A precision impeller injection mold capable of efficient cooling

Abstract

The present invention relates to the technical field of impeller injection molds, and specifically to a precision impeller injection mold capable of efficient cooling, comprising a mold base, wherein a fixed mold is arranged at the upper end of the mold base, a movable mold is movably installed just above the fixed mold, an injection hole is arranged at the center of the movable mold, a support seat is arranged between the fixed mold and the mold base, and an air-cooling cavity is arranged in the inner cavity of the support seat; the beneficial effects are as follows: the injection mold adopts a combination of water cooling and air cooling to achieve efficient cooling of the impeller injection mold and improve the molding effect; the side and bottom of the impeller mold are efficiently cooled by water through the cooperation of water tank one and water tank two with a circulating cooling mechanism, and the internal structure of a water inlet pipe one is optimized to ensure the extraction of gas in the water flow; while water cooling, the rotation of the turbulent impeller is promoted to disturb the water flow, accelerate the uniformity of the water flow, and further enhance the cooling and molding efficiency of the impeller injection mold.

Description

Technical Field

[0001] The invention relates to the technical field of impeller injection molds, in particular to a precision impeller injection mold capable of efficient cooling. Background Art

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. With the advancement of science and technology and the development of manufacturing, injection molding technology has been widely used in the production of various precision products. Among them, precision impellers, as key components, have extremely high requirements on the cooling efficiency and precision of injection molds. When the movable mold and the fixed mold are engaged under the operation of the hydraulic cylinder, the molded part on the lower side of the fixed mold is combined with the molding cavity to form the mold cavity of the injection molded part. Then, liquefied plastic is injected into the molding cavity through the injection tube. After the liquefied plastic is cooled, an injection molded part is formed. At this time, the movable mold and the fixed mold can be separated to take out the plastic part. However, the cooling speed of injection molded parts is relatively slow, which affects the demolding efficiency of injection molded parts. If the demolding is performed when the temperature of the injection molded parts is too high, it is easy to cause damage to the injection molded parts.

[0003] In the prior art, there is an injection mold for cooling injection materials, such as the one with publication number CN217319019U, which specifically relates to the field of injection mold technology, including a mold body, the mold body including an upper mold and a lower mold, the upper mold is located at the top of the lower mold, an adjustment mechanism is provided between the upper mold and the lower mold, a cooling cavity is provided inside the lower mold, a heat pipe is provided inside the cooling cavity, and the heat pipe is wound along the inner wall of the cooling cavity. The heat in the lower mold is absorbed by the heat pipe, and then water is transported to the heat pipe by means of a water pump. During the flow of water, the heat absorbed by the heat pipe is absorbed and carried, thereby cooling the injection mold in the lower mold.

[0004] However, in actual use, although the motor is used to promote the flow of water, the consumption cost is increased, and the water is pumped into the water tank through the water pump. The reciprocating liquid can easily cause gas to enter the water pipe, resulting in accumulation or retention of gas in the water flow, affecting the flow of water in the water pipe, reducing the mold forming efficiency, and easily causing corrosion of the pipeline.

[0005] Therefore, the present invention proposes a precision impeller injection mold that can be cooled efficiently to solve the problem that the gas accumulated inside the liquid cooling pipe of the existing injection mold is difficult to discharge, affecting the flow of water in the pipe and thus reducing the mold molding efficiency. The gas in the water flow can be discharged to avoid gas retention in the water pipe affecting the flow of water, thereby accelerating the cooling and molding rate. Summary of the invention

[0006] The object of the present invention is to provide a precision impeller injection mold capable of efficient cooling, so as to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a precision impeller injection mold capable of efficient cooling, comprising a mold base, a fixed mold is arranged at the upper end of the mold base, a movable mold is movably installed just above the fixed mold, an injection hole is arranged at the center of the movable mold, a support seat is arranged between the fixed mold and the mold base, an air-cooling cavity is arranged in the inner cavity of the support seat, an impeller mold and a liquid-cooling cavity are arranged inside the fixed mold, a water tank 1 and a water tank 2 are arranged on both sides of the fixed mold, a circulating cooling mechanism is arranged on the inner side of the water tank 1, the circulating cooling mechanism comprises a water inlet pipe 1, a water storage plate and a water inlet pipe 3, a sealing plate is arranged at one end of the water inlet pipe 1, a water delivery port is opened on the upper inner wall of the sealing plate, the water inlet pipe 1 penetrates the side wall of the fixed mold, and a water inlet pipe 2 is arranged on the inner side of the water inlet pipe 1.

[0008] Preferably, a conical water guide cover is fixedly installed on the inner side of the output end of the water inlet pipe 2, and the conical water guide cover is a conical bucket-shaped structure with an opening narrowing inward. The inner wall of the upper end of the water inlet pipe 2 is through-connected with one end of the water inlet pipe 3. The water inlet pipe 3 is an annular empty pipe structure. The output end of the water inlet pipe 3 extends to the interior of the water tank 1. The inner wall of the water tank 1 is through-connected with a circulation pipe. A micro-circulation pump is provided at one end of the circulation pipe, and the micro-circulation pump is installed on the outside of the water tank 1. The water outlet end of the circulation pipe extends to the inner side of the sealing plate.

[0009] Preferably, a dredging opening is provided on the inner wall of the lower end of the water inlet pipe 1, and a bottom auxiliary impurity removal component is arranged on the inner side of the dredging opening, and the bottom auxiliary impurity removal component includes a dredging square tube, and a filter cone cover is fixedly connected to the inner surface of the dredging square tube, and the filter cone cover is a square pyramid-shaped structure. The filter cone cover penetrates the upper inner wall of the water tank 1 and extends to the inner side of the water tank 1, and the water tank 1 as a whole is a hollow "concave" structure.

[0010] Preferably, a pushing block is movably connected to the inner side of the water inlet pipe 1, one end of the pushing block is provided with a slope angle, side grooves are respectively provided on the inner walls on both sides of the pushing block, and a receiving groove is provided on the inner surface of the pushing block.

[0011] Preferably, a center hole is opened on the central inner wall of the pushing block, and a buffer assembly is provided at the end of the pushing block away from the slope angle, and the buffer assembly includes an elastic abutment ring plate, the outer surface of the elastic abutment ring plate is movably connected to the inner wall of the water inlet pipe one, and the other end of the elastic abutment ring plate is fixedly connected to a fixing ring, and the fixing ring is fixedly installed at one end of the water inlet pipe two.

[0012] Preferably, the water storage plate is fixedly installed on the upper end of water inlet pipe one, and an air guide port and a drip pipe are opened between the water storage plate and water inlet pipe one. The drip pipe passes through the inner walls of water inlet pipe one and water inlet pipe two. An air guide bend is fixedly connected to the inner side of the air guide port, and a focusing hood is provided at the other end of the air guide bend, and a filter plate is provided at the lower end of the focusing hood.

[0013] Preferably, the upper end of the water storage plate is fixedly connected to a cylindrical plate, the cylindrical plate is a hollow cylindrical structure, the inner side of the cylindrical plate is movably connected to a piston, the lower end of the piston is through-connected to the upper end of the condenser, and an exhaust pipe is through-connected to the inner wall of one side of the cylindrical plate.

[0014] Preferably, the inner cavity of the liquid cooling chamber is provided with a spoiler impeller, the center of the spoiler impeller is fixedly connected to a driving rod, the driving rod passes through the bottom surface of the fixed mold and the top surface of the support seat, and the outer surface of the driving rod is rotatably connected to the inner walls of the fixed mold and the support seat respectively, the lower outer surface of the driving rod is fixedly connected to an air-cooling blade, the air-cooling blade is movably installed on the inner side of the air-cooling chamber, the lower end of the air-cooling chamber is provided with a heat dissipation port, and a dust shield is provided on the inner wall of the heat dissipation port.

[0015] Preferably, an auxiliary liquid guiding telescopic tube is connected through the inner annular surface of the water inlet pipe three, and a guide outlet is provided at the output end of the auxiliary liquid guiding telescopic tube. A socket plate 1 and a socket plate 2 are respectively sleeved and installed on the outer surfaces of both ends of the auxiliary liquid guiding telescopic tube, and an elastic connecting block is fixedly connected to the inner sides of the socket plate 1 and the socket plate 2, and an electromagnetic block 1 is fixedly added to the outer surface of the socket plate 2.

[0016] Preferably, the spoiler impeller is composed of six groups of spoiler blades, and electromagnetic blocks 2 are fixedly mounted on three adjacent groups of spoiler blades, and the electromagnetic blocks 2 are electrically connected to the electromagnetic block 1.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention proposes a precision impeller injection mold that can be efficiently cooled. The injection mold adopts a combination of water cooling and air cooling to achieve efficient cooling of the impeller injection mold and improve the molding effect. The water tank one and the water tank two cooperate with the circulating cooling mechanism to efficiently water-cool the side and bottom of the impeller mold, and the internal structure of the water inlet pipe one is optimized to ensure the discharge of gas in the water flow, thereby solving the problem that the gas accumulated inside the liquid cooling pipeline of the existing injection mold is difficult to discharge, affecting the flow of water in the pipeline and thus reducing the molding efficiency of the mold; while water cooling, it also promotes the rotation of the turbulent impeller, disturbs the water flow, accelerates the uniformity of the water flow, and further enhances the cooling and molding efficiency of the impeller injection mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1This is a schematic diagram of the structure of the fixed mold and the movable mold in the separated state of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the fixed mold and the movable mold in the mold closing state of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the present invention with the movable mold removed;

[0022] Figure 4 This is a schematic diagram of the half-section structure of the present invention with the movable mold removed;

[0023] Figure 5 It is a schematic diagram of the partial cross-sectional structure of the fixed mold of the present invention;

[0024] Figure 6 For the present invention Figure 4 A schematic diagram of the enlarged structure at point A;

[0025] Figure 7 For the present invention Figure 6 A1 of the enlarged structural diagram;

[0026] Figure 8 For the present invention Figure 6 A2 of the enlarged structural diagram;

[0027] Fig. 9 It is a partial half-section structural schematic diagram of the circulating cooling mechanism of the present invention;

[0028] Fig.10 For the present invention Fig. 9 A schematic diagram of the enlarged structure at B;

[0029] Fig.11 It is a schematic diagram of the cut-away cross-section structure of the circulating cooling mechanism of the present invention;

[0030] Fig.12 It is a three-dimensional structural schematic diagram of the circulating cooling mechanism of the present invention;

[0031] Fig.13 It is a schematic diagram of the split structure of the water inlet pipe 3 and the turbulent impeller of the present invention;

[0032] Fig.14 For the present invention Fig.13 Enlarged structural diagram at C.

[0033] In the figure: 1. mold base; 11. fixed mold; 111. impeller mold; 112. liquid cooling chamber; 12. movable mold; 13. support seat; 130. air cooling chamber; 2. water tank 1; 21. water tank 2; 210. drain pipe; 211. circulation pipe; 212. micro circulation pump; 3. circulation cooling mechanism; 31. water inlet pipe 1; 311. push block; 3110. side groove; 31100. receiving groove; 31101. baffle; 31102. curved elastic wire; 312. elastic abutment ring plate; 3121. fixing ring; 310. dredging port; 310 1. Clearing square pipe; 3102. Filter cone cover; 32. Water inlet pipe 2; 320. Dropping pipe; 33. Water storage plate; 331. Air guide elbow; 3310. Air guide port; 332. Columnar plate; 3321. Piston; 3322. Exhaust pipe; 3311. Focusing cover; 3312. Filter plate; 34. Conical water guide cover; 35. Water inlet pipe 3; 351. Auxiliary liquid guide telescopic pipe; 3510. Guide outlet; 352. Socket plate 1; 353. Socket plate 2; 354. Elastic connecting block; 36. Turbine impeller; 37. Drive rod; 38. Air cooling blade. DETAILED DESCRIPTION

[0034] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] For example, see Figure 1-Figure 14The present invention provides a technical solution: a precision impeller injection mold capable of efficient cooling, comprising a mold base 1, a fixed mold 11 is arranged at the upper end of the mold base 1, a movable mold 12 is movably installed directly above the fixed mold 11, an injection hole is arranged at the center of the movable mold 12, a support seat 13 is arranged between the fixed mold 11 and the mold base 1, an air cooling cavity 130 is arranged in the inner cavity of the support seat 13, an impeller mold 111 and a liquid cooling cavity 112 are arranged inside the fixed mold 11, water tank 1 2 and water tank 2 21 are arranged on both sides of the fixed mold 11, a circulating cooling mechanism 3 is arranged on the inner side of the water tank 1 2, the circulating cooling mechanism 3 comprises a water inlet pipe 1 31, a water storage plate 33 and a water inlet pipe 3 35, and a sealing plate is arranged at one end of the water inlet pipe 1 31, A water delivery port is provided on the upper inner wall of the sealing plate, a water inlet pipe 1 31 penetrates the side wall of the fixed mold 11, and a water inlet pipe 2 32 is provided on the inner side of the water inlet pipe 1 31; a conical water guide cover 34 is fixedly installed on the inner side of the output end of the water inlet pipe 2 32, and the conical water guide cover 34 is a conical bucket-shaped structure with an opening narrowed inward, and the inner wall of the upper end of the water inlet pipe 2 32 is connected with one end of the water inlet pipe 3 35, and the water inlet pipe 3 35 is an annular empty pipe structure, and the output end of the water inlet pipe 3 35 extends to the inside of the water tank 1 2, and the inner wall of the water tank 1 2 is connected with a circulation pipe 211, and one end of the circulation pipe 211 is provided with a micro circulation pump 212, and the micro circulation pump 212 is installed on the outside of the water tank 1 2, and the water outlet end of the circulation pipe 211 extends to the inner side of the sealing plate;

[0036] In this embodiment, a liquid cooling chamber 112 is provided between the fixed mold 11 and the impeller mold 111 for water-cooling molding of the impeller mold 111, and a support seat 13 is additionally provided between the mold base 1 and the fixed mold 11, and an air cooling chamber 130 is provided at the bottom of the support seat 13, and a water inlet pipe 1 31 is passed through the side wall of the fixed mold 11, and a water delivery port provided at the water delivery end of the water inlet pipe 1 31 is externally connected to a water pipe, and when water flows into the water inlet pipe 1 31, the water flows through the water inlet pipe 2 32 and the water inlet pipe 3 35, so that most of the water flows through the conical water guide cover 34 to reach the inner cavity of the liquid cooling chamber 112, and a small part of the water flows through the water inlet pipe 3 35 and is introduced around the impeller mold 11. 1 is surrounded by the side wall, so as to achieve efficient cooling of the side wall and the bottom of the impeller mold 111. It should be noted that the conical water guide cover 34 is arranged at the output end of the water inlet pipe 32. By designing it as a conical bucket-shaped structure that narrows inward, the outflow of water can be accelerated. The outlet end of the water inlet pipe 35 is connected to the water tank 2, so that a small amount of water can be guided into the interior of the water tank 2 for recovery; the water enters through the water inlet pipe 31 and is discharged through the drain pipe 210. In this way, the turbulent impeller 36 in the center of the liquid cooling chamber 112 can be driven by the water flow to rotate, so as to achieve mixing of the water flow in the inner cavity of the liquid cooling chamber 112, and ensure the uniformity of cooling at the bottom of the impeller mold 111.

[0037] Embodiment 2, on the basis of embodiment 1, in order to ensure that the water from the water inlet pipe 1 31 flows to the water inlet pipe 2 32, a dredging port 310 is provided on the inner wall of the lower end of the water inlet pipe 1 31, and a bottom auxiliary impurity removal component is provided on the inner side of the dredging port 310, and the bottom auxiliary impurity removal component includes a dredging square pipe 3101, and a filter cone cover 3102 is fixedly connected to the inner surface of the dredging square pipe 3101, and the filter cone cover 3102 is a square pyramid structure, and the filter cone cover 3102 passes through the upper inner wall of the water tank 2 and extends to the inner side of the water tank 2, and the water tank 2 is a hollow "concave" structure as a whole; the inner side of the water inlet pipe 31 is movably connected to the inner side of the water tank 2. There is a pushing block 311, one end of the pushing block 311 is provided with a slope angle, side grooves 3110 are respectively provided on the inner walls of both sides of the pushing block 311, and a receiving groove 31100 is provided on the inner surface of the pushing block 311; a center hole is provided on the central inner wall of the pushing block 311, and a buffer component is provided at the end of the pushing block 311 away from the slope angle, and the buffer component includes an elastic abutting ring plate 312, the outer surface of the elastic abutting ring plate 312 is movably connected to the inner wall of the water inlet pipe 1 31, and the other end of the elastic abutting ring plate 312 is fixedly connected to a fixing ring 3121, and the fixing ring 3121 is fixedly installed at one end of the water inlet pipe 2 32;

[0038] In this embodiment, refer to Figure 4-6 As shown, the water delivery end of the water inlet pipe 1 31 is connected to a water pipe, and the water flows from the water inlet end of the water inlet pipe 1 31 to the water inlet pipe 2 32. At this time, most of the water flows through the center hole in the center of the pushing block 311 to flow to the water inlet pipe 2 32, and a small part of the water flows into the side grooves 3110 opened on the inner walls of both sides of the pushing block 311. The water flow is buffered by the buffer component connected to the rear end of the pushing block 311. After the water flow drives the pushing block 311 to move forward, it can also rely on the reverse elastic force of the buffer component to rebound. Specifically, when the water flow drives the pushing block 311 to move toward the side of the water inlet pipe 32, the side groove 3110 and the air guide port 3310 communicate with each other to form a flow channel; and it should be noted that since the gas existing in the water flow is always maintained at the upper position of the water inlet pipe 31, the gas will pass through the channel formed between the side groove 3110 and the air guide port 3310 and enter the inner side of the air guide elbow 331, thereby realizing the pre-discharge of the gas in the water flow and preventing the gas from following the water flow into the inner cavity of the liquid cooling chamber 112.

[0039] Embodiment 3: Based on Embodiment 2, in order to assist the advancement of the pushing block 311, this embodiment further proposes a booster assembly, the inner side of the receiving groove 31100 is provided with a booster assembly, the booster assembly includes a spoiler 31101 and a curved elastic wire 31102, one end of the spoiler 31101 is rotatably connected with a shaft, the shaft is fixedly mounted on the inner wall of one end of the receiving groove 31100, the curved elastic wire 31102 is fixedly mounted on the inner surface of the receiving groove 31100, and the other end of the curved elastic wire 31102 is movably connected to the back side of the spoiler 31101;

[0040] In this embodiment, refer to Figure 9-10 As shown, when the water flow introduced by the water delivery end of the water inlet pipe 31 flows through the central hole of the pushing block 311, the water flows to the surface of the baffle 31101, and the water flow impacts the baffle 31101 to cause it to rotate to both sides, so that the curved elastic wire 31102 is compressed. The baffle 31101 and the curved elastic wire 31102 cooperate with each other, which not only achieves the throttling effect on the central hole of the pushing block 311, but also serves the purpose of buffering, thereby avoiding damage to the water inlet pipe 31 caused by the impact of the water flow.

[0041] Embodiment 4, on the basis of embodiment 3, in order to achieve effective discharge of gas in the water flow and accumulation of a small amount of water flow, the water storage plate 33 is fixedly installed at the upper end of the water inlet pipe 1 31, and an air guide port 3310 and a drop pipe 320 are provided between the water storage plate 33 and the water inlet pipe 1 31. The drop pipe 320 passes through the inner walls of the water inlet pipe 1 31 and the water inlet pipe 2 32. The inner side of the air guide port 3310 is fixedly connected with an air guide elbow 331. The air guide elbow 331 is provided at the inner side of the air guide port 3310. The other end of the tube 331 is provided with a condenser 3311, and the lower end of the condenser 3311 is provided with a filter plate 3312; the upper end of the water storage plate 33 is fixedly connected with a cylindrical plate 332, and the cylindrical plate 332 is a hollow cylindrical structure, and the inner side of the cylindrical plate 332 is movably connected with a piston 3321, and the lower end of the piston 3321 is connected to the upper end of the condenser 3311, and the inner wall of one side of the cylindrical plate 332 is connected with an exhaust pipe 3322;

[0042] In this embodiment, refer to Figure 6-Figure 7 As shown in the figure, the channel formed between the side groove 3110 and the water storage plate 33 allows the water flow and the upper gas to enter the top of the water storage plate 33 through the air guide elbow 331, and the water flow will be filtered through the focus cover 3311 and the filter plate 3312, and then enter the inner side of the water storage plate 33 again. At this time, the gas will be stored at the bottom of the piston 3321. When the gas needs to be discharged, it is only necessary to manually pull the piston 3321 upward so that the piston 3321 is offset from the inlet of the exhaust pipe 3322. At this time, the gas is discharged through the exhaust pipe 3322. Subsequently, it is only necessary to reset the piston 3321 to realize the exhaust pipe 332 2 is blocked; it should be noted that, since impurities may accumulate at the bottom of the water inlet pipe 31, a channel will be formed between the pushing block 311 and the dredging port 310 during the advancement of the pushing block 311. A valve is provided on the inner side of the dredging port 310. When it is necessary to clean the impurities deposited at the bottom of the water inlet pipe 31, it is only necessary to open the valve to open the channel between the side groove 3110 and the dredging port 310. At this time, a part of the water flow and the deposited impurities are filtered through the filter cone cover 3102 and enter the water tank 2. It is only necessary to turn on the micro-circulation pump 212 to realize the reuse of the accumulated water flow in the water tank 2.

[0043] Embodiment 5, on the basis of embodiment 4, in order to improve the cooling effect of the side wall and the bottom of the impeller mold 111, the inner cavity of the liquid cooling chamber 112 is provided with a spoiler impeller 36, and the center of the spoiler impeller 36 is fixedly connected with a driving rod 37, the driving rod 37 penetrates the bottom surface of the fixed mold 11 and the top surface of the support seat 13, and the outer surface of the driving rod 37 is rotatably connected with the inner wall of the fixed mold 11 and the support seat 13, and the lower outer surface of the driving rod 37 is fixedly connected with an air-cooling blade 38, and the air-cooling blade 38 is movably installed on the inner side of the air-cooling chamber 130, and the lower end of the air-cooling chamber 130 is provided with a heat dissipation port, and the inner wall of the heat dissipation port is provided with a heat dissipation port. There is a dust-proof plate; an auxiliary liquid-conducting telescopic tube 351 is connected through the inner annular surface of the water inlet pipe 35, and an outlet 3510 is provided at the output end of the auxiliary liquid-conducting telescopic tube 351. The outer surfaces of both ends of the auxiliary liquid-conducting telescopic tube 351 are respectively sleeved with a sleeve plate 1 352 and a sleeve plate 2 353. The inner sides of the sleeve plate 1 352 and the sleeve plate 2 353 are fixedly connected with an elastic connecting block 354, and the outer surface of the sleeve plate 2 353 is fixedly provided with an electromagnetic block 1; the spoiler impeller 36 is composed of six groups of spoiler blades, and three groups of adjacent spoiler blades are fixedly provided with electromagnetic blocks 2, and the electromagnetic block 2 is electrically connected to the electromagnetic block 1;

[0044] In this embodiment, when cooling water is discharged from the outlet end of the water inlet pipe 32, the water flow causes the turbulent impeller 36 to rotate. The rotating turbulent impeller 36 realizes the disturbance of the water flow, avoids the heat accumulation at the bottom of the impeller mold 111, improves the impeller injection molding effect, and cooperates with the rotation of the turbulent impeller 36 to drive the driving rod 37 and the air-cooling blade 38 to rotate. In this way, water cooling is achieved while the air-cooling blade 38 performs air cooling and heat dissipation on the mold. It should be noted that an electromagnetic block 2 is added to the turbulent impeller 36, and an electromagnetic block 1 is added to the socket plate 353. When both are energized, the rotation of the turbulent impeller 36 drives the auxiliary liquid guide telescopic tube 351 to extend and retract, thereby achieving uniform water cooling of the side wall of the impeller mold 111, increasing the flow and cooling area of ​​the water flow, and further improving the cooling effect of the impeller injection mold.

[0045] In actual use, first ensure that all parts of the mold are correctly installed and the injection hole is aligned with the injection molding machine; then, connect the water pipe to the water outlet set at the water delivery end of the water inlet pipe 1 31 to ensure that the water flow can smoothly enter the mold, and check the sealing between the various parts of the mold to ensure that the cooling water will not leak. When the water flows into the water inlet pipe 1 31, the water flows through the water inlet pipe 2 32 and the water inlet pipe 3 35, so that most of the water flows through the conical water guide cover 34 to reach the inner cavity of the liquid cooling chamber 112, and a small part of the water flows through the water inlet The water is introduced into the water inlet pipe 35 and surrounds the side wall of the impeller mold 111, so that the side wall and the bottom of the impeller mold 111 are efficiently cooled; moreover, at this time, most of the water flow will flow to the water inlet pipe 2 32 through the central hole in the center of the pushing block 311, and a small part of the water flow will enter the side grooves 3110 opened on the inner walls of both sides of the pushing block 311. The gas in the water flow is always maintained at the upper position of the water inlet pipe 1 31. At this time, the gas will enter the guide pipe 1 31 through the channel formed between the side groove 3110 and the air guide port 3310. The inner side of the air bend pipe 331 realizes the pre-discharge of gas in the water flow to prevent the gas from following the water flow into the inner cavity of the liquid cooling chamber 112. The water flow will be filtered through the focusing cover 3311 and the filter plate 3312 and enter the inner side of the water storage plate 33 again. At this time, the gas will be stored at the bottom of the piston 3321. When the gas needs to be discharged, it is only necessary to manually pull the piston 3321 upward so that the piston 3321 is offset from the inlet of the exhaust pipe 3322. At this time, the gas is discharged through the exhaust pipe 3322. Subsequently, it is only necessary to When the piston 3321 is reset, the exhaust pipe 3322 can be sealed. When the cooling water is discharged from the outlet end of the water inlet pipe 32, the water flow causes the turbulent impeller 36 to rotate. The rotating turbulent impeller 36 disturbs the water flow, avoids heat accumulation at the bottom of the impeller mold 111, and improves the impeller injection molding effect. In conjunction with the rotation of the turbulent impeller 36, the driving rod 37 and the air-cooling blade 38 are driven to rotate. In this way, water cooling is achieved while the air-cooling blade 38 cools the mold with air, further improving the cooling molding of the impeller injection mold.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A precision impeller injection mold capable of efficient cooling, comprising a mold base (1), wherein a fixed mold (11) is disposed at the upper end of the mold base (1), a movable mold (12) is movably mounted directly above the fixed mold (11), and an injection hole is disposed at the center of the movable mold (12), characterized in that: A support seat (13) is arranged between the fixed mold (11) and the mold base (1), the inner cavity of the support seat (13) is provided with an air cooling cavity (130), the interior of the fixed mold (11) is provided with an impeller mold (111) and a liquid cooling cavity (112), the inner cavity of the liquid cooling cavity (112) is provided with a turbulent impeller (36), water tank 1 (2) and water tank 2 (21) are respectively arranged on both sides of the fixed mold (11), a circulating cooling mechanism (3) is arranged on the inner side of the water tank 1 (2), the circulating cooling mechanism (3) comprises a water inlet pipe 1 (31), a water storage plate (33) and a water inlet pipe 3 (35), a sealing plate is arranged at one end of the water inlet pipe 1 (31), a water delivery port is opened on the upper inner wall of the sealing plate, the water inlet pipe 1 (31) passes through the side wall of the fixed mold (11), and the inner side of the water inlet pipe 1 (31) is provided with a water inlet pipe 2 (32); An auxiliary liquid guiding telescopic tube (351) is connected through the inner annular surface of the water inlet pipe (35), and an outlet (3510) is provided at the output end of the auxiliary liquid guiding telescopic tube (351). A first sleeve plate (352) and a second sleeve plate (353) are respectively sleeved and mounted on the outer surfaces of both ends of the auxiliary liquid guiding telescopic tube (351). An elastic connecting block (354) is fixedly connected to the inner sides of the first sleeve plate (352) and the second sleeve plate (353). An electromagnetic block (1) is fixedly added to the outer surface of the second sleeve plate (353). The spoiler impeller (36) is composed of six groups of spoiler blades. Electromagnetic blocks (2) are fixedly mounted on three adjacent groups of spoiler blades, and the electromagnetic blocks (2) are electrically connected to the electromagnetic block (1).

2. The precision impeller injection mold capable of efficient cooling according to claim 1, characterized in that: A conical water guide cover (34) is fixedly mounted on the inner side of the output end of the water inlet pipe No. 2 (32); the conical water guide cover (34) is a conical bucket-shaped structure with an opening narrowing inwards; the inner wall of the upper end of the water inlet pipe No. 2 (32) is connected through one end of the water inlet pipe No. 3 (35); the water inlet pipe No. 3 (35) is an annular hollow pipe structure; the output end of the water inlet pipe No. 3 (35) extends to the interior of the water tank No. 1 (2); a circulation pipe (211) is connected through the inner wall of the water tank No. 1 (2); a micro-circulation pump (212) is arranged at one end of the circulation pipe (211); the micro-circulation pump (212) is mounted on the outer side of the water tank No. 1 (2); and the water outlet end of the circulation pipe (211) extends to the inner side of the sealing plate.

3. The precision impeller injection mold capable of efficient cooling according to claim 1, characterized in that: A dredging opening (310) is provided on the inner wall of the lower end of the water inlet pipe (31), and a bottom auxiliary impurity removal component is provided on the inner side of the dredging opening (310), and the bottom auxiliary impurity removal component comprises a dredging square tube (3101), and a filter cone cover (3102) is fixedly connected to the inner surface of the dredging square tube (3101), and the filter cone cover (3102) is a square pyramid structure. The filter cone cover (3102) passes through the upper inner wall of the water tank (2) and extends to the inner side of the water tank (2), and the water tank (2) as a whole is a hollow "concave" structure.

4. The precision impeller injection mold capable of efficient cooling according to claim 3, characterized in that: A pushing block (311) is movably connected to the inner side of the water inlet pipe (31), one end of the pushing block (311) is provided with a slope angle, side grooves (3110) are respectively provided on the inner walls on both sides of the pushing block (311), and a receiving groove (31100) is provided on the inner surface of the pushing block (311).

5. The precision impeller injection mold capable of efficient cooling according to claim 4, characterized in that: A central hole is provided on the central inner wall of the pushing block (311); a buffer assembly is provided at one end of the pushing block (311) away from the slope angle; the buffer assembly comprises an elastic abutting ring plate (312); the outer surface of the elastic abutting ring plate (312) is movably connected to the inner wall of the first water inlet pipe (31); the other end of the elastic abutting ring plate (312) is fixedly connected to a fixing ring (3121); the fixing ring (3121) is fixedly mounted on one end of the second water inlet pipe (32).

6. The precision impeller injection mold capable of efficient cooling according to claim 5, characterized in that: The water storage plate (33) is fixedly mounted on the upper end of the first water inlet pipe (31); an air guide port (3310) and a drop pipe (320) are provided between the water storage plate (33) and the first water inlet pipe (31); the drop pipe (320) passes through the inner walls of the first water inlet pipe (31) and the second water inlet pipe (32); an air guide elbow (331) is fixedly connected to the inner side of the air guide port (3310); a focusing hood (3311) is provided at the other end of the air guide elbow (331); and a filter plate (3312) is provided at the lower end of the focusing hood (3311).

7. The precision impeller injection mold capable of efficient cooling according to claim 6, characterized in that: The upper end of the water storage plate (33) is fixedly connected to a columnar plate (332), the columnar plate (332) being of a hollow columnar structure, the inner side of the columnar plate (332) being movably connected to a piston (3321), the lower end of the piston (3321) being through-connected to the upper end of the focus hood (3311), and an exhaust pipe (3322) being through-connected to an inner wall of one side of the columnar plate (332).

8. The precision impeller injection mold capable of efficient cooling according to claim 1, characterized in that: The center of the spoiler impeller (36) is fixedly connected to a driving rod (37), the driving rod (37) passes through the bottom surface of the fixed mold (11) and the top surface of the support seat (13), and the outer surface of the driving rod (37) is rotatably connected to the inner walls of the fixed mold (11) and the support seat (13), respectively; the lower outer surface of the driving rod (37) is fixedly connected to an air cooling blade (38), the air cooling blade (38) is movably mounted on the inner side of the air cooling chamber (130), the lower end of the air cooling chamber (130) is provided with a heat dissipation port, and the inner wall of the heat dissipation port is provided with a dust shielding plate.

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