the connection between the injection nozzle 213 and the output nozzle 211. The molten plastic in the thick tube 209 is pushed by the piston 210 and can be injected into the mold unit 104 through the output nozzle 211, the connecting component 214 and the injection nozzle 213. When in the connection state, the connection component 214 can realize the connection between the output nozzle 211 and the thin tube 212. At this time, the injection has been completed. The hydraulic cylinder 205 can drive the piston 210 to reciprocate in the thick tube 209 while keeping the connection between the receiving nozzle and the thick tube 209 blocked.

[0027] Reference Figure 6-Figure 8 The connecting component 214 includes a connecting pipe 2141, and two side nozzles are arranged on the outer surface of the connecting pipe 2141: side nozzle 1 2142 and side nozzle 2 2143, wherein the injection nozzle 213 is arranged at the lower end of the connecting pipe 2141, the side nozzle 1 2142 is connected to the output nozzle 211, and the side nozzle 2 2143 is connected to the capillary 212.

[0028] An inner conduit 2144 arranged vertically is provided in the connecting pipe 2141, an upper connecting hole is provided on the outer circumferential surface of the inner conduit 2144, and the second side nozzle 2143 is connected to the upper connecting hole.

[0029] An inner sliding shaft 2145 is slidably arranged inside the inner conduit 2144. The inner sliding shaft 2145 is in the shape of a hollow shaft, the lower end of which extends out of the inner conduit 2144 and is provided with a conical sealing head 2148. The conical sealing head 2148 is provided with a lower connecting hole 2149 connected to the inner sliding shaft 2145. A plurality of lower connecting holes 2149 are arranged in an array along the circumferential direction of the inner sliding shaft 2145.

[0030] A side hole is formed on the outer circumferential surface of the inner sliding shaft 2145 . When the inner sliding shaft 2145 moves in the inner guide tube 2144 , the side hole can be connected with the upper connecting hole.

[0031] The upper end of the inner cavity of the injection nozzle 213 is set to a conical surface shape with a diameter increasing from bottom to top, and the lower end of the inner cavity of the inner guide tube 2144 is set to a conical surface shape with a diameter decreasing from bottom to top. The outer diameter of the conical sealing head 2148 first increases and then decreases from bottom to top. When the inner sliding shaft 2145 is driven to move by the linear module, the inner sliding shaft 2145 moves with the conical sealing head 2148. When moving upward, the conical sealing head 2148 can fit with the lower end of the inner guide tube 2144. The lower connecting hole 2149 is set on the part of the outer surface of the conical sealing head 2148 that decreases from bottom to top. Therefore, the lower connecting hole 2149 will be blocked. At the same time, the side hole is not connected to the upper connecting hole. When moving downward, the conical sealing head 2148 can fit with the upper end of the injection nozzle 213 to block the injection nozzle 213. At the same time, the side hole is connected to the upper connecting hole.

[0032] Furthermore, the linear module includes a vertically arranged screw rod 2146 and a third motor 2147 that drives the screw rod 2146 to rotate. The lower end of the screw rod 2146 extends into the inner guide tube 2144. The screw rod 2146 and the inner sliding shaft 2145 are threadedly connected. When the screw rod 2146 is driven to rotate by the third motor 2147, the inner sliding shaft 2145 moves in the vertical direction.

[0033] Working principle of the present invention: Step 1: Open the solenoid valve 203, and the plastic in the storage hopper 204 enters the melting tank 206 through the feeding pipe 202. After the feeding is completed, the solenoid valve 203 is closed, the heating element 207 is turned on, and the second motor 201 is turned on, so that the plastic in the melting tank 206 is heated and melted into a molten state; The telescopic rod 103 lifts up the mold unit 104 at the injection molding position, so that the injection nozzle 213 is inserted into the molten plastic entry end of the mold unit 104 at the injection molding position; Step 2: The hydraulic cylinder 205 pulls the piston 210 backward, cancels the blockage of the connection between the receiving nozzle and the thick tube 209, and the molten plastic falls into the thick tube 209 through the receiving nozzle. After a preset time, the thick tube 209 is filled with molten plastic, and the hydraulic cylinder 205 drives the piston 210 forward to push the molten plastic in the thick tube 209 out. During the pushing process, the piston 210 keeps blocking the connection between the receiving nozzle and the thick tube 209. The connection assembly 214 is in the injection state, and the pushed out molten plastic is injected into the mold unit 104 through the output nozzle 211, the side nozzle 2142, the connecting pipe 2141, and the injection nozzle 213. Since the diameter of the thick tube 209 is large, the power of the hydraulic cylinder 205 is large enough to quickly push the molten plastic in the thick tube 209 into the mold unit 104; Step 3: After the injection is completed, the connection assembly 214 is switched to the connection state, and the piston 210 can be driven by the hydraulic cylinder 205 to reciprocate in the thick tube 209 while keeping the connection between the receiving nozzle and the thick tube 209 blocked. The reciprocating motion can suck the molten plastic in the capillary tube 212 and the melting tank 206 into the connecting pipe 2141 and the thick tube 209, and then push the molten plastic back into the melting tank 206 through the capillary tube 212. The advantages of this are: The capillary 212 is relatively thin, and an electric heating wire is wrapped around the outside to ensure that the molten plastic in the capillary 212 does not solidify. However, since the solidification speed of high-temperature nylon is relatively fast and the drone blades are relatively large, the molten plastic needs to be quickly injected into the mold cavity of the mold unit 104. Therefore, the thick tube 209 is relatively thick. Before the next injection, the molten plastic remaining in the thick tube 209 and the connecting pipe 2141 is prone to solidification. This solution can solve this problem. Specifically, the capillary 212 and the molten plastic in the melting tank 206 are drawn into the connecting pipe 2141 and the thick tube 209, and then pushed back into the melting tank 206. During this process, on the one hand, heat exchange will occur between the extracted part of the molten plastic and the remaining molten plastic, which plays a role in heat preservation. On the other hand, the action of drawing and pushing can cause the molten plastic to be stirred, and the heat of the molten plastic The exchange effect is better, and the residual molten plastic and the molten plastic drawn into the connecting pipe 2141 and the thick pipe 209 have the opportunity to return to the melting tank 206, so it can be ensured that the molten plastic in the connecting pipe 2141 and the thick pipe 209 does not solidify. On the one hand, the molten plastic has an initial velocity when returning to the melting tank 206. Therefore, the molten plastic returned to the melting tank 206 can improve the stirring effect of the molten plastic in the melting tank 206, and the molten plastic drawn next comes from the vicinity of the wall of the melting tank 206, and the temperature near the wall of the melting tank 206 is the highest. This part of the molten plastic is drawn into the connecting pipe 2141 and the thick pipe 209, which can effectively improve the insulation effect. In summary, this solution can effectively prevent the molten plastic from solidifying during the injection process and prevent the residual molten plastic from solidifying. Step 4: At the same time as step 3, the first motor 102 drives the rotating shaft 101 to rotate, so that the next mold unit 104 is located at the injection position; Step 5: Repeat steps 1 to 4.

[0034] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An injection molding device for processing drone blades, comprising a mold component (100) and an injection component (200), characterized in that: The injection component (200) comprises a melting tank (206) and a thick tube (209); a heating element (207) is arranged outside the melting tank (206); a blade (208) is arranged inside the melting tank (206); the upper end of the blade (208) extends out of the melting tank (206) and forms a power connection with a second motor (201) arranged on the outer surface of the melting tank (206); The thick tube (209) is arranged horizontally and is located below the melting tank (206). A receiving nozzle is provided at the highest point of the outer circumferential surface of the thick tube (209), and the receiving nozzle is connected to the bottom of the melting tank (206). A piston (210) is sleeved inside the thick tube (209), and the piston (210) is driven by the hydraulic cylinder (205) to move inside the thick tube (209). Initially, the piston (210) blocks the connection between the receiving nozzle and the thick tube (209); An output nozzle (211) is provided at the output end of the thick tube (209), a thin tube (212) is provided on the outer circumferential surface of the melting tank (206), an electric heating wire is wound around the outer circumferential surface of the thin tube (212), and the injection component (200) further comprises an injection nozzle (213), and the output nozzle (211), the thin tube (212) and the injection nozzle (213) are connected via a connecting assembly (214).

2. The injection molding device for processing drone blades according to claim 1, characterized in that: The connecting component (214) is configured to switch between an injection state and a connection state. The connecting component (214) in the injection state is used to achieve communication between the injection nozzle (213) and the output nozzle (211), and the connecting component (214) in the connection state is used to achieve communication between the output nozzle (211) and the capillary (212).

3. The injection molding device for processing drone blades according to claim 2, characterized in that: A feeding pipe (202) is provided on the outer circumferential surface of the melting tank (206); the upper end of the feeding pipe (202) is connected to a storage hopper (204), and a solenoid valve (203) is provided at the connection.

4. The injection molding device for processing drone blades according to claim 2, characterized in that: The blade (208) is arranged in a spiral shape, and a plurality of holes are arranged on the outer surface of the blade (208) along the extension direction.

5. The injection molding device for processing drone blades according to claim 2, characterized in that: The connecting assembly (214) comprises a connecting pipe (2141), the outer surface of the connecting pipe (2141) is provided with a side nozzle 1 (2142) connected to the output nozzle (211) and a side nozzle 2 (2143) connected to the capillary (212), and the injection nozzle (213) is arranged at the lower end of the connecting pipe (2141); An inner conduit (2144) arranged vertically is arranged in the connecting pipe (2141); an upper connecting hole is arranged on the outer circumferential surface of the inner conduit (2144); the second side nozzle (2143) is connected to the upper connecting hole; an inner sliding shaft (2145) is slidably arranged in the inner conduit (2144); the inner sliding shaft (2145) is in the shape of a hollow shaft; the lower end of the inner sliding shaft (2145) extends out of the inner conduit (2144) and is provided with a conical sealing head (2148); and a lower connecting hole (2149) communicating with the inner sliding shaft (2145) is provided on the conical sealing head (2148); A side hole is provided on the outer circumferential surface of the inner sliding shaft (2145), and during the movement of the inner sliding shaft (2145) in the inner guide tube (2144), the side hole can be connected to the upper connecting hole.

6. The injection molding device for processing drone blades according to claim 5, characterized in that: The upper end of the inner cavity of the injection nozzle (213) is configured to be a conical surface shape with a diameter that increases from bottom to top, the lower end of the inner cavity of the inner guide tube (2144) is configured to be a conical surface shape with a diameter that decreases from bottom to top, and the outer diameter of the conical sealing head (2148) first increases and then decreases from bottom to top. When the inner sliding shaft (2145) moves, the inner sliding shaft (2145) moves with the conical sealing head (2148), and the conical sealing head (2148) can fit with the lower end of the inner cavity of the inner guide tube (2144) or the upper end of the inner cavity of the injection nozzle (213). The lower connecting hole (2149) is arranged on the portion of the outer diameter of the conical sealing head (2148) that decreases from bottom to top.

7. The injection molding device for processing a drone blade according to claim 6, characterized in that: When the conical sealing head (2148) is in contact with the upper end of the inner cavity of the injection nozzle (213), the conical sealing head (2148) blocks the injection nozzle (213) and the side hole is connected to the upper connecting hole. When the conical sealing head (2148) is in contact with the lower end of the inner cavity of the inner conduit (2144), the lower connecting hole (2149) is blocked by the lower end of the inner cavity of the inner conduit (2144).

8. The injection molding device for processing drone blades according to claim 7, characterized in that: The linear module for driving the inner sliding shaft (2145) to move comprises a vertically arranged lead screw (2146) and a third motor (2147) for driving the lead screw (2146) to rotate. The lower end of the lead screw (2146) extends into the inner guide tube (2144), and the lead screw (2146) and the inner sliding shaft (2145) are threadedly connected.

9. The injection molding device for processing drone blades according to claim 7, characterized in that: The mold component (100) comprises a vertically arranged rotating shaft (101) and a first motor (102) for driving the rotating shaft (101) to rotate; a mold unit (104) is mounted on the outer cylindrical surface of the rotating shaft (101); a connecting arm is arranged on the mold frame of the mold unit (104); and the end of the connecting arm forms a sliding connection with the rotating shaft (101) in the vertical direction; When the mold unit (104) rotates along with the rotating shaft (101), the molten plastic entry end of the mold unit (104) can be located directly below the injection nozzle (213), and a telescopic rod (103) is provided below the injection nozzle (213), and the mold unit (104) can be lifted by the telescopic rod (103) so that the injection nozzle (213) can be inserted into the molten plastic entry end of the mold unit (104).

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