Automobile injection mold with full-range rapid cooling cover structure

Abstract

The utility model discloses a kind of automobile injection mould with all-around rapid cooling covering structure, the utility model relates to injection mould technical field.This automobile injection mould with all-around rapid cooling covering structure includes support frame, the upper portion of support frame is provided with forming mechanism, for limiting melt shape, the forming mechanism includes: limiting component, including fixedly installed on the upper portion of support frame bottom die, the inside fixed mounting of bottom die has flow guide frame, the lower portion of flow guide frame is embeddedly installed with limiting frame, flow guide frame is embeddedly installed in bottom die inside, limiting frame is fixed with bottom die by bolt and limiting flow guide frame, cover plate is also fixed with movable mould by bolt, when needing cleaning, detachable bolt opens limiting frame and cover plate, flow guide frame and flow guide plate are directly taken out from corresponding installation position, the impurity deposited on its surface and runner is thoroughly cleaned, without complex disassembly to mould body, greatly simplify cleaning operation.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to an automotive injection mold with an all-around rapid cooling covering structure. Background Technology

[0002] Injection molds are the core equipment in the injection molding process. Their core function is to precisely shape molten plastic raw materials into plastic products with specific structures, dimensions, and properties. They are the key bridge connecting plastic raw materials and end products. They not only determine the appearance, precision, and function of plastic products, but also directly affect the efficiency, cost, and stability of injection molding production. They are widely used in almost all industries that use plastic products, such as home appliances, automobiles, electronics, medical devices, and daily necessities.

[0003] The existing utility model patent with announcement number CN218876201U discloses a new energy vehicle injection mold with a rapid cooling structure, belonging to the field of injection molds. It includes an upper mold, a lower mold, and a cooling water tank. The upper mold has an injection hole on its upper surface and symmetrically arranged L-shaped channels inside, connecting to a first flexible hose. The first flexible hose connects to the cooling water tank via a tee connector. The upper mold also has multiple sets of first through holes connecting to the L-shaped channels. The lower mold has symmetrically arranged water channels connecting to a second flexible hose, which connects to a tee connector. The lower mold also has multiple sets of second through holes connecting to the water channels. An injection cavity is provided on the lower mold. The four corners of the upper and lower molds are connected by hydraulic cylinders. This device uses cooling water circulation in the cooling water tank to simultaneously cool the upper and lower molds, improving the efficiency of material solidification in the injection cavity and enhancing the cooling effect of the upper and lower molds, thereby increasing production efficiency.

[0004] The aforementioned injection mold cools the mold by means of cooling water. During long-term circulation of the cooling water, impurities in the water are prone to deposit in small channels such as through holes, which leads to a reduction in the cross-sectional area of ​​the channel, an increase in water flow resistance, a gradual decrease in cooling efficiency, and difficulty in cleaning the deposited impurities. At the same time, the small diameter of the cooling channel limits the liquid flow rate and the effective cooling area, thus affecting the cooling efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides an automotive injection mold with an all-around rapid cooling coverage structure, which solves the problems of inconvenient cleaning of impurities deposited in the channels and the impact of limited flow channel diameter on cooling efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automotive injection mold with an all-around rapid cooling covering structure includes a support frame, and a molding mechanism is disposed above the support frame to limit the shape of the melt. The molding mechanism includes: The limiting component includes a bottom mold fixedly installed above a support frame, a flow guide frame fixedly installed inside the bottom mold, a limiting frame fitted below the flow guide frame, a guide post fixedly installed on the outside of the bottom mold, a moving mold inserted above the guide post, a flow guide plate fitted inside the moving mold, and a cover plate fixedly installed above the moving mold. A cooling assembly, located below the support frame, is used to reduce the temperature of the melt.

[0007] Preferably, the cooling assembly includes a water tank fixedly installed below the support frame. A partition is fixedly installed inside the water tank. Heat pipes are arranged on the upper and lower sides of the partition. A heat-conducting fin is inserted and installed on the outer end of the heat pipe. A flow guide is arranged on the outer side of the heat-conducting fin. Fans are fixedly installed at both ends of the flow guide. A liquid pump is connected to the front end of the water tank. A connecting pipe is fixedly installed above the water tank. A diverter pipe is fixedly installed at the drain end of the liquid pump. A connecting hose is fixedly installed at one end of the diverter pipe.

[0008] Preferably, the top and all sides of the flow guide frame are mesh structures, with perforations between them to guide the water flow. The inside of the flow guide frame contacts the limiting frame, and the outside contacts the inner wall of the bottom mold. The moving mold and the guide column form a sliding connection. The bottom of the moving mold is provided with a recess that matches the protruding structure on the top of the bottom mold, which cooperates with the top of the bottom mold to form a mold cavity.

[0009] Preferably, the top of the guide plate has a mesh structure, and the surrounding area is plate-shaped. The liquid flow is guided through the opening structure between them. Two pipe structures are provided in the center of the cover plate for conveying melt and discharging air from inside the mold cavity. The bottom end of the pipe structure in the center of the cover plate is in contact with the top surface of the inner wall of the moving mold.

[0010] Preferably, the water tank is connected to the inlet of the liquid pump, the length of the partition is less than that of the water tank, and the front end of the partition contacts the inner wall of the water tank. The gap between the rear end of the partition and the inner wall of the water tank is used to guide the direction of water flow. There are two connecting pipes, the top end of which passes through the limiting frame and communicates with the cavity between the limiting frame and the bottom mold. The bottom end of one connecting pipe is connected to the water tank, and the other connecting pipe is connected to a branch of the diversion pipe.

[0011] Preferably, there are two connecting hoses, the top ends of which are connected to the cavity between the moving mold and the cover plate, and one connecting hose is directly connected to the water tank, while the other connecting hose is connected to another branch of the diversion pipe.

[0012] Beneficial effects This invention provides an automotive injection mold with an all-around rapid cooling cover structure. Compared with the prior art, it has the following advantages: (1) This automotive injection mold with an all-around rapid cooling cover structure forms an open flow channel structure between the three components through the cooperation of the guide frame, the bottom mold, and the limiting frame. At the same time, the guide plate cooperates with the moving mold and the cover plate to form a smooth flow channel between the three components. The guide frame is installed inside the bottom mold in an interlocking manner. The limiting frame is fixed to the bottom mold with bolts and limits the guide frame. The cover plate is also fixed to the moving mold with bolts. When cleaning is required, the limiting frame and the cover plate can be opened by removing the bolts, and the guide frame and guide plate can be directly removed from their corresponding installation positions to thoroughly clean the impurities deposited on their surfaces and in the flow channels. There is no need to perform complex disassembly of the mold body, which greatly simplifies the cleaning operation.

[0013] (2) The automotive injection mold with an all-around rapid cooling coverage structure features a mesh structure on the top and sides of the guide frame, as well as a mesh structure on the top of the guide plate. This structure, combined with the corresponding mold components, forms a flow channel that overcomes the limitations of traditional small-diameter pipes, resulting in a wider water flow channel and effectively increasing the liquid flow rate. Simultaneously, the mesh structure and the perforated structure work together to guide the cooling water to evenly cover the sides and top of the mold cavity, significantly increasing the effective heat exchange area between the cooling water and the mold. Furthermore, the cooling water output from the pump is divided into two paths via a distribution pipe, flowing synchronously to the flow channels corresponding to the bottom mold and the moving mold, ensuring that the cooling medium can comprehensively and rapidly exchange heat with the mold, significantly improving cooling efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the moving mold installation structure of this utility model; Figure 3 This is a schematic diagram of the air guide frame installation structure of this utility model; Figure 4 This is a schematic diagram of the guide plate structure of this utility model; Figure 5 This is a schematic diagram of the liquid pump installation structure of this utility model; In the diagram: 1. Support frame; 2. Molding mechanism; 21. Limiting component; 211. Bottom mold; 212. Flow guide frame; 213. Limiting frame; 214. Guide column; 215. Moving mold; 216. Flow guide plate; 217. Cover plate; 22. Cooling component; 221. Water tank; 222. Partition plate; 223. Heat pipe; 224. Heat conducting plate; 225. Flow guide cover; 226. Fan; 227. Liquid pump; 228. Connecting pipe; 229. Diverter pipe; 2210. Connecting hose. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-5 This utility model provides a technical solution: an automotive injection mold with an all-around rapid cooling covering structure includes a support frame 1, and a molding mechanism 2 is arranged above the support frame 1 to limit the shape of the melt. The molding mechanism 2 includes: The limiting component 21 includes a bottom mold 211 fixedly installed above the support frame 1. A flow guide frame 212 is fixedly installed inside the bottom mold 211. A limiting frame 213 is fitted below the flow guide frame 212. A guide post 214 is fixedly installed on the outside of the bottom mold 211. A moving mold 215 is inserted above the guide post 214. A flow guide plate 216 is fitted inside the moving mold 215. A cover plate 217 is fixedly installed above the moving mold 215. The top and sides of the flow guide frame 212 are of a mesh structure, with openings between them to guide the water flow. The inner part contacts the limiting frame 213, and the outer part contacts the inner wall of the bottom mold 211. The moving mold 215 and the guide post 214 form a sliding connection. The bottom of the moving mold 215 is provided with a recess that matches the protruding structure on the top of the bottom mold 211. It cooperates with the top of the bottom mold 211 to form a mold cavity. The top of the guide plate 216 is a grid structure, and the surrounding area is plate-shaped. The liquid flow is guided through the opening structure. The center of the cover plate 217 is provided with two pipe structures for conveying melt and discharging air from inside the mold cavity. The bottom end of the pipe structure at the center of the cover plate 217 contacts the top surface of the inner wall of the moving mold 215.

[0017] Specifically, the limiting frame 213 is bolted to the bottom mold 211 and sealed with a gasket. The limiting frame 213 restricts the position of the flow guide frame 212, allowing the grid structure of the flow guide frame 212 to form a flow channel structure with the inner wall of the recessed structure at the bottom of the bottom mold 211 and the outer wall of the limiting frame 213. The flow guide frame 212 also provides support for the bottom mold 211. The flow guide plate 216 cooperates with the recessed structure at the top of the moving mold 215 and the cover plate 217 above it to form a flow channel structure above the moving mold 215. The cover plate 217 is bolted to the moving mold 215 and sealed with a gasket. This method ensures the heat exchange area between the cooling water and the bottom mold 211 and moving mold 215, while allowing the flow guide frame 212 and flow guide plate 216 to be removed from the bottom mold 211 and moving mold 215 for cleaning.

[0018] A cooling assembly 22, located below the support frame 1, is used to reduce the melt temperature. The cooling assembly 22 includes a water tank 221 fixedly installed below the support frame 1. A partition 222 is fixedly installed inside the water tank 221. Heat pipes 223 are arranged on the upper and lower sides of the partition 222. Heat-conducting fins 224 are inserted through the outer ends of the heat pipes 223. A flow guide shroud 225 is arranged on the outer side of the heat-conducting fins 224. Fans 226 are fixedly installed at both ends of the flow guide shroud 225. A liquid pump 227 is connected to the front end of the water tank 221. A connecting pipe 228 is fixedly installed above the water tank 221. A diversion pipe 229 is fixedly installed at the drain end of the liquid pump 227. A connecting hose 2210 is fixedly installed at one end of the diversion pipe 229. The water tank 221 and the liquid pump 227... The water inlet is connected. The length of the baffle 222 is less than that of the water tank 221, and the front end of the baffle 222 contacts the inner wall of the water tank 221. The gap between the rear end of the baffle 222 and the inner wall of the water tank 221 is used to guide the direction of water flow. There are two connecting pipes 228. The top end of the connecting pipe 228 passes through the cavity between the limiting frame 213 and the bottom mold 211. The bottom end of one connecting pipe 228 is connected to the water tank 221, and the other connecting pipe 228 is connected to one branch of the diversion pipe 229. There are two connecting hoses 2210. The top ends of both hoses are connected to the cavity between the moving mold 215 and the cover plate 217. One connecting hose 2210 is directly connected to the water tank 221, and the other connecting hose 2210 is connected to another branch of the diversion pipe 229.

[0019] Specifically, the liquid pump 227 can transport the cooling water in the water tank 221 to the bottom mold 211 and the moving mold 215 through the diverter pipe 229, connecting pipe 228, and connecting hose 2210. The cooling water will circulate between the water tank 221 and the bottom mold 211 and the moving mold 215 under the restriction of the guide frame 212 and the guide plate 216, thereby cooling the bottom mold 211 and the moving mold 215. After the high-temperature cooling water enters the water tank 221, it will flow from the upper layer to the lower layer through the gap between the rear end of the partition 222 and the water tank 221 under the guidance of the partition 222. The heat pipe 223 absorbs the heat of the cooling water, and the airflow generated by the fan 226 inside the guide shroud 225 will carry away the heat absorbed by the heat pipe 223, thereby cooling the cooling water.

[0020] Specifically, the model of the liquid pump 227 is HAWE-R15. In addition, all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0021] During operation, the moving mold 215 slides along the guide post 214 under the drive of the hydraulic equipment. Its bottom recess precisely fits with the top protrusion of the bottom mold 211 to form a sealed mold cavity. The guide frame 212 is fitted inside the bottom mold 211 and is limited by the limiting frame 213 below. The guide plate 216 is fitted inside the moving mold 215. The cover plate 217 is fixed and sealed above the moving mold 215 by bolts. Molten plastic raw material is transported into the mold cavity through a pipe structure in the center of the cover plate 217, while another pipe structure simultaneously discharges air from the mold cavity to ensure that the melt fills the mold cavity. The liquid pump 227 is started to draw cooling water from the water tank 221 and splits it into two paths through the diversion pipe 229. One path is transported to the cavity between the bottom mold 211 and the limiting frame 213 through the connecting pipe 228, and the other path is transported to the moving mold 215 through the connecting hose 2210. In the cavity between mold 15 and cover plate 217, cooling water is guided by the grid and perforated structure of guide frame 212 and guide plate 216, and flows evenly along the inner wall of bottom mold 211 and moving mold 215 respectively, making full contact with the surrounding mold cavity to exchange heat and absorb heat. The high-temperature cooling water after heat exchange flows back to water tank 221 through another connecting pipe 228 and another connecting hose 2210. Guided by partition plate 222, it flows from the upper layer to the lower layer through the gap between its rear end and the inner wall of water tank 221. Heat pipe 223 in water tank 221 absorbs the heat of cooling water and transfers it to heat conduction plate 224. After the fan 226 is started, airflow is generated in guide cover 225, which carries away the heat on heat conduction plate 224 to cool the cooling water. The cooled water is then pumped by liquid pump 227 to enter the next cycle, and continues to cool until the melt in the mold cavity is completely solidified.

[0022] 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.

[0023] 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. An automotive injection mold with an all-around rapid cooling covering structure, characterized in that: The system includes a support frame (1), and a forming mechanism (2) is provided above the support frame (1) for limiting the shape of the melt. The forming mechanism (2) includes: The limiting component (21) includes a bottom mold (211) fixedly installed above the support frame (1), a flow guide frame (212) fixedly installed inside the bottom mold (211), a limiting frame (213) fitted below the flow guide frame (212), a guide post (214) fixedly installed on the outside of the bottom mold (211), a moving mold (215) inserted above the guide post (214), a flow guide plate (216) fitted inside the moving mold (215), and a cover plate (217) fixedly installed above the moving mold (215). A cooling component (22) is located below the support frame (1) to reduce the temperature of the melt.

2. The automotive injection mold with an all-around rapid cooling cover structure according to claim 1, characterized in that: The cooling assembly (22) includes a water tank (221) fixedly installed below the support frame (1). A partition (222) is fixedly installed inside the water tank (221). Heat pipes (223) are provided on the upper and lower sides of the partition (222). A heat-conducting plate (224) is inserted and installed on the outer end of the heat pipe (223). A flow guide (225) is provided on the outer side of the heat-conducting plate (224). A fan (226) is fixedly installed at both ends of the flow guide (225). A liquid pump (227) is connected to the front end of the water tank (221). A connecting pipe (228) is fixedly installed above the water tank (221). A diversion pipe (229) is fixedly installed at the drain end of the liquid pump (227). A connecting hose (2210) is fixedly installed at one end of the diversion pipe (229).

3. The automotive injection mold with an all-around rapid cooling cover structure according to claim 1, characterized in that: The top and sides of the flow guide (212) are all grid structures, and the water flow is guided by the opening structure. The inside of the flow guide (212) is in contact with the limiting frame (213), and the outside is in contact with the inner wall of the bottom mold (211). The moving mold (215) and the guide column (214) form a sliding connection. The bottom of the moving mold (215) is provided with a recess that matches the protruding structure on the top of the bottom mold (211), and it cooperates with the top of the bottom mold (211) to form a mold cavity.

4. The automotive injection mold with an all-around rapid cooling cover structure according to claim 1, characterized in that: The top of the guide plate (216) is a grid structure, and the surrounding area is plate-shaped. The liquid flow is guided through the opening structure. The center of the cover plate (217) is provided with two pipe structures for conveying melt and discharging air from inside the mold cavity. The bottom end of the pipe structure at the center of the cover plate (217) is in contact with the top surface of the inner wall of the moving mold (215).

5. An automotive injection mold with an all-around rapid cooling cover structure according to claim 2, characterized in that: The water tank (221) is connected to the inlet of the liquid pump (227). The length of the partition (222) is less than that of the water tank (221), and the front end of the partition (222) is in contact with the inner wall of the water tank (221). The gap between the rear end of the partition (222) and the inner wall of the water tank (221) is used to guide the direction of water flow. There are two connecting pipes (228). The top end of the connecting pipe (228) passes through the limit frame (213) and is connected to the cavity between the limit frame (213) and the bottom mold (211). The bottom end of one connecting pipe (228) is connected to the water tank (221), and the other connecting pipe (228) is connected to a branch of the diversion pipe (229).

6. The automotive injection mold with an all-around rapid cooling cover structure according to claim 2, characterized in that: There are two connecting hoses (2210), the top ends of which are connected to the cavity between the moving mold (215) and the cover plate (217). One connecting hose (2210) is directly connected to the water tank (221), and the other connecting hose (2210) is connected to another branch of the diversion pipe (229).

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