An internal combustion engine cooling jacket die casting device

Abstract

The application relates to the field of internal combustion engine cooling jacket die casting technology, in particular to an internal combustion engine cooling jacket die casting forming device, which comprises a middle die mechanism, a hole scrap 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 comprises a protective outer cover and a plastic mold inner pad arranged on the inner side of the protective outer cover. By arranging the independent middle die mechanism between the movable mold for casting the cylinder head and the fixed mold for casting the cylinder body, when the movable mold is lowered until the middle die mechanism is pressed and locked on the fixed mold, the combined three molds are subjected to high-frequency impact by an energy supply assembly, at this time, the casting material in the double mold cavity can be continuously rammed, during the ramming period, the bubbles in the casting material and the gas in the double mold are driven out, so that the casting material is fully wrapped with the cylinder head casting hole part and the cylinder body casting hole part, and the problem of cold separation or wrinkle of the water jacket hole wall in subsequent forming caused by bubbles or air is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of die casting of cooling water jacket of internal combustion engine, and particularly relates to a die casting forming device for cooling water jacket of internal combustion engine. BACKGROUND

[0002] The water jacket of internal combustion engine refers to a cavity directly cast in the cylinder block and cylinder head, in which the cooling liquid circulates, and the temperature of the engine combustion chamber and the inner wall of the cylinder block is transferred to the cooling liquid through heat conduction, and then the cooling liquid is circulated to the radiator by the water pump, and then the radiator dissipates heat to the cooling liquid through the flow of external air, and finally the heat is dissipated to the atmosphere.

[0003] Since the water jacket is not a specific structure, it is mainly a cavity for cooling the inside of the cylinder head and the cylinder block, and the heat energy in the cylinder head and the cylinder block is conducted through the cooling cavity to improve the heat dissipation efficiency and working performance of the engine body. However, there are still some defects in the casting of the internal cooling cavity of the existing cylinder block and cylinder head. With the input of the casting material to the closed double-mold inner cavity, the air in the double-mold inner cavity will interfere with the entry of the casting material during the continuous injection of the casting material, and then the casting material will have air bubbles after entering the double-mold cavity. Under the interference of these air bubbles, the inner wall of the water cooling cavity will have cold separation or wrinkles.

[0004] In view of this, a die casting forming device for cooling water jacket of internal combustion engine is designed to solve the above problems. SUMMARY

[0005] The present application aims to solve one of the technical problems in the prior art or related art.

[0006] To this end, the technical solution adopted by the present application is as follows:

[0007] The application discloses an internal combustion engine cooling jacket die-casting forming device which comprises a middle die mechanism, a hole debris 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 comprises a protective cover and a mold inner pad arranged on the inner side of the protective cover; a rectangular notch is formed in the middle part of the bottom surface of the protective cover, a power supply assembly is arranged in the rectangular notch, and a heat insulation pad is arranged in the port of the rectangular notch towards the sidewall of the mold inner pad; the power supply assembly is used for high-frequency impacting the mold inner pad so as to make the shock wave on the mold inner pad radiate 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 power supply assembly comprises a sealing bottom plate arranged on the bottom of the rectangular notch, a motor arranged on the two main clamping plates arranged on the top of the sealing bottom plate, and a limiting frame fixedly arranged on one side of the top surface of the sealing bottom plate and close to the heat insulation pad; a rotating wheel is arranged on the transmission shaft in the motor, a combined pull rod is movably arranged on the rotating wheel, and a stud is arranged on the combined pull rod and penetrates into the inner hole of the heat insulation pad; the combined pull rod is composed of a long pull rod and a short pull rod; a sliding groove is formed in the inner side of the short pull rod, and the limiting frame is movably arranged in the sliding groove and used for limiting the reciprocating expansion of the combined pull rod.

[0008] In a preferred example, the top of the mold inner pad is provided with uniformly distributed cylindrical holes and jacks around the cylindrical holes, and the bottom of the mold inner pad is provided with uniformly distributed cylindrical end heads.

[0009] The casting hole temperature control mechanism comprises a backflow assembly arranged in the cylindrical hole and a double-hole heat exchange assembly arranged in the jack.

[0010] The backflow assembly comprises a heat insulation bin fixedly arranged in the cylindrical hole, a partition pad arranged in the middle part of the inner cavity of the heat insulation bin, a middle delivery end pipe arranged in the inner part of the partition pad, four liquid separation plates fixedly arranged on the outer wall of the middle delivery end pipe, and the four liquid separation plates are arranged on the top of the partition pad.

[0011] The middle delivery end pipe is provided with a core pipe, a recess is formed in the middle part of the middle delivery end pipe, a hole groove is formed in the top of the middle delivery end pipe, and a hot liquid backflow pipe is connected in the recess.

[0012] The bottom of the core pipe is provided with a cold liquid backflow pipe, the cold liquid backflow pipe penetrates through the outside of the middle delivery end pipe and is located directly below the hot liquid backflow pipe.

[0013] The double-hole heat exchange assembly is a mold for casting the water jacket cavity structure of the cylinder head and the cylinder body.

[0014] In a preferred example, the hole debris cleaning mechanism comprises a hydraulic part, an end head arranged on the hydraulic sub-rod in the hydraulic part, two traction frames movably arranged on the end head, a first chuck movably arranged on one of the traction frames, and a second chuck movably arranged on the other traction frame.

[0015] The other end of the first clamp is fixedly installed with a top scraping plate, and the top scraping plate is attached to the top surface of the mold inner pad;

[0016] The other end of the second clamp is fixedly installed with a bottom scraping plate, and the bottom scraping plate is attached to the bottom surface of the mold inner pad, and the top scraping plate and the bottom scraping plate are used to scrape the residues on the double-hole heat exchange assembly.

[0017] In a preferred example, the double-hole heat exchange assembly includes a shield installed inside the insertion hole, cold liquid end pipes and hot liquid end pipes symmetrically arranged inside the shield, a cylinder body cast hole member fixedly installed at the bottom of the shield, a second flow distribution plate fixedly installed in the middle of the inner cavity of the cylinder body cast hole member, a cylinder cover cast hole member fixedly installed at the top of the shield, and a first flow distribution plate fixedly installed in the middle of the inner cavity of the cylinder cover cast hole member.

[0018] The cold liquid end pipes and the hot liquid end pipes are connected to the inside of the heat insulation bin at the end away from the shield.

[0019] The double-cavity structure inside the shield is in communication with the double-cavity structures inside the cylinder body cast hole member and the cylinder cover cast hole member, and is used to transfer cooling liquid and conduct heat energy in the casting material.

[0020] In a preferred example, the mold mechanism further includes a heat dissipation plate installed in the outer port of the rectangular slot and a liquid exchange assembly installed inside the protective outer cover.

[0021] The inner side of the heat dissipation plate is installed with two sets of auxiliary clamps, and the two sets of auxiliary clamps are used to fix the motor.

[0022] The liquid exchange assembly includes a cold liquid transfer pipe and a cold liquid outer pipe stacked in the vertical direction, and the inner sides of the cold liquid transfer pipe and the hot liquid transfer pipe are provided with a plurality of evenly distributed conduits.

[0023] The cold liquid transfer pipe is connected with the cold liquid outer pipe at the outer end of the protective outer cover.

[0024] The hot liquid transfer pipe is connected with the hot liquid outer pipe at the outer end of the protective outer cover.

[0025] In a preferred example, the outer side of the protective outer cover is fixedly installed with two sets of clamps, the hydraulic component is fixedly installed in the two sets of clamps, and the horizontal hydraulic component is parallel to the side edge of the protective outer cover.

[0026] In a preferred example, the protective outer cover has a U-shaped structure, and the inner sides of the two end plates of the protective outer cover are provided with two T-shaped sliders symmetrically arranged, and the two ends of the mold inner pad towards the two end plates are provided with vertical grooves matched with the T-shaped sliders.

[0027] The top setting scraper is internally provided with circular scale holes adapted to the cylinder head casting hole parts in a preferred example of the present application.

[0028] The bottom setting scraper is internally provided with arc-shaped scale holes adapted to the cylinder body casting hole parts, and the center line of the bottom setting scraper is provided with a groove adapted to the cylindrical end.

[0029] The surface of the heat insulation bin, the middle conveying pipe, the four liquid separation plates and the separation pad is coated with a heat insulation coating in a preferred example of the present application, and the middle groove and the hole groove of the middle conveying pipe are provided with symmetrical holes, the holes in the groove are used to provide a conveying channel for the heat-exchanged liquid.

[0030] The holes in the hole groove are used to provide a conveying channel for the cooling liquid.

[0031] The top of the first flow distribution plate and the top of the inner cavity of the cylinder head casting hole part are reserved with a gap for liquid conveying in a preferred example of the present application.

[0032] The bottom end of the second flow distribution plate is provided with two drainage grooves.

[0033] By adopting the above technical scheme, the present application has the following beneficial effects:

[0034] 1. The present application sets an independent middle mold mechanism between the movable mold for casting the cylinder head and the fixed mold for casting the cylinder body, when the movable mold is lowered until the middle mold mechanism is pressed and locked on the fixed mold, the combined three molds are subjected to high-frequency impact by the energy supply assembly, at this time, the casting material in the double mold cavity can be continuously rammed, during the ramming period, the bubbles in the casting material and the gas in the double mold are driven out, so as to ensure that the casting material is fully wrapped around the cylinder head casting hole part and the cylinder body casting hole part, thereby avoiding the problem of cold separation or wrinkles of the water jacket hole wall caused by bubbles or air during subsequent forming.

[0035] 2. The present application sets a middle mold mechanism between the movable mold and the fixed mold, according to the path requirement of the cooling water channel in the cylinder body and the cylinder head, the casting hole mold is set in the middle mold mechanism to adapt to the structure of the water channel in the cylinder body and the cylinder head, so as to meet the adaptation requirement of the special-shaped water channel in the cylinder body and the cylinder head, thereby avoiding the problem that the structure of the movable mold and the fixed mold is too complex to hinder the input of the casting material and the subsequent gradual demolding.

[0036] 3. The present application sets up a casting hole temperature control mechanism in the middle mold mechanism, when the cooling liquid circulates and transfers in the casting hole temperature control mechanism, the two kinds of casting hole parts that extend into the cylinder cover and extend into the cylinder can orderly transfer the cooling liquid, until the casting material that is tamped and located outside the two kinds of casting hole parts is rapidly cooled for the first time, so as to realize the cooling from the water jacket hole as the center, thereby improving the smoothness and integrity of the water jacket hole wall. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 It is a schematic diagram of the die casting of the present application;

[0038] Figure 2 It is a schematic diagram of the bottom view of the present application;

[0039] Figure 3 It is an exploded schematic diagram of the hole cleaning mechanism of the present application;

[0040] Figure 4 It is a schematic diagram of the middle mold mechanism of the present application;

[0041] Figure 5 It is an exploded schematic diagram of the present application Figure 4 ;

[0042] Figure 6 It is a schematic diagram of the energy supply assembly of the present application;

[0043] Figure 7 It is a partial schematic diagram of the present application;

[0044] Figure 8 It is an exploded schematic diagram of the casting hole temperature control mechanism of the present application;

[0045] Figure 9 It is a schematic diagram of the backflow assembly of the present application;

[0046] Figure 10 It is an exploded schematic diagram of the double-hole heat exchange assembly of the present application;

[0047] Figure 11 It is a partial bottom view schematic diagram of the present application Figure 10 .

[0048] Reference signs:

[0049] 100, middle mold mechanism; 110, protective cover; 120, mold inner pad; 130, clamp; 140, heat dissipation plate; 150, liquid exchange 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, rotating wheel; 174, combined pull rod; 175, column head; 176, limiting frame;

[0050] 200, hole cleaning mechanism; 210, hydraulic component; 220, end head; 230, traction frame; 240, first chuck; 250, top placing scraper; 260, second chuck; 270, bottom placing scraper;

[0051] 300, casting hole temperature control mechanism; 310, backflow assembly; 311, heat insulation bin; 312, middle delivery end pipe; 313, liquid separation plate; 314, separation pad; 315, core pipe; 320, cold liquid backflow pipe; 330, hot liquid backflow pipe; 340, double-hole heat exchange assembly; 341, protective cover; 342, cold liquid end pipe; 343, hot liquid end pipe; 344, cylinder head casting hole component; 345, first flow distribution plate; 346, cylinder body casting hole component; 347, second flow distribution plate. DETAILED DESCRIPTION

[0052] To make the objects, technical solutions, and advantages of the present application clearer, further detailed description will be made to the present application with reference to the specific embodiments and the accompanying drawings. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0053] It is understood that the above description is only exemplary and is not intended to limit the scope of the present application.

[0054] Some embodiments of the present application provide an internal combustion engine cooling jacket die casting device.

[0055] Embodiment 1:

[0056] In combination with Figures 1 to 11 As shown in the drawings, the present application provides an internal combustion engine cooling jacket die casting device, which comprises a middle mold mechanism 100, a hole 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 is arranged between the movable mold and the fixed mold, which is used to provide an independent mold platform for the casting of the double-mold water jacket cavity, and to continuously compact the double-mold casting material. The hole cleaning mechanism 200 is used to clean and clean the water jacket cavity mold. The casting hole temperature control mechanism 300 is used to quickly cool the water jacket cavity cast in the cylinder head and the cylinder body.

[0057] The middle mold mechanism 100 comprises a protective cover 110 and a plastic mold inner pad 120 arranged inside the protective cover 110. A rectangular notch is formed in the middle of the bottom surface of the protective cover 110, and a power supply assembly 170 is arranged in the rectangular notch. A heat insulation pad 160 is arranged in the port of the sidewall of the plastic mold inner pad 120 facing the rectangular notch. A heat dissipation plate 140 is arranged in the port outside the rectangular notch, and a liquid exchange assembly 150 is arranged inside the protective cover 110.

[0058] The liquid changing assembly 150 comprises the cold liquid transferring pipe 151 and the cold liquid outer pipe 152 stacked in the vertical direction, and the inner side of the cold liquid transferring pipe 151 and the hot liquid transferring pipe 153 is provided with a plurality of evenly distributed pipes;

[0059] The cold liquid transferring pipe 151 is connected with the cold liquid outer pipe 152 at the outer end of the protective cover 110;

[0060] The hot liquid transferring pipe 153 is connected with the hot liquid outer pipe 154 at the outer end of the protective cover 110;

[0061] The energy supply assembly 170 is used for high-frequency impact on the mold inner pad 120, so as to make the shock wave on the mold inner pad 120 radiate to the movable mold and the fixed mold until the casting material gradually tamps in the movable mold and the fixed mold;

[0062] The energy supply assembly 170 comprises the sealing bottom plate 171 installed at the bottom of the rectangular slot, the motor 172 installed in the two main clamping plates at the top of the sealing bottom plate 171, and the limiting frame 176 fixedly installed on the top surface of the sealing bottom plate 171 and close to one side of the heat insulation pad 160;

[0063] The transmission shaft in the motor 172 is installed with the rotating wheel 173, the combined pull rod 174 is movably installed on the rotating wheel 173, and the stud 175 is provided on the combined pull rod 174 and penetrates into the inner hole of the heat insulation pad 160;

[0064] The combined pull rod 174 is composed of a long pull rod and a short pull rod, the inner side of the short pull rod is provided with a sliding groove, and the limiting frame 176 is movably installed in the sliding groove, so as to limit the reciprocating expansion of the combined pull rod 174;

[0065] The inner side of the heat dissipation plate 140 is installed with two sets of auxiliary clamping plates, and the two sets of auxiliary clamping plates are used for fixing the motor 172;

[0066] The protective cover 110 is in the overall U-shaped structure, the inner side of the two end plates of the protective cover 110 is provided with two T-shaped sliding blocks symmetrically distributed, and the two ends of the mold inner pad 120 towards the two end plates are provided with vertical grooves matched with the T-shaped sliding blocks.

[0067] When the movable mold is pushed downward by the hydraulic system, the movable mold actively applies a downward thrust to the mold inner pad 120 and the protective cover 110, until the bottom surface of the mold inner pad 120 and the protective cover 110 is tightly attached to the top end port of the fixed mold, at this time, the double mold can cooperate with the combined mold inner pad 120 and the protective cover 110 to form a closed double mold structure;

[0068] With the transportation of the casting material along the double-mold casting holes, the final casting material will enter the closed cavity of the double mold. When the motor 172 is running, the transmission shaft inside it will drive the rotating wheel 173. At this time, the rotating wheel 173 will push the long pull rod to move eccentrically, and the short pull rod will reciprocate along the inside of the rectangular slot under the limiting constraint of the limiting 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. The vibration after the impact will be radiated to the closed double mold. At this time, the casting material in the double mold can be continuously rammed, so that the bubbles and voids in the closed double mold can be filled with casting material, and the problem of cold separation or wrinkles on the water jacket hole wall in the subsequent cylinder block and cylinder head can be avoided.

[0069] Embodiment 2:

[0070] In combination Figures 3 to 11 As shown in the drawings, on the basis of embodiment 1, the top of the plastic mold inner pad 120 is provided with uniformly distributed cylindrical holes and insertion holes around the cylindrical holes, and the bottom of the plastic mold inner pad 120 is provided with uniformly distributed cylindrical end heads.

[0071] Preferably, the plastic mold inner pad 120 and the protective outer cover 110 are movably assembled. When the inner cavities of the movable mold and the fixed mold of different structures need to be selected, the plastic mold inner pad 120 is replaced, and different layouts of multiple groups of casting hole temperature control mechanisms 300 are arranged inside the replaced plastic mold inner pad 120, so that the inner cavity structure of the movable mold and the fixed mold of different models can be quickly adapted.

[0072] The casting hole temperature control mechanism 300 includes a backflow assembly 310 arranged in the cylindrical hole and a double-hole heat exchange assembly 340 arranged in the insertion hole.

[0073] The backflow assembly 310 includes a heat insulation bin 311 fixedly installed in the cylindrical hole, a partition pad 314 installed in the middle part of the inner cavity of the heat insulation bin 311, a middle delivery end pipe 312 installed in the inside of the partition pad 314, four liquid separation plates 313 fixedly installed on the outer wall of the middle delivery end pipe 312, and the four liquid separation plates 313 are installed on the top of the partition pad 314.

[0074] The middle delivery end pipe 312 is provided with a core pipe 315, a recess hole is formed in the middle part of the middle delivery end pipe 312, a hole groove is formed in the top of the middle delivery end pipe 312, and a hot liquid backflow pipe 330 is connected in the recess hole.

[0075] The bottom of the core pipe 315 is provided with a cold liquid backflow pipe 320, and the cold liquid backflow pipe 320 is adapted to penetrate to the outside of the middle delivery end pipe 312 and is located directly below the hot liquid backflow pipe 330.

[0076] The surface of the heat insulation bin 311, the middle conveying end pipe 312, the four liquid separation plates 313 and the partition pad 314 are coated with a heat insulation coating, and the recess in the middle of the middle conveying end pipe 312 and the hole groove at the top are provided with symmetrical holes, the holes in the recess are used to provide a conveying channel for the liquid after heat exchange;

[0077] The holes in the hole groove are used to provide a conveying channel for the cooling liquid.

[0078] 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 bin 311 by welding, and the outer side edges of the partition pad 314 are welded on the inner wall of the heat insulation bin 311 in the middle, and the bottom cavity formed by the partition pad 314 and the heat insulation bin 311 is used to avoid the accumulation of cooling liquid.

[0079] The double-hole heat exchange assembly 340 is a mold for casting the water jacket cavity structure of the cylinder head and the cylinder body;

[0080] The double-hole heat exchange assembly 340 includes a shield 341 installed inside the insertion hole, cold liquid end pipes 342 and hot liquid end pipes 343 arranged symmetrically inside the shield 341, a cylinder body casting hole member 346 fixedly installed at the bottom of the shield 341, a second flow distribution plate 347 fixedly installed in the middle of the inner cavity of the cylinder body casting hole member 346, a cylinder head casting hole member 344 fixedly installed at the top of the shield 341, and a first flow distribution plate 345 fixedly installed in the middle of the inner cavity of the cylinder head casting hole member 344;

[0081] The cold liquid end pipes 342 and the hot liquid end pipes 343 are connected to the inside of the heat insulation bin 311 at one end away from the shield 341;

[0082] The double-cavity structure inside the shield 341 is in communication with the double-cavity structure inside the cylinder body casting hole member 346 and the cylinder head casting hole member 344, respectively, for conveying the cooling liquid and conducting the heat energy in the casting material.

[0083] Preferably, the top end of the shield 341 is flush with the top surface of the mold inner pad 120, and the bottom end of the first flow distribution plate 345 is welded on the central part of the top surface of the shield 341, and the top end of the second flow distribution plate 347 is welded on the central part of the bottom surface of the shield 341;

[0084] When the cold liquid end pipes 342 input the cooling liquid into one cavity inside the shield 341, the cooling liquid will enter the inside of the cylinder head casting hole member 344 and the cylinder body casting hole member 346 from one cavity inside the shield 341, and finally flow back to the inside of the hot liquid end pipes 343. At this time, the cylinder head casting hole member 344 and the cylinder body casting hole member 346 can provide a casting hole carrier for rapid cooling of the cooling hole wall in the cylinder head casting and the cylinder body casting, so as to improve the smoothness of the water jacket hole wall.

[0085] Example 3:

[0086] In combinationFigures 3 to 11 As shown, on the basis of Embodiment 1, the hole cleaning mechanism 200 comprises a hydraulic part 210, a head 220 mounted on a hydraulic sub-rod in the hydraulic part 210, two traction frames 230 movably mounted on the head 220, a first clamp head 240 movably mounted on one of the traction frames 230, and a second clamp head 260 movably mounted on the other traction frame 230;

[0087] The other end of the first clamp head 240 is fixedly mounted with a top scraping plate 250, which is attached to the top surface of the mold inner pad 120;

[0088] The other end of the second clamp head 260 is fixedly mounted with a bottom scraping plate 270, which is attached to the bottom surface of the mold inner pad 120, and the top scraping plate 250 and the bottom scraping plate 270 are used to scrape the residues on the double-hole heat exchange assembly 340;

[0089] Two sets of clamps 130 are fixedly mounted on the outer side of the protective cover 110, the hydraulic part 210 is fixedly mounted in the two sets of clamps 130, and the horizontally placed hydraulic part 210 is parallel to the side edges of the protective cover 110;

[0090] The inside of the top scraping plate 250 is provided with circular scale removal holes that are adapted to the plurality of cylinder head casting hole parts 344;

[0091] The inside of the bottom scraping plate 270 is provided with arc-shaped scale removal holes that are adapted to the plurality of cylinder body casting hole parts 346, and a recess adapted to the cylindrical head is provided at the center line of the bottom scraping plate 270;

[0092] The top of the first flow dividing plate 345 and the top of the inner cavity of the cylinder head casting hole part 344 are provided with a gap for liquid delivery;

[0093] The bottom end of the second flow dividing plate 347 is provided with two drainage grooves.

[0094] Preferably, according to the selected lengths of the cylinder head casting hole part 344 and the cylinder body casting hole part 346, the lengths of the two traction frames 230 can be set according to the maximum distance of the outward extension of the top scraping plate 250 and the bottom scraping plate 270, wherein the two traction frames 230 and the head 220 form a triangular structure;

[0095] When the hydraulic component 210 is set, the inner hydraulic sub-rod will push the end head 220 after the hydraulic component 210 is operated, and the two traction frames 230 movably installed on the end head 220 will exert traction force on the first clamp head 240 and the top setting scraper 250, and the top setting scraper 250 arranged on the top of the plastic mold inner pad 120 and the bottom setting scraper 270 arranged on the bottom of the plastic mold inner pad 120 will be pressed to extend outward along the cylinder head casting hole component 344 and the cylinder body casting hole component 346 respectively, and finally the waste attached to the surface of the cylinder head casting hole component 344 and the cylinder body casting hole component 346 can be scraped to avoid interference with the subsequent casting forming.

[0096] The working principle and use process of the present application are as follows: the device is arranged between the movable mold and the fixed mold of the injection molded cylinder head and cylinder body in advance, so that the cylinder head casting hole component 344 faces the movable mold of the injection molded cylinder head, and the cylinder body casting hole component 346 faces the fixed mold of the injection molded cylinder body.

[0097] When the movable mold descends along the uniformly distributed plurality of cylinder head casting hole components 344 until the uniformly distributed plurality of cylinder head casting hole components 344 are completely inserted into the movable mold, the middle mold mechanism 100 obtained by further pressing and continuously descending the movable mold will be adapted to the fixed mold, until the device is clamped by the movable mold and the fixed mold, the casting material can be input from the material hole of the double mold, and the motor 172 can be started as the casting material is continuously injected into the double mold, at this time the transmission shaft in the motor 172 will drive the rotating wheel 173 to rotate, and the rotating wheel 173 will also drive the combined pull rod 174 to extend transversely and reciprocally along the limiting frame 176, and the stud 175 arranged on the combined pull rod 174 can vibrate and knock the outer wall of the plastic mold inner pad 120 through the hole of the heat insulation pad 160, at this time the plastic mold inner pad 120 can dredge the air bubbles and other gaps in the casting material inside the end surface between the double molds, until the casting material completely fills the mold cavity of the double mold.

[0098] When the casting material stops inputting into the double mold, the cooling liquid is inputted into the inside of the cooling liquid transfer pipe 151 by the cooling liquid outer pipe 152, and the multiple pipes arranged inside the cooling liquid transfer pipe 151 input the cooling liquid into the inside of the multiple cooling liquid return pipes 320 and the core pipe 315, finally the cooling liquid enters the hole slot on the top of the middle transfer end pipe 312 from the core pipe 315, and then the cooling liquid in the hole slot enters the inside of the four cooling liquid end pipes 342 from the two places of the fan-shaped cavity, and the cooling liquid inputted from the cooling liquid end pipes 342 enters the separated cavity in the cylinder head casting hole part 344 through the cavity in the shroud 341, because the first distribution plate 345 separates the inside cavity of the cylinder head casting hole part 344 into two cavities, so the flowing cooling liquid is transferred from the other cavity of the cylinder head casting hole part 344 to the other cavity in the shroud 341, and the cooling liquid also flows back along the cavity separated by the second distribution plate 347 in 348, accompanied by the delivery of the cooling liquid after heat exchange by the hot liquid outer pipe 154, the heat exchange liquid flowing into the other cavity in 348 can enter the other two fan-shaped cavities in the return assembly 310 through the hot liquid return pipe 330, finally the heat exchange liquid enters the hot liquid transfer pipe 153 and the hot liquid outer pipe 154 along the hot liquid return pipe 330, so as to realize the rapid solidification of the water jacket hole wall in the cylinder block casting and the cylinder head casting, and to improve the smoothness and regularity of the water jacket hole wall.

[0099] Although the embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A die-casting apparatus for an internal combustion engine cooling water jacket, comprising a middle mold mechanism (100), characterized in that, It also includes a hole chip cleaning mechanism (200) disposed on the intermediate mold mechanism (100) and a casting hole temperature control mechanism (300) disposed within the intermediate mold mechanism (100). The middle mold mechanism (100) includes a protective outer cover (110) and a plastic mold pad (120) disposed inside the protective outer cover (110). The top of the plastic mold pad (120) is provided with evenly distributed cylindrical holes and insertion holes around the cylindrical holes. The bottom of the plastic mold pad (120) is provided with evenly distributed cylindrical ends. The middle of the bottom surface of the protective outer cover (110) is provided with a rectangular slot, and a power supply component (170) is provided in the rectangular slot. A heat insulation pad (160) is provided in the port of the rectangular slot facing the side wall of the plastic mold pad (120). The power supply assembly (170) includes a sealing base plate (171) installed at the bottom of a rectangular slot, a motor (172) installed in two sets of main clamping plates at the top of the sealing base plate (171), and a limit bracket (176) fixedly installed on the top surface of the sealing base plate (171) and on the side near the heat insulation pad (160). A rotating wheel (173) is installed on the internal drive shaft of the motor (172), and 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 heat insulation pad (160). The combined tie rod (174) consists of a long tie rod and a short tie rod. The short tie rod has a groove inside, and the limiting frame (176) is movably installed in the groove to provide a limit for the reciprocating extension of the combined tie rod (174). The power supply component (170) is used to impact the mold inner pad (120) at high frequency, so as to cause the shock wave on the mold inner pad (120) to radiate 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 active mold actively applies a downward thrust to the inner mold pad (120) and the protective cover (110). The bottom surfaces of the inner mold pad (120) and the protective cover (110) are pressed tightly against the top port of the fixed mold. The inner mold pad (120) and the protective cover (110) after the two molds are combined form a closed double mold structure. As the casting material is transferred along the casting hole of the double mold, the casting material will enter the closed cavity of the double mold. After the motor (172) runs, its internal transmission shaft will drive the rotating wheel (173). At this time, the rotating wheel (173) will push the long pull rod to perform eccentric movement.

2. The internal combustion engine cooling water jacket die-casting device according to claim 1, characterized in that, The middle mold mechanism (100) also includes a heat sink (140) installed in the outer port of the rectangular slot and a fluid exchange assembly (150) installed inside the protective cover (110). Two sets of auxiliary clamps are installed on the inner side of the heat sink (140), and the two sets of auxiliary clamps are used to fix the motor (172); The fluid exchange assembly (150) includes a cold liquid transfer pipe (151) and a cold liquid outer pipe (152) stacked vertically, and multiple uniformly distributed conduits are provided on the inner side of both the cold liquid transfer pipe (151) and the hot liquid transfer pipe (153). The cold liquid transfer pipe (151) extends through to the outer end of the protective cover (110) and is connected to the cold liquid outer pipe (152). The hydrothermal transfer pipe (153) extends through to the outer end of the protective cover (110) and is connected to the hydrothermal outer pipe (154).

3. The internal combustion engine cooling water jacket die-casting device according to claim 1, characterized in that, The casting hole temperature control mechanism (300) includes a reflux assembly (310) disposed in a cylindrical hole and a double-hole heat exchange assembly (340) disposed in a socket. The reflux assembly (310) includes an insulation chamber (311) fixedly installed in a cylindrical hole, a partition pad (314) installed in the middle of the inner cavity of the insulation chamber (311), a central inlet pipe (312) installed inside the partition pad (314), and four liquid-separating plates (313) fixedly installed on the outer wall of the central inlet pipe (312), with the four liquid-separating plates (313) installed on the top of the partition pad (314). The central transmission pipe (312) is equipped with a core tube (315), and a concave hole is opened in the middle of the central transmission pipe (312). A slot is opened at the top of the central transmission pipe (312), and a hot liquid return pipe (330) is connected in the concave hole. The bottom of the core tube (315) is equipped with a cold liquid return pipe (320), and the cold liquid return pipe (320) is adapted to extend through to the outside of the intermediate transmission end pipe (312) and is located directly below the hot liquid return pipe (330); The dual-hole heat exchange assembly (340) is a mold for casting the water jacket cavity structure of the cylinder head and cylinder body.

4. The internal combustion engine cooling water jacket die-casting device according to claim 3, characterized in that, The dual-hole heat exchange assembly (340) includes a shield (341) installed inside the socket, a cold liquid end pipe (342) and a hot liquid end pipe (343) arranged symmetrically inside the shield (341), a cylinder casting hole part (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 casting hole part (346), a cylinder head casting hole part (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 part (344). The ends of the cold liquid end pipe (342) and the hot liquid end pipe (343) away from the protective cover (341) are connected to the inside of the heat insulation chamber (311); The double-cavity structure inside the shield (341) is connected to the double-cavity structure inside the cylinder block casting (346) and the cylinder head casting (344) respectively, for transferring coolant and conducting heat energy in the casting.

5. The die-casting apparatus for cooling water jacket of an internal combustion engine according to claim 3, characterized in that, The surfaces of the heat insulation chamber (311), the intermediate transmission pipe (312), the four liquid septums (313) and the separator (314) are all coated with a heat insulation coating. The groove in the middle of the intermediate transmission pipe (312) and the slot at the top are provided with symmetrical holes. The holes in the groove are used to provide a transfer channel for the heat-exchanged liquid. The holes in the slot are used to provide channels for the delivery of coolant.

6. The die-casting apparatus for cooling water jacket of an internal combustion engine according to claim 4, characterized in that, A gap for fluid delivery is reserved between the top of the first diverter plate (345) and the top of the inner cavity of the cylinder head casting (344); The bottom end of the second diverter plate (347) has two diversion grooves.

7. The internal combustion engine cooling water jacket die-casting device according to claim 1, characterized in that, The hole chip cleaning mechanism (200) includes a hydraulic component (210), an end (220) mounted on a hydraulic rod inside the hydraulic component (210), two traction frames (230) movably mounted on the end (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). The other end of the first chuck (240) is fixedly equipped with a top scraper (250), 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 equipped with a bottom scraper (270), and the bottom scraper (270) is attached to the bottom surface of the mold inner pad (120). The top scraper (250) and the bottom scraper (270) are used to scrape off the residue on the double-hole heat exchange assembly (340).

8. The internal combustion engine cooling water jacket die-casting device according to claim 7, characterized in that, Two sets of clamps (130) are fixedly installed on the outside of the protective cover (110), and the hydraulic component (210) is fixedly installed in the two sets of clamps (130), and the horizontally placed hydraulic component (210) is parallel to the side of the protective cover (110). The protective cover (110) has a U-shaped structure, and two T-shaped sliders are symmetrically distributed on the inner sides of the two end plates of the protective cover (110). The plastic mold pad (120) has vertical grooves adapted to the T-shaped sliders at both ends facing the two end plates.

9. The internal combustion engine cooling water jacket die-casting device according to claim 7, characterized in that, The top scraper (250) has circular scraping holes inside that are adapted to multiple cylinder head castings (344); The bottom scraper (270) has an arc-shaped scraping hole adapted to multiple cylinder casting holes (346) inside, and a groove adapted to the cylindrical end is provided at the center line of the bottom scraper (270).

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