Die-casting forming device for cooling water jacket of internal combustion engine

Abstract

The invention relates to the technical field of internal combustion engine cooling water jacket die-casting, in particular to an internal combustion engine cooling water jacket die-casting forming device which comprises a middle die mechanism, a hole chip cleaning mechanism arranged on the middle die mechanism and a cast hole temperature control mechanism arranged in the middle die mechanism. And the middle mold mechanism comprises a protective outer cover and a plastic mold inner pad arranged on the inner side of the protective outer cover. The independent middle die mechanism is arranged between the movable die for casting the cylinder cover and the fixed die for casting the cylinder body, after the movable die descends until the middle die mechanism is pressed and locked on the fixed die, the energy supply assembly is used for conducting high-frequency impact on the combined three dies, at the moment, casting materials input into the double-die cavity can be continuously tamped, and in the tamping period, the casting materials can be continuously tamped; and bubbles in the casting material and gas in the double molds are driven out, so that the casting material, the cylinder cover cast hole part and the cylinder body cast hole part are fully wrapped, and the problem that the hole wall of a subsequently formed water jacket has cold shut or wrinkles due to the influence of the bubbles or air is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of die-casting of internal combustion engine cooling water jackets, and specifically to a die-casting forming device for internal combustion engine cooling water jackets. Background Art

[0002] The water jacket of an internal combustion engine refers to the cavity directly cast in the cylinder block and cylinder head. The coolant circulates therein, and transfers the temperature of the engine combustion chamber and the inner wall of the cylinder block to the coolant through heat conduction, and then is circulated to the radiator by the water pump, and the radiator dissipates heat to the coolant through the flow of external air, and finally dissipates the heat to the atmosphere. Since the water jacket is not a specific structure, it is mainly the cavity for internal cooling of the cylinder head and cylinder block, and conducts the thermal energy in the cylinder head and cylinder block through the cooling cavity to improve the heat dissipation efficiency and working performance of the body. However, there are still certain defects in the casting of the internal cooling cavity of the existing cylinder block and cylinder head. As the casting material is input into the closed double-mode inner cavity, during the continuous injection of the casting material, the air in the double-mode inner cavity will interfere with the entry of the casting material, and then bubbles will appear in the casting material after it enters the double-mode cavity. Due to the interference of these bubbles, cold laps or wrinkles will appear on the inner wall of the water-cooled cavity.

[0003] In view of this, a die-casting forming device for internal combustion engine cooling water jackets is designed to solve the above problems. Summary of the Invention

[0004] The present invention aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] For this reason, the technical solution adopted by the present invention is as follows: A die-casting forming device for internal combustion engine cooling water jackets includes a middle die mechanism, a chip cleaning mechanism arranged on the middle die mechanism, and a casting hole temperature control mechanism arranged in the middle die mechanism; the middle die mechanism includes a protective outer cover and a plastic mold inner pad arranged inside the protective outer cover. A rectangular notch is opened in the middle of the bottom surface of the protective outer cover, and an energy supply component is arranged in the rectangular notch. An insulating pad is arranged at the port of the rectangular notch facing the side wall of the plastic mold inner pad; the energy supply component is used to perform high-frequency impact on the plastic mold inner pad, so that the shock wave on the plastic mold inner pad radiates to the movable die and the fixed die until the casting material injected into the movable die and the fixed die is gradually compacted; the energy supply component includes a sealing bottom plate installed at the bottom of the rectangular notch, a motor installed in two main clamping plates on the top of the sealing bottom plate, and a limiting frame fixedly installed on the top surface of the sealing bottom plate and close to one side of the insulating pad; a runner is installed on the transmission shaft in the motor, a combined pull rod is movably installed on the runner, and a stud penetrating into the hole inside the insulating pad is arranged on the combined pull rod; the combined pull rod is composed of a long pull rod and a short pull rod. A chute is opened inside the short pull rod, and the limiting frame is movably installed in the chute to provide limit for the reciprocating extension of the combined pull rod.

[0006] In a preferred embodiment, the present invention can be further configured as follows: cylindrical holes are uniformly formed at the top of the mold inner pad, and insertion holes are formed around the periphery of the cylindrical holes. Columnar ends are uniformly arranged at the bottom of the mold inner pad. The casting hole temperature control mechanism includes a reflux assembly disposed in the cylindrical hole and a double-hole heat exchange assembly disposed in the insertion hole. The reflux assembly includes a heat insulation chamber fixedly installed in the cylindrical hole, a partition pad installed in the middle of the inner cavity of the heat insulation chamber, a middle transmission end pipe installed inside the partition pad, and four liquid separation plates fixedly installed on the outer wall of the middle transmission end pipe. The four liquid separation plates are installed on the top of the partition pad. A core pipe is installed in the middle transmission end pipe. A concave hole is formed in the middle of the middle transmission end pipe. A hole groove is formed at the top of the middle transmission end pipe. A hot liquid return pipe is connected in the concave hole. A cold liquid return pipe is installed at the bottom of the core pipe. The cold liquid return pipe is adapted to penetrate to the outside of the middle transmission end pipe and is located directly below the hot liquid return pipe. The double-hole heat exchange assembly is a mold for casting the water jacket cavity structure in the cylinder head and the cylinder block.

[0007] In a preferred embodiment, the present invention can be further configured as follows: the chip cleaning mechanism includes a hydraulic component, an end head installed on the hydraulic sub-rod in the hydraulic component, two traction frames movably installed on the end head, a first chuck movably installed on one of the traction frames, and a second chuck movably installed on the other traction frame. The other end of the first chuck is fixedly installed with a top scraping plate, and the top scraping plate is attached to the top surface of the mold inner pad. The other end of the second chuck is fixedly installed with a bottom scraping plate, and the bottom scraping plate is attached to the bottom surface of the mold inner pad. The top scraping plate and the bottom scraping plate are used to scrape the residue on the double-hole heat exchange component.

[0008] In a preferred embodiment, the present invention can be further configured as follows: the double-hole heat exchange assembly includes a shield installed inside the insertion hole, cold liquid end pipes and hot liquid end pipes symmetrically distributed inside the shield, a cylinder block casting hole part fixedly installed at the bottom of the shield, a second flow dividing plate fixedly installed in the middle of the inner cavity of the cylinder block casting hole part, a cylinder head casting hole part fixedly installed at the top of the shield, and a first flow dividing plate fixedly installed in the middle of the inner cavity of the cylinder head casting hole part. The ends of the cold liquid end pipe and the hot liquid end pipe away from the shield are connected to the inside of the heat insulation chamber. The double-chamber structures inside the shield are respectively communicated with the double-chamber structures in the cylinder block casting hole part and the cylinder head casting hole part, and are used for transferring the coolant and conducting the heat energy in the casting material.

[0009] In a preferred example, the present invention can be further configured as follows: the middle mold mechanism further includes a heat dissipation plate installed at the outer port of the rectangular notch and a liquid changing component installed inside the protective outer cover; Two groups of auxiliary clamping plates are installed on the inner side of the heat dissipation plate, and the two groups of auxiliary clamping plates are used to fix the motor; The liquid changing component includes a cold liquid transfer pipe and a cold liquid outer pipe stacked vertically, and a plurality of conduits are uniformly distributed inside the cold liquid transfer pipe and the hot liquid transfer pipe; The cold liquid transfer pipe penetrates to the outer end of the protective outer cover and is connected to the cold liquid outer pipe; The hot liquid transfer pipe penetrates to the outer end of the protective outer cover and is connected to the hot liquid outer pipe.

[0010] In a preferred example, the present invention can be further configured as follows: two groups of clamps are fixedly installed on the outer side of the protective outer cover, the hydraulic component is fixedly installed in the two groups of clamps, and the horizontally placed hydraulic component is parallel to the side of the protective outer cover.

[0011] In a preferred example, the present invention can be further configured as follows: the protective outer cover is integrally in a U-shaped structure, and two symmetrically distributed T-shaped sliders are provided on the inner sides of the two end plates of the protective outer cover, and vertical grooves adapted to the T-shaped sliders are provided at both ends of the plastic mold inner pad facing the two end plates.

[0012] In a preferred example, the present invention can be further configured as follows: circular descaling holes adapted to a plurality of cylinder head casting holes are provided inside the top scraping plate; Arc-shaped descaling holes adapted to a plurality of cylinder block casting holes are provided inside the bottom scraping plate, and a groove adapted to the cylindrical end is provided at the center line of the bottom scraping plate.

[0013] In a preferred example, the present invention can be further configured as follows: heat insulation coatings are applied to the surfaces of the heat insulation chamber, the middle transmission end pipe, the four liquid separation plates and the separation pad, and symmetric holes are provided in the middle groove and the top hole groove of the middle transmission end pipe. The holes in the groove are used to provide a transfer channel for the liquid after heat exchange; The holes in the hole groove are used to provide a conveying channel for the coolant.

[0014] In a preferred example, the present invention can be further configured as follows: a liquid infusion gap is reserved between the top of the first flow dividing plate and the top of the inner cavity of the cylinder head casting hole; Two drainage grooves are provided at the bottom end of the second flow dividing plate.

[0015] By adopting the above technical solutions, the beneficial effects obtained by the present invention are: 1. The present invention sets up an independent middle mold mechanism between the movable mold for casting the cylinder head and the fixed mold for casting the cylinder block. After the movable mold descends until the middle mold mechanism is pressed and locked onto the fixed mold, the combined three molds are subjected to high-frequency impact by the energy supply component. At this time, the casting material input into the double mold cavity can be continuously tamped. During the tamping process, the air bubbles inside the casting material and the gas inside the double mold are expelled, thereby ensuring that the casting material fully wraps the cylinder head casting hole part and the cylinder block casting hole part, and further avoiding the problems of cold shut or wrinkles on the water jacket hole wall caused by the influence of bubbles or air during subsequent molding.

[0016] 2. The present invention additionally sets up a middle mold mechanism between the movable mold and the fixed mold. According to the path requirements of the cooling water channels in the cylinder block and the cylinder head, by setting casting hole molds in the middle mold mechanism to adapt to the structures of the water channels in the cylinder head and the cylinder block, the adaptation requirements of the special-shaped water channels in the cylinder block and the cylinder head are met, thereby avoiding the overly complex structures in the movable mold and the fixed mold from hindering the input of the casting material and the subsequent demolding of the casting.

[0017] 3. The present invention sets up a casting hole temperature control mechanism in the middle mold mechanism. After the coolant circulates and is transferred inside the casting hole temperature control mechanism, the two casting hole parts extending into the cylinder head and the cylinder block can transfer the coolant in an orderly manner until the casting material located outside the two casting hole parts and being tamped is quickly cooled down for the first time, thereby realizing cooling outward with the water jacket casting hole as the center, and thus improving the smoothness and integrity of the water jacket hole wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the die-casting schematic diagram of the present invention; Figure 2 is the bottom view schematic diagram of the present invention; Figure 3 is the exploded schematic diagram of the chip cleaning mechanism of the present invention; Figure 4 is the schematic diagram of the middle mold mechanism of the present invention; Figure 5 is the present invention Figure 4 's exploded schematic diagram; Figure 6 is the schematic diagram of the energy supply component of the present invention; Figure 7 is the partial schematic diagram of the present invention; Figure 8 is the exploded schematic diagram of the casting hole temperature control mechanism of the present invention; Figure 9 is the schematic diagram of the reflux component of the present invention; Figure 10 is the exploded schematic diagram of the double-hole heat exchange component of the present invention; Figure 11 is the present invention Figure 10 's partial bottom view schematic diagram.

[0019] Reference numerals: 100, middle mold mechanism; 110, protective outer cover; 120, plastic mold inner pad; 130, fixture; 140, heat dissipation plate; 150, liquid changing assembly; 151, cold liquid transfer pipe; 152, cold liquid outer pipe; 153, hot liquid transfer pipe; 154, hot liquid outer pipe; 160, heat insulation pad; 170, energy supply assembly; 171, sealing bottom plate; 172, motor; 173, runner; 174, combined pull rod; 175, stud; 176, limit bracket; 200, hole chip cleaning mechanism; 210, hydraulic component; 220, end; 230, traction frame; 240, first chuck; 250, top scraping plate; 260, second chuck; 270, bottom scraping plate; 300, casting hole temperature control mechanism; 310, reflux assembly; 311, heat insulation bin; 312, middle transfer end pipe; 313, liquid separation plate; 314, separation pad; 315, core pipe; 320, cold liquid return pipe; 330, hot liquid return pipe; 340, double-hole heat exchange component; 341, protective cover; 342, cold liquid end pipe; 343, hot liquid end pipe; 344, cylinder head casting hole part; 345, first flow dividing plate; 346, cylinder block casting hole part; 347, second flow dividing plate. Detailed implementation manners

[0020] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in combination with the specific implementation manners and with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0021] It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention.

[0022] The following describes a die-casting forming device for an internal combustion engine cooling water jacket provided by some embodiments of the present invention with reference to the accompanying drawings.

[0023] Embodiment 1: Combined with Figures 1 to 11 As shown, a die-casting forming device for an internal combustion engine cooling water jacket provided by the present invention includes a middle mold mechanism 100, a hole chip cleaning mechanism 200 provided on the middle mold mechanism 100, and a casting hole temperature control mechanism 300 provided in the middle mold mechanism 100. The middle mold mechanism 100 is arranged between a movable mold and a fixed mold, and is used to provide an independent mold platform for the casting of the water jacket cavity in the double mold, and at the same time continuously tamp the casting material in the double mold. The hole chip cleaning mechanism 200 is used to remove scale and clean the casting water jacket cavity mold, and the casting hole temperature control mechanism 300 is used to quickly cool the water jacket cavity cast in the cylinder head and the cylinder block.

[0024] The middle mold mechanism 100 includes a protective outer cover 110 and a plastic mold inner pad 120 arranged inside the protective outer cover 110. A rectangular notch is opened in the middle of the bottom surface of the protective outer cover 110, and an energy supply component 170 is arranged in the rectangular notch. A heat insulation pad 160 is arranged at the port of the rectangular notch facing the side wall of the plastic mold inner pad 120, a heat dissipation plate 140 installed at the outer port of the rectangular notch, and a liquid exchange component 150 installed inside the protective outer cover 110; The liquid exchange component 150 includes a cold liquid transfer pipe 151 and a cold liquid outer pipe 152 stacked vertically, and a plurality of conduits are evenly distributed inside both the cold liquid transfer pipe 151 and the hot liquid transfer pipe 153; The cold liquid transfer pipe 151 penetrates to the outer end of the protective outer cover 110 and is connected to the cold liquid outer pipe 152; The hot liquid transfer pipe 153 penetrates to the outer end of the protective outer cover 110 and is connected to the hot liquid outer pipe 154; The energy supply component 170 is used to perform high-frequency impact on the plastic mold inner pad 120, so that the shock wave on the plastic mold inner pad 120 radiates to the movable mold and the fixed mold until the casting material injected into the movable mold and the fixed mold is gradually compacted; The energy supply component 170 includes a sealing bottom plate 171 installed at the bottom of the rectangular notch, a motor 172 installed in two groups of main clamping plates on the top of the sealing bottom plate 171, and a limiting frame 176 fixedly installed on the top surface of the sealing bottom plate 171 and close to the heat insulation pad 160; A runner 173 is installed on the transmission shaft in the motor 172, a combined pull rod 174 is movably installed on the runner 173, and a column head 175 penetrating into the internal hole of the heat insulation pad 160 is arranged on the combined pull rod 174; The combined pull rod 174 is composed of a long pull rod and a short pull rod. A chute is opened inside the short pull rod, and the limiting frame 176 is movably installed in the chute to provide limit for the reciprocating extension of the combined pull rod 174; Two groups of secondary clamping plates are installed on the inner side of the heat dissipation plate 140, and the two groups of secondary clamping plates are used to fix the motor 172; The overall shape of the protective outer cover 110 is a U-shaped structure, and two symmetrically distributed T-shaped sliders are arranged on the inner sides of the two end plates of the protective outer cover 110. Vertical grooves adapted to the T-shaped sliders are opened at both ends of the plastic mold inner pad 120 facing the two end plates.

[0025] After the movable mold is pushed downward by the hydraulic system, the movable mold will actively exert a downward thrust on the plastic mold inner pad 120 and the protective outer cover 110 until the bottom surfaces of the plastic mold inner pad 120 and the protective outer cover 110 are in close contact and pressed against the top port of the fixed mold. At this time, the two molds can cooperate with the combined plastic mold inner pad 120 and the protective outer cover 110 to form a closed double-mold structure; As the casting material is transferred along the double-mode casting hole, the final casting material will enter the closed cavity of the double mode. After the motor 172 runs, the drive shaft inside it will drive the runner 173. At this time, the runner 173 will push the long pull rod to perform eccentric motion, and the short pull rod will reciprocally extend along the inside of the rectangular notch under the limit constraint of the limit frame 176. Finally, the stud 175 installed on the short pull rod can impact the outer wall of the plastic mold inner pad 120 through the hole of the heat insulation pad 160. Then, the vibration afterwaves generated by the impact will radiate to the closed double mode. At this time, the casting material in the double mode can be continuously tamped, so that the bubbles and voids in the closed double mode can be filled with the casting material, and at the same time, the problem of cold shuts or wrinkles on the inner wall of the water jacket holes in the subsequent cylinder block and cylinder head can be avoided.

[0026] Embodiment 2: Combined with Figures 3 to 11 As shown, on the basis of Embodiment 1, the top of the plastic mold inner pad 120 is provided with evenly distributed cylindrical holes and jacks arranged around the cylindrical holes, and the bottom of the plastic mold inner pad 120 is provided with evenly distributed cylindrical ends.

[0027] Preferably, the plastic mold inner pad 120 and the protective outer cover 110 are in an activity assembly structure. When it is necessary to select the inner cavities of the movable mold and the fixed mold with different structures, by replacing the plastic mold inner pad 120 and setting different layouts of multiple casting hole temperature control mechanisms 300 inside the replaced plastic mold inner pad 120, the inner cavity structures of the movable mold and the fixed mold with different models can be quickly adapted.

[0028] The casting hole temperature control mechanism 300 includes a reflux assembly 310 arranged in the cylindrical hole and a double-hole heat exchange assembly 340 arranged in the jack; The reflux assembly 310 includes a heat insulation bin 311 fixedly installed in the cylindrical hole, a partition pad 314 installed in the middle of the inner cavity of the heat insulation bin 311, a middle transfer end pipe 312 installed inside the partition pad 314, and four liquid separation plates 313 fixedly installed on the outer wall of the middle transfer end pipe 312, and the four liquid separation plates 313 are installed on the top of the partition pad 314; A core pipe 315 is installed in the middle transfer end pipe 312, and a concave hole is opened in the middle of the middle transfer end pipe 312. A hole groove is opened at the top of the middle transfer end pipe 312, and a hot liquid return pipe 330 is connected in the concave hole; A cold liquid return pipe 320 is installed at the bottom of the core pipe 315, and the cold liquid return pipe 320 is adapted to penetrate to the outside of the middle transfer end pipe 312 and is located directly below the hot liquid return pipe 330; The surfaces of the heat insulation bin 311, the middle transfer end pipe 312, the four liquid separation plates 313 and the partition pad 314 are all coated with a heat insulation coating, and symmetrical holes are opened in the groove in the middle of the middle transfer end pipe 312 and the hole groove at the top. The holes in the groove are used to provide a transfer channel for the liquid after heat exchange; The holes in the hole groove are used to provide a conveying channel for the coolant.

[0029] Preferably, the end faces of the four liquid separation plates 313 away from the middle conveying end pipe 312 are fixed on the inner wall of the heat insulation chamber 311 by welding, and the outer side edge of the separation pad 314 is welded on the middle inner wall of the heat insulation chamber 311, and the bottom cavity formed by the separation pad 314 and the heat insulation chamber 311 is used to prevent the coolant from accumulating.

[0030] The double-hole heat exchange component 340 is a mold for casting the water jacket cavity structures in the cylinder head and the cylinder block; The double-hole heat exchange component 340 includes a shield 341 installed inside the socket, cold liquid end pipes 342 and hot liquid end pipes 343 symmetrically distributed inside the shield 341, a cylinder block casting hole part 346 fixedly installed at the bottom of the shield 341, a second flow dividing plate 347 fixedly installed in the middle of the inner cavity of the cylinder block casting hole part 346, a cylinder head casting hole part 344 fixedly installed at the top of the shield 341, and a first flow dividing plate 345 fixedly installed in the middle of the inner cavity of the cylinder head casting hole part 344; One ends of the cold liquid end pipes 342 and the hot liquid end pipes 343 away from the shield 341 are connected to the inside of the heat insulation chamber 311; The double-chamber structures inside the shield 341 are respectively communicated with the double-chamber structures inside the cylinder block casting hole part 346 and the cylinder head casting hole part 344, and are used to transfer the coolant and conduct the heat energy in the casting material.

[0031] Preferably, the top end of the shield 341 is flush with the top surface of the plastic mold inner pad 120, and the bottom end of the first flow dividing plate 345 is welded to the central part of the top surface of the shield 341, and the top end of the second flow dividing plate 347 is welded to the central part of the bottom surface of the shield 341; When the cold liquid end pipe 342 inputs the coolant into one cavity inside the shield 341, the coolant will enter the inside of the cylinder head casting hole part 344 and the cylinder block casting hole part 346 from one cavity inside the shield 341, and finally flow back into the inside of the hot liquid end pipe 343. At this time, the cylinder head casting hole part 344 and the cylinder block casting hole part 346 can provide a casting hole carrier for quickly cooling the cooling hole walls in the cylinder head casting and the cylinder block casting, so as to improve the smoothness of the water jacket hole walls.

[0032] Embodiment 3: Combined with Figures 3 to 11 As shown, on the basis of Embodiment 1, the chip cleaning mechanism 200 includes a hydraulic component 210, a head 220 installed on the hydraulic sub-rod inside the hydraulic component 210, two traction frames 230 movably installed on the head 220, a first chuck 240 movably installed on one of the traction frames 230, and a second chuck 260 movably installed on the other traction frame 230; A top scraper 250 is fixedly mounted on the other end of the first clamp 240, and the top scraper 250 is attached to the top surface of the mold inner pad 120; The other end of the second clamp 260 is fixedly mounted with a bottom scraper 270, and the bottom scraper 270 is attached to the bottom surface of the mold inner pad 120, and the top scraper 250 and the bottom scraper 270 are used to scrape the residue on the double-hole heat exchange component 340; Two sets of clamps 130 are fixedly installed on the outer side of the protective cover 110, and the hydraulic components 210 are fixedly installed in the two sets of clamps 130, and the hydraulic components 210 are parallel to the side of the protective cover 110 after being placed horizontally; The top scraper 250 is provided with circular scraping holes adapted to fit into a plurality of cylinder head castings 344; The bottom scraper 270 has arc-shaped scraping holes adapted to fit the multiple cylinder casting holes 346, and the center line of the bottom scraper 270 has a groove adapted to fit the columnar end. A gap for liquid infusion is reserved between the top of the first diverter plate 345 and the top of the inner cavity of the cylinder head casting hole 344; Two drainage grooves are formed at the bottom end of the second diverter plate 347 .

[0033] Preferably, according to the selected lengths of the cylinder head casting hole 344 and the cylinder body casting hole 346, the lengths of the two traction frames 230 can be set according to the highest distance between the top scraper 250 and the bottom scraper 270 extending outwards, wherein the two traction frames 230 and the end head 220 form a triangular structure; By setting the hydraulic component 210, when the hydraulic component 210 is running, its internal hydraulic sub-rod will push the end head 220, and the two traction frames 230 movably installed on the end head 220 will apply traction to the first clamp 240 and the top scraper 250, and the top scraper 250 arranged on the top of the mold inner pad 120 and the bottom scraper 270 arranged at the bottom of the mold inner pad 120 will be pressed and extend outward along the cylinder head casting hole part 344 and the cylinder body casting hole part 346 respectively. As the top scraper 250 and the bottom scraper 270 continue to extend outward, the waste materials attached to the surfaces of the cylinder head casting hole part 344 and the cylinder body casting hole part 346 can be scraped off to avoid interference with the molding of subsequent castings.

[0034] The working principle and use process of the present invention are as follows: the device is pre-arranged between the movable mold and the fixed mold of the injection molding cylinder head and cylinder body, so that the cylinder head casting hole part 344 faces the movable mold of the injection molding cylinder head, and the cylinder body casting hole part 346 faces the fixed mold of the injection molding cylinder body; When the movable mold descends along the uniformly distributed multiple cylinder head casting holes 344 until the uniformly distributed multiple cylinder head casting holes 344 are completely inserted into the movable mold, the entire middle mold mechanism 100 that continues to descend under further pressure from the movable mold will adapt to the fixed mold until the device is clamped by the adaptation of the movable mold and the fixed mold. Then, the casting material can be input from the material hole of the double mold. As the casting material continues to be injected into the double mold, the motor 172 can be started. At this time, the transmission shaft in the motor 172 will drive the runner 173 to rotate, and the rotation of the runner 173 will also drive the combined pull rod 174 to extend horizontally and reciprocally along the limit frame 176. The stud 175 provided on the combined pull rod 174 can perform high-frequency vibration knocking on the outer wall of the plastic mold inner pad 120 through the holes of the heat insulation pad 160. At this time, the plastic mold inner pad 120 can dredge the air bubbles and other voids accumulated in the casting material between the end faces of the double mold until the casting material completely fills the mold cavity of the double mold; When the casting material stops being input into the double mold, the coolant is input into the interior of the coolant transfer pipe 151 by the coolant outer pipe 152. The multiple pipes provided inside the coolant transfer pipe 151 will input the coolant into the interiors of the multiple coolant return pipes 320 and the core pipe 315. Finally, the coolant will enter the hole groove at the top of the middle transfer pipe 312 from the core pipe 315. Then, the coolant in the hole groove will be input into the interiors of the four coolant end pipes 342 from two of the fan-shaped cavities. The coolant input from the coolant end pipe 342 can enter a separated cavity inside the cylinder head casting hole 344 through a cavity inside the shield 341. Since the first flow dividing plate 345 divides the inner cavity of the cylinder head casting hole 344 into a double cavity, the flowing coolant will be transferred from the other cavity of the cylinder head casting hole 344 to another cavity inside the shield 341. At the same time, the coolant will also flow back along the cavity separated by the second flow dividing plate 347 at 348. Along with the delivery of the heat-exchanged coolant by the hot liquid outer pipe 154, the heat-exchanged liquid flowing into the other cavity at 348 can enter the other two fan-shaped cavities inside the return assembly 310 through the hot liquid return pipe 330. Finally, the heat-exchanged liquid will enter the hot liquid transfer pipe 153 and the hot liquid outer pipe 154 along the hot liquid return pipe 330, thereby realizing the rapid solidification of the water jacket hole walls in the cylinder block casting and the cylinder head casting to improve the smoothness and regularity of the water jacket hole walls.

[0035] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A die-casting device for a cooling water jacket of an internal combustion engine, comprising a middle die mechanism (100), characterized in that: It also includes a hole chip cleaning mechanism (200) arranged on the middle mold mechanism (100) and a casting hole temperature control mechanism (300) arranged in the middle mold mechanism (100); The middle mold mechanism (100) comprises a protective outer cover (110) and a mold inner pad (120) arranged on the inner side of the protective outer cover (110); the top of the mold inner pad (120) is provided with evenly distributed cylindrical holes and jacks arranged around the cylindrical holes, and the bottom of the mold inner pad (120) is provided with evenly distributed cylindrical ends; a rectangular notch is provided in the middle of the bottom surface of the protective outer cover (110), and an energy supply component (170) is arranged in the rectangular notch; and a heat insulation pad (160) is arranged in a port of the rectangular notch facing the side wall of the mold inner pad (120); The energy supply component (170) is used to perform high-frequency impact on the mold inner pad (120) to cause the shock wave on the mold inner pad (120) to radiate to the movable mold and the fixed mold until the castings injected into the movable mold and the fixed mold are gradually compacted.

2. The die-casting molding device for a cooling water jacket of an internal combustion engine according to claim 1, characterized in that: The energy supply assembly (170) comprises a sealing bottom plate (171) installed at the bottom of the rectangular notch, a motor (172) installed in two sets of main clamping plates at the top of the sealing bottom plate (171), and a limiting frame (176) fixedly installed on the top surface of the sealing bottom plate (171) and close to one side of the thermal insulation pad (160); A rotating wheel (173) is installed on the transmission shaft inside the motor (172), a combined pull rod (174) is movably installed on the rotating wheel (173), and a column head (175) is provided on the combined pull rod (174) that penetrates into the internal hole of the thermal insulation pad (160); The combined pull rod (174) is composed of a long pull rod and a short pull rod. A sliding groove is provided inside the short pull rod, and a limit frame (176) is movably installed in the sliding groove to provide a limit for the reciprocating extension of the combined pull rod (174).

3. The die-casting device for a cooling water jacket of an internal combustion engine according to claim 1, characterized in that: The middle mold mechanism (100) further comprises a heat dissipation plate (140) installed in a port outside the rectangular notch, and a liquid replacement component (150) installed inside the protective outer cover (110); Two sets of auxiliary clamping plates are installed on the inner side of the heat dissipation plate (140), and the two sets of auxiliary clamping plates are used to fix the motor (172); The liquid exchange assembly (150) comprises a cold liquid transfer pipe (151) and a cold liquid outer pipe (152) stacked in a vertical direction, and a plurality of evenly distributed conduits are provided on the inner sides of the cold liquid transfer pipe (151) and the hot liquid transfer pipe (153); The cold liquid transfer pipe (151) passes through the outer end of the protective outer cover (110) and is connected to a cold liquid outer pipe (152); The hot liquid transfer pipe (153) passes through the outer end of the protective outer cover (110) and is connected to a hot liquid outer pipe (154).

4. The die-casting device for a cooling water jacket of an internal combustion engine according to claim 1, characterized in that: The casting hole temperature control mechanism (300) comprises a reflux component (310) arranged in the cylindrical hole and a double-hole heat exchange component (340) arranged in the insertion hole; The reflux assembly (310) comprises a heat-insulating chamber (311) fixedly mounted in a cylindrical hole, a separation pad (314) mounted in the middle of the inner cavity of the heat-insulating chamber (311), a middle-transmission end pipe (312) mounted inside the separation pad (314), and four liquid-isolating plates (313) fixedly mounted on the outer wall of the middle-transmission end pipe (312), wherein the four liquid-isolating plates (313) are mounted on the top of the separation pad (314); A core tube (315) is installed in the middle delivery end tube (312), a concave hole is opened in the middle of the middle delivery end tube (312), a hole groove is opened at the top of the middle delivery end tube (312), and a hot liquid return pipe (330) is connected to the concave hole; A cold liquid return pipe (320) is installed at the bottom of the core pipe (315), and the cold liquid return pipe (320) is adapted to penetrate the outside of the middle transport end pipe (312) and is located directly below the hot liquid return pipe (330); The double-hole heat exchange component (340) is a mold for casting the water jacket cavity structure in the cylinder head and the cylinder body.

5. The die-casting device for a cooling water jacket of an internal combustion engine according to claim 4, characterized in that: The double-hole heat exchange component (340) comprises a shield (341) installed inside the jack, a cold liquid end pipe (342) and a hot liquid end pipe (343) arranged inside the shield (341) and symmetrically distributed, a cylinder body casting hole component (346) fixedly installed at the bottom of the shield (341), a second diverter plate (347) fixedly installed in the middle of the inner cavity of the cylinder body casting hole component (346), a cylinder head casting hole component (344) fixedly installed at the top of the shield (341), and a first diverter plate (345) fixedly installed in the middle of the inner cavity of the cylinder head casting hole component (344); One end of the cold liquid end pipe (342) and the hot liquid end pipe (343) away from the shield (341) is connected to the interior of the heat insulation chamber (311); The double-cavity structure inside the shield (341) is respectively connected to the double-cavity structures inside the cylinder block casting hole component (346) and the cylinder head casting hole component (344) for transferring cooling liquid and conducting heat energy in the casting.

6. The die-casting device for a cooling water jacket of an internal combustion engine according to claim 4, characterized in that: The surfaces of the heat-insulating bin (311), the middle delivery end pipe (312), the four liquid isolation plates (313) and the separation pad (314) are all coated with a heat-insulating coating, and the groove in the middle of the middle delivery end pipe (312) and the hole groove at the top are both provided with symmetrical holes, and the holes in the groove are used to provide a transfer channel for the liquid after heat exchange; The holes in the slot are used to provide a delivery channel for the coolant.

7. The die-casting device for a cooling water jacket of an internal combustion engine according to claim 5, characterized in that: A gap for liquid infusion is reserved between the top of the first diverter plate (345) and the top of the inner cavity of the cylinder head casting hole component (344); Two drainage grooves are provided at the bottom end of the second diverter plate (347).

8. The die-casting device for a cooling water jacket of an internal combustion engine according to claim 1, characterized in that: The hole chip cleaning mechanism (200) comprises a hydraulic component (210), an end head (220) mounted on a hydraulic sub-rod in the hydraulic component (210), two traction frames (230) movably mounted on the end head (220), a first clamp (240) movably mounted on one of the traction frames (230), and a second clamp (260) movably mounted on the other traction frame (230); A top scraper (250) is fixedly mounted on the other end of the first clamp (240), and the top scraper (250) is attached to the top surface of the mold inner pad (120); A bottom scraper (270) is fixedly mounted on the other end of the second chuck (260), and the bottom scraper (270) is attached to the bottom surface of the mold inner pad (120), and the top scraper (250) and the bottom scraper (270) are used to scrape off residues on the double-hole heat exchange component (340).

9. The die-casting device for a cooling water jacket of an internal combustion engine according to claim 8, characterized in that: Two groups of clamps (130) are fixedly mounted on the outer side of the protective outer cover (110), and the hydraulic component (210) is fixedly mounted inside the two groups of clamps (130), and the hydraulic component (210) is placed horizontally so as to be parallel to the side of the protective outer cover (110); The protective outer cover (110) is of a U-shaped structure as a whole, and two symmetrically distributed T-shaped sliding blocks are provided on the inner sides of the two end plates of the protective outer cover (110), and the mold inner pad (120) is provided with vertical grooves adapted to fit the T-shaped sliding blocks towards both ends of the two end plates.

10. The die-casting device for a cooling water jacket of an internal combustion engine according to claim 8, characterized in that: The top scraper (250) is provided with circular scraping holes adapted to fit a plurality of cylinder head casting holes (344) inside. The bottom scraper (270) is provided with arc-shaped scale scraping holes adapted to fit a plurality of cylinder casting holes (346) inside, and a groove adapted to fit a columnar end is provided at the center line of the bottom scraper (270).

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