A casting production mold and its use method

Abstract

The present invention discloses a mold for casting production and a method for using the same, and relates to the technical field of casting molds, comprising: a base; an upper frame, with mounting columns fixedly connected to the four corners of the lower portion, and the mounting columns are fixedly connected to the top of the base; and a lower mold, which is arranged on the top of the base. The present invention discloses a mold for casting production and a method for using the same, which has the following steps: after the molten liquid is filled, the forward and reverse motors are started to drive the intermediate tube and the operating sleeve to exchange positions, and then the hydraulic cylinder is adjusted to drive the intermediate extrusion column to press down to a position parallel to the bottom of the casting tube. During the downward pressure, the excess molten liquid inside the upper and lower molds squeezes the lifting ring, causing the self-adjusting spring rod to be compressed, and the lifting ring moves to above the opening of the collection channel at the bottom, and the extraction pump is started. The extraction pump collects the excess molten liquid through the collection channel to prevent it from accumulating at the casting tube to form a gate defect.

Description

Technical Field

[0001] The present invention relates to the technical field of casting molds, and in particular to a mold for casting production and a method of using the mold. Background Art

[0002] During use of existing casting production molds, there is a casting pipe nozzle above the upper mold. During the casting process, the liquid in the molten state is introduced into the upper mold and the lower mold. After the quantitative introduction, part of the molten liquid is retained at the connection between the casting pipe and the upper mold, thereby forming a casting defect. As a result, the casting nozzle of the valve after casting needs to be cut and polished, which reduces the use value of the casting production mold. Summary of the Invention

[0003] The present invention discloses a mold for casting production, which aims to solve the technical problem that in the use of existing casting production molds, there is a casting pipe nozzle above the upper mold. During the casting process, liquid in a molten state is introduced into the upper mold and the lower mold. After the quantitative introduction, part of the molten liquid is retained at the connection between the casting pipe and the upper mold, thereby causing casting defects.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A casting production mold, comprising:

[0006] base;

[0007] The upper rack has mounting posts fixedly connected to the four corners below it, and the mounting posts are fixedly connected to the top of the base;

[0008] A lower mold is arranged on the top of the base;

[0009] Upper mold: There are two presses symmetrically distributed on the bottom of the upper rack, and the upper mold is fixedly connected to the output ends of the two presses;

[0010] A plurality of positioning cylinders are arranged on the base near the top of each mounting column, each of which has a positioning rod inserted therein, and the top end of the positioning rod is fixedly connected to the top of the upper mold;

[0011] The operating slot is opened on the top of the upper mold;

[0012] A casting pipe is provided in the casting hole provided in the upper mold and is connected to the operating slot;

[0013] The gate processing mechanism is arranged inside the operating slot;

[0014] The connecting slot is opened near the bottom of the lower mold;

[0015] The material-cutting auxiliary mechanism is arranged inside the communicating slot.

[0016] In a preferred embodiment, the gate processing mechanism includes:

[0017] The butt-jointed pipe has an outer side wall fixedly connected to a connecting frame, and the bottom of the connecting frame is fixedly connected to the outer side wall of the casting pipe;

[0018] The forward and reverse motor is arranged on the inner wall of the bottom of the casting pipe near the operating slot, and its output shaft is fixedly connected to the drive shaft through a coupling, and the top end of the drive shaft is fixedly connected to the rotating connecting frame;

[0019] The operating sleeve is arranged on the side of the rotating connecting frame away from the docking pipe;

[0020] The intermediate pipe is arranged on the side of the rotating frame away from the operating sleeve and is located between the butt joint pipe and the casting pipe;

[0021] The reinforced ring rail is arranged on the bottom inner wall of the operation slot hole located at the periphery of the forward and reverse motors. Two reinforced slide bars are slidably connected inside the reinforced ring rail, and the top ends of the reinforced slide bars are fixedly connected to the bottom of the rotating frame.

[0022] In a preferred embodiment, the gate processing mechanism further includes:

[0023] The middle extrusion column is fixedly connected to the hydraulic cylinder three at equal distances above it, and the top of each hydraulic cylinder three is fixedly connected to a fixing rod, which is fixedly connected to the inner wall of the operating sleeve;

[0024] An external connecting ring rod is provided on the outer side wall of the middle extrusion column and is fitted with the inner side wall of the operating sleeve;

[0025] The lifting ring and the inner wall of the operating sleeve are symmetrically provided with lifting grooves, and the interior of the two lifting grooves are slidably connected with lifting slide rods. The lifting ring is fixedly connected to the outer walls of the two lifting slide rods, and the lifting ring fits the outer wall of the middle extrusion column and the inner wall of the operating sleeve.

[0026] In a preferred solution, the bottom of the external ring rod is annularly distributed with self-adjusting spring rods, and the bottom ends of the self-adjusting spring rods are fixedly connected to the inside of the lifting ring, and the top of the external ring rod is annularly distributed with upper lifting frames, and the top of each upper lifting frame is fixedly connected to a hydraulic cylinder four, and the output end of each hydraulic cylinder four is fixedly connected to a pressing column.

[0027] In a preferred solution, the operating slot is fixedly connected to a collecting box on the inner wall of the bottom away from the operating sleeve, and an extraction pump is fixedly connected to the rotating frame. A collecting channel is opened on the middle extrusion column, and a mounting pipe is fixedly connected to the top of the collecting channel. One end of the mounting pipe is connected to the extraction end of the extraction pump, and the delivery end of the extraction pump is fixedly connected to a telescopic hose. One end of the telescopic hose is fixedly connected to a delivery hard pipe, and the delivery hard pipe is inserted into the interior of the collecting box.

[0028] In a preferred embodiment, a placement groove is provided at the bottom of the lifting ring, and a pressure sensor is distributed in a ring shape on the top inner wall of the placement groove, a telescopic connecting rod is distributed in a ring shape on the top inner wall of the placement groove, and the bottom of the telescopic connecting rod is fixedly connected to the same pressure plate, and the lifting ring is located outside the collecting channel.

[0029] In a preferred embodiment, the blanking auxiliary mechanism includes:

[0030] Two blocking plates are arranged below the connection point between the connecting slot hole and the casting slot of the lower mold, and the two blocking plates are fixedly connected to the opposite sides thereof with an adjusting plate;

[0031] Two mounting brackets are symmetrically distributed on the top inner wall of the connecting slot, and hydraulic cylinders 1 are fixedly connected at equal distances on opposite sides of the two mounting brackets, and the output ends of multiple hydraulic cylinders 1 on one side are fixedly connected to one side of the same adjustment plate;

[0032] The hollow plate is arranged on the bottom inner wall of the communicating slot below the two blocking plates, and has sealing grooves on both sides. A sealing plug-in plate is fixedly connected to the side of the adjusting plate facing the sealing groove, and the sealing plug-in plate is inserted into the interior of the sealing groove.

[0033] In a preferred embodiment, the blanking auxiliary mechanism further comprises:

[0034] The middle cylinder is arranged in the mounting hole opened at the center line of the hollow plate;

[0035] The inner frame is arranged on the inner side wall of the middle tube near the bottom end, and the top of the inner frame is fixedly connected with a telescopic column;

[0036] A jacking head, which is set on the top of the telescopic column;

[0037] The sealing ring is arranged at the bottom of the lifting head and fits with the inner wall of the middle cylinder.

[0038] In a preferred solution, the top of the hollow air plate is symmetrically provided with long exhaust holes, and one side of each long exhaust hole is connected to a deflection plate by a hinge, the top inner wall of the hollow air plate near the deflection plate is fixedly connected to a mounting rod, one side of the mounting rod is fixedly connected to a connecting spring at equal distances, one end of the connecting spring is fixedly connected to the bottom of the adjacent deflection plate, the top of the hollow air plate near both ends is fixedly connected to hydraulic cylinder 2, the output end of hydraulic cylinder 2 is fixedly connected to a limiting pressure plate, both sides of the lower mold are fixedly connected to pump ring frames, the interior of the two pump ring frames are fixedly connected to an air pump, the air delivery end of the air pump is fixedly connected to an air delivery pipe, one end of the air delivery pipe is plugged into the interior of the hollow air plate, the hollow air plate is provided with a pipe groove at the air delivery pipe, and the air delivery pipe is located in the pipe groove.

[0039] A method for using a casting production mold, using the casting production mold as described above, comprises the following steps:

[0040] Step 1: Adjust the press to drive the upper mold down to fit with the lower mold, and then start filling with molten liquid;

[0041] Step 2: After the molten liquid is filled, the forward and reverse motors are started to drive the intermediate tube and the operating sleeve to exchange positions, and then the hydraulic cylinder 3 is adjusted to drive the intermediate extrusion column to press down to a position parallel to the bottom of the casting tube. During the downward pressure, the excess molten liquid inside the upper mold and the lower mold squeezes the lifting collar, so that the self-adjusting spring rod is compressed, and the lifting collar moves to above the opening of the collection channel below. The extraction pump is started, and the extraction pump collects the excess molten liquid through the collection channel. As the molten liquid is discharged, the interaction force between the pressure plate and the pressure sensor gradually decreases. When it drops to a fixed value range, the hydraulic cylinder 4 is adjusted to drive the pressing column to contact the lifting collar and squeeze it, so that the lifting collar gradually drops to the same level as the intermediate extrusion column, completing the molten liquid discharge operation;

[0042] Step 3: After the molten liquid inside the casting tube is processed, the molding operation begins. After the valve is formed, it needs to be cooled. The hydraulic cylinder is adjusted to drive the sealing plate to move away from the bottom of the connection between the lower mold and the connecting slot, and the air pump is started. The air pump introduces external gas into the hollow plate. The gas pushes the deflection piece, causing the deflection piece to deflect upward. The gas slowly escapes through the exhaust holes to the connection between the lower mold and the connecting slot and gradually enters the lower mold, accelerating the cooling and molding of the valve inside the lower mold. After cooling and molding, the hydraulic cylinder is adjusted to drive the limit pressure plate to advance, thereby pushing each deflection piece to reset it. At this time, the gas introduced into the hollow plate by the air pump flows to the middle tube, and the lifting head on the middle tube is passively lifted. As more and more gas is introduced, the driving force of the lifting head on the valve inside the lower mold becomes greater and greater, thereby lifting the valve through the lifting head to complete the rapid blanking of the valve.

[0043] From the above, it can be seen that the casting production mold provided by the present invention has the following technical effect: after the molten liquid is filled, the forward and reverse motors are started to drive the intermediate tube and the operating sleeve to change positions, and then the hydraulic cylinder is adjusted to drive the intermediate extrusion column to be pressed down to a position parallel to the bottom of the casting tube. During the downward pressure, the excess molten liquid inside the upper mold and the lower mold squeezes the lifting ring, so that the self-adjusting spring rod is compressed, and the lifting ring moves to above the opening of the collection channel below, and the extraction pump is started. The extraction pump collects the excess molten liquid through the collection channel to avoid its accumulation at the casting tube to form a gate defect. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 This is a schematic diagram of the overall structure of a casting production mold proposed by the present invention.

[0045] Figure 2 This is a schematic diagram of the combined structure of an upper mold and a lower mold for a casting production mold proposed by the present invention.

[0046] Figure 3 for Figure 2 Cross-sectional view of the upper and lower mold structures.

[0047] Figure 4 This is a schematic diagram of a gate processing mechanism for a casting production mold proposed by the present invention.

[0048] Figure 5 for Figure 4 Schematic diagram of the planar structure.

[0049] Figure 6 This is a cross-sectional view of the operating sleeve structure of a casting production mold proposed by the present invention.

[0050] Figure 7 This is a disassembled diagram of the lifting collar and pressure ring plate structure of a casting production mold proposed by the present invention.

[0051] Figure 8 This is a schematic diagram of a blanking auxiliary mechanism for a casting production mold proposed by the present invention.

[0052] Figure 9 for Figure 8 Cross-sectional view of the structure of the middle sealing plate and the middle air plate.

[0053] Figure 10 for Figure 9 Bottom view of the central air plate structure.

[0054] Figure 11 for Figure 10 Schematic diagram of the planar structure.

[0055] Figure: 1, base; 2, lower mold; 3, upper mold; 4, positioning rod; 5, upper frame; 6, press; 7, positioning cylinder; 8, mounting column; 9, connecting slot; 10, auxiliary mechanism for unloading; 1001, air pump; 1002, pump ring frame; 1003, hollow plate; 1004, blocking plate; 1005, sealing plug plate; 1006, adjustment plate; 1007, mounting frame; 1008, hydraulic Cylinder 1; 1009, limit pressure plate; 1010, deflection plate; 1011, lifting head; 1012, intermediate cylinder; 1013, hydraulic cylinder 2; 1014, pipe groove; 1015, telescopic column; 1016, sealing ring; 1017, inner frame; 1018, mounting rod; 1019, connecting spring; 11, operating slot; 12, gate processing mechanism; 1201, butt pipe; 1202, connecting Connecting frame; 1203, intermediate pipe; 1204, telescopic hose; 1205, delivery pipe; 1206, collection box; 1207, operating sleeve; 1208, intermediate extrusion column; 1209, forward and reverse motor; 1210, reinforced ring rail; 1211, reinforced slide bar; 1212, rotating connecting frame; 1213, drive shaft; 1214, extraction pump; 1215, mounting pipe; 1216, lifting Groove; 1217, fixed rod; 1218, collecting channel; 1219, external ring rod; 1220, pressure plate; 1221, self-adjusting spring rod; 1222, lifting ring; 1223, hydraulic cylinder three; 1224, telescopic connecting rod; 1225, lifting slide rod; 1226, pressure sensor; 1227, upper lifting frame; 1228, pressing column; 1229, hydraulic cylinder four; 13, casting pipe. DETAILED DESCRIPTION

[0056] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0057] A casting production mold disclosed in the present invention is mainly used for existing casting production molds. During use, there is a casting nozzle above the upper mold. During the casting process, the liquid in the molten state is introduced into the upper mold and the lower mold. After the quantitative introduction, part of the molten liquid is retained at the connection between the casting pipe and the upper mold, thereby forming a casting defect scenario.

[0058] Reference Figures 1-11 , a casting production mold, comprising:

[0059] Base 1;

[0060] The upper frame 5 has four lower corners fixedly connected to mounting posts 8, which are all fixedly connected to the top of the base 1;

[0061] The lower mold 2 is arranged on the top of the base 1;

[0062] The upper mold 3 and the bottom of the upper frame 5 are symmetrically distributed with two presses 6, and the upper mold 3 is fixedly connected to the output ends of the two presses 6;

[0063] A plurality of positioning cylinders 7 are provided on the base 1 near the top of each mounting column 8, each of which has a positioning rod 4 inserted therein, and the top of the positioning rod 4 is fixedly connected to the top of the upper mold 3;

[0064] An operating slot 11 is provided on the top of the upper mold 3;

[0065] The casting pipe 13 is provided in the casting hole opened in the upper mold 3 and is connected to the operation slot 11;

[0066] The gate processing mechanism 12 is arranged inside the operation slot 11;

[0067] The connecting slot 9 is provided near the bottom of the lower mold 2;

[0068] The blanking auxiliary mechanism 10 is disposed inside the communicating slot 9 .

[0069] Reference Figure 1-Figure 7 In a preferred embodiment, the gate processing mechanism 12 includes:

[0070] The butt-jointed pipe 1201 has a connecting frame 1202 fixedly connected to its outer wall, and the bottom of the connecting frame 1202 is fixedly connected to the outer wall of the casting pipe 13;

[0071] The forward and reverse motor 1209 is installed on the bottom inner wall of the operation slot 11 near the casting tube 13. The output shaft of the motor 1209 is fixedly connected to the drive shaft 1213 through a coupling. The top end of the drive shaft 1213 is fixedly connected to the rotating connecting frame 1212.

[0072] The operating sleeve 1207 is disposed on the side of the rotating frame 1212 away from the docking tube 1201;

[0073] The intermediate tube 1203 is provided on the side of the rotating frame 1212 away from the operating sleeve 1207 and is located between the butt joint tube 1201 and the casting tube 13;

[0074] The reinforced ring rail 1210 is arranged on the bottom inner wall of the operating slot hole 11 located outside the forward and reverse motor 1209. Two reinforced slide rods 1211 are slidably connected inside the reinforced ring rail 1210, and the top end of the reinforced slide rod 1211 is fixedly connected to the bottom of the rotating frame 1212.

[0075] In a specific application scenario, after the molten liquid is filled, the forward and reverse motors 1209 are started to drive the intermediate tube 1203 and the operating sleeve 1207 to change positions, and then the hydraulic cylinder three 1223 is adjusted to drive the intermediate extrusion column 1208 to be pressed down to a position parallel to the bottom of the casting tube 13. During the downward pressure, the excess molten liquid inside the upper mold 3 and the lower mold 2 squeezes the lifting ring 1222, so that the self-adjusting spring rod 1221 is compressed, and the lifting ring 1222 moves to above the opening of the collection channel 1218 below, and the extraction pump 1214 is started. The extraction pump 1214 collects the excess molten liquid through the collection channel 1218 to prevent it from accumulating in the casting tube 13 to form a gate defect, thereby improving the valve casting molding effect.

[0076] Specifically, as the molten liquid is discharged, the interaction force between the pressure plate 1220 and the pressure sensor 1226 gradually decreases. When it drops to a fixed value range, the hydraulic cylinder 1229 is adjusted to drive the pressing column 1228 to contact the lifting ring 1222 and squeeze it, so that the lifting ring 1222 gradually drops to the same level as the middle extrusion column 1208, completing the discharge operation of the molten liquid, ensuring that the total amount of molten liquid between the upper mold 3 and the lower mold 2 is sufficient, and avoiding excessive discharge of the molten liquid causing quality problems in the valve after molding. At the same time, the joint extrusion of the middle extrusion column 1208 and the pressure plate 1220 makes the molten liquid inside the upper mold 3 and the lower mold 2 filled more densely.

[0077] It should be noted that the middle extrusion column 1208 and the lifting ring 1222 are both on the same horizontal plane with the bottom of the casting tube 13. At the same time, after the pressure plate 1220 contacts the pressure sensor 1226, the bottom of the pressure plate 1220 and the bottom of the lifting ring 1222 are on the same horizontal plane, so that after the valve between the upper mold 3 and the lower mold 2 is formed, there will be no gate defects due to the existence of the casting tube 13, thereby improving the valve molding effect.

[0078] Reference Figure 4-Figure 7 In a preferred embodiment, the gate processing mechanism 12 further includes:

[0079] The middle extrusion column 1208 is fixedly connected to the hydraulic cylinder 3 1223 at an equal distance above it. The top of each hydraulic cylinder 3 1223 is fixedly connected to a fixing rod 1217, and the fixing rod 1217 is fixedly connected to the inner wall of the operating sleeve 1207;

[0080] The outer ring rod 1219 is provided on the outer side wall of the middle extrusion column 1208 and fits with the inner side wall of the operating sleeve 1207;

[0081] The lifting ring 1222 and the inner wall of the operating sleeve 1207 are symmetrically provided with lifting grooves 1216, and the interiors of the two lifting grooves 1216 are slidably connected with lifting slides 1225. The lifting ring 1222 is fixedly connected to the outer walls of the two lifting slides 1225. The lifting ring 1222 is in contact with the outer wall of the middle extrusion column 1208 and the inner wall of the operating sleeve 1207.

[0082] Reference Figure 5 and Figure 6 In a preferred embodiment, a self-adjusting spring rod 1221 is distributed in a ring shape at the bottom of the external ring rod 1219, and the bottom end of the self-adjusting spring rod 1221 is fixedly connected to the inside of the lifting ring 1222, and an upper lifting frame 1227 is distributed in a ring shape at the top of the external ring rod 1219. The top of each upper lifting frame 1227 is fixedly connected to a hydraulic cylinder four 1229, and the output end of each hydraulic cylinder four 1229 is fixedly connected to a pressing column 1228.

[0083] Reference Figure 3 、 Figure 6 and Figure 7 In a preferred embodiment, the operating slot 11 is fixedly connected to the bottom inner wall away from the operating sleeve 1207 with a collecting box 1206, and the rotating frame 1212 is fixedly connected to an extraction pump 1214, and a collecting channel 1218 is opened on the middle extrusion column 1208. The top of the collecting channel 1218 is fixedly connected to a mounting tube 1215, and one end of the mounting tube 1215 is connected to the extraction end of the extraction pump 1214. The delivery end of the extraction pump 1214 is fixedly connected to a telescopic hose 1204, and one end of the telescopic hose 1204 is fixedly connected to a delivery hard pipe 1205, and the delivery hard pipe 1205 is inserted into the interior of the collecting box 1206.

[0084] In the present invention, a placement groove is opened at the bottom of the lifting ring 1222, and a pressure sensor 1226 is distributed in a ring shape on the top inner wall of the placement groove. A telescopic link 1224 is distributed in a ring shape on the top inner wall of the placement groove. The bottom of the telescopic link 1224 is fixedly connected to the same pressure plate 1220, and the lifting ring 1222 is located outside the collection channel 1218.

[0085] Reference Figure 1 、 Figure 3 、 Figures 8-11 In a preferred embodiment, the blanking auxiliary mechanism 10 includes:

[0086] Two blocking plates 1004 are provided below the connection point between the connecting slot hole 9 and the casting slot of the lower mold 2. Adjustment plates 1006 are fixedly connected to the opposite sides of the two blocking plates 1004.

[0087] Two mounting brackets 1007 are symmetrically distributed on the top inner wall of the connecting slot 9. Hydraulic cylinders 1008 are fixedly connected to opposite sides of the two mounting brackets 1007 at equal distances. The output ends of multiple hydraulic cylinders 1008 on one side are fixedly connected to one side of the same adjustment plate 1006.

[0088] The hollow plate 1003 is arranged on the bottom inner wall of the connecting slot 9 below the two blocking plates 1004, and has sealing grooves on both sides. The side of the adjustment plate 1006 facing the sealing groove is fixedly connected to a sealing plug plate 1005, which is inserted into the inside of the sealing groove.

[0089] Specifically, after the valve is formed, the hydraulic cylinder 1008 is adjusted to drive the sealing plate 1004 to move away from below the connection point between the lower mold 2 and the connecting slot 9, and the air pump 1001 is started. The air pump 1001 introduces external gas into the hollow plate 1003, and the gas pushes the deflection plate 1010, causing the deflection plate 1010 to deflect upward. The gas slowly escapes through the various exhaust holes to the connection point between the lower mold 2 and the connecting slot 9 and gradually enters the lower mold 2, accelerating the cooling and forming of the valve inside the lower mold 2.

[0090] It should be noted that after the gas-assisted valve is cooled and formed for a period of time, the hydraulic cylinder 2 1013 is adjusted to drive the limit pressure plate 1009 to advance, thereby pushing each deflection plate 1010 to reset it. At this time, the gas introduced into the hollow plate 1003 by the air pump 1001 flows to the middle cylinder 1012, and the lifting head 1011 on the middle cylinder 1012 is passively lifted up. As more and more gas is introduced, the pushing force of the lifting head 1011 on the valve inside the lower mold 2 becomes greater and greater, thereby lifting the valve through the lifting head 1011 to complete the rapid discharge of the valve.

[0091] Reference Figures 8-11 In a preferred embodiment, the blanking auxiliary mechanism 10 further includes:

[0092] The middle cylinder 1012 is arranged in the mounting hole opened at the center line of the hollow plate 1003;

[0093] The inner frame 1017 is provided on the inner side wall of the middle tube 1012 near the bottom end, and the top of the inner frame 1017 is fixedly connected to the telescopic column 1015;

[0094] A lifting head 1011 is provided on the top of the telescopic column 1015;

[0095] The sealing ring 1016 is provided at the bottom of the lifting head 1011 and is in contact with the inner wall of the middle cylinder 1012 .

[0096] Reference Figure 10 and Figure 11In a preferred embodiment, the top of the hollow plate 1003 is symmetrically provided with exhaust holes, and one side of each exhaust hole is connected to a deflection plate 1010 by a hinge, and the top inner wall of the hollow plate 1003 near the deflection plate 1010 is fixedly connected to a mounting rod 1018, and one side of the mounting rod 1018 is fixedly connected to a connecting spring 1019 at an equal distance, and one end of the connecting spring 1019 is fixedly connected to the bottom of the adjacent deflection plate 1010, and the hollow plate 1003 near both ends is fixedly connected to the bottom of the hollow plate 1003. The top is fixedly connected to a hydraulic cylinder 2 1013, the output end of the hydraulic cylinder 2 1013 is fixedly connected to a limiting pressure plate 1009, both sides of the lower mold 2 are fixedly connected to a pump ring frame 1002, the interiors of the two pump ring frames 1002 are fixedly connected to an air pump 1001, the air delivery end of the air pump 1001 is fixedly connected to an air delivery pipe, one end of the air delivery pipe is inserted into the interior of the hollow plate 1003, and a pipe groove 1014 is opened at the air delivery pipe of the hollow plate 1003, and the air delivery pipe is located in the pipe groove 1014.

[0097] A method for using a casting production mold, using the casting production mold as described above, comprises the following steps:

[0098] Step 1: Adjust the press 6 to drive the upper mold 3 down to fit with the lower mold 2, and then start filling with molten liquid;

[0099] Step 2: After the molten liquid is filled, the forward and reverse motors 1209 are started to drive the intermediate tube 1203 and the operating sleeve 1207 to exchange positions. Then, the hydraulic cylinder 3 1223 is adjusted to drive the intermediate extrusion column 1208 to press down to a position parallel to the bottom of the casting tube 13. During the downward pressure, the excess molten liquid inside the upper mold 3 and the lower mold 2 squeezes the lifting ring 1222, causing the self-adjusting spring rod 1221 to be compressed, and the lifting ring 1222 moves to above the opening of the collection channel 1218 at the bottom. The extraction pump 1214 is started to collect excess molten liquid through the collection channel 1218. As the molten liquid is discharged, the interaction force between the pressure plate 1220 and the pressure sensor 1226 gradually decreases. When it drops to a fixed value, the hydraulic cylinder 1229 is adjusted to drive the pressing column 1228 to contact and squeeze the lifting ring 1222, causing the lifting ring 1222 to gradually descend to the same level as the middle squeezing column 1208, completing the molten liquid discharge operation.

[0100] Step 3: After the molten liquid inside the casting tube 13 is processed, the molding operation begins. After the valve is formed, it needs to be cooled. The hydraulic cylinder 1008 is adjusted to drive the blocking plate 1004 to move away from the bottom of the connection between the lower mold 2 and the connecting slot 9. The air pump 1001 is started. The air pump 1001 introduces external gas into the hollow plate 1003. The gas pushes the deflection plate 1010, causing the deflection plate 1010 to deflect upward. The gas slowly escapes through the various exhaust holes to the connection between the lower mold 2 and the connecting slot 9 and gradually enters the lower mold 2, accelerating The valve inside the lower mold 2 is cooled and formed. After cooling and forming, the hydraulic cylinder 2 1013 is adjusted to drive the limit pressure plate 1009 to advance, thereby pushing each deflection plate 1010 to reset it. At this time, the gas introduced into the hollow plate 1003 by the air pump 1001 flows to the middle cylinder 1012, and the lifting head 1011 on the middle cylinder 1012 is passively lifted. As more and more gas is introduced, the pushing force exerted by the lifting head 1011 on the valve inside the lower mold 2 becomes greater and greater, thereby lifting the valve through the lifting head 1011 to complete the rapid discharge of the valve.

[0101] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A casting production mold, characterized in that: include: base; The upper rack has mounting posts fixedly connected to the four corners below it, and the mounting posts are fixedly connected to the top of the base; A lower mold is arranged on the top of the base; Upper mold: There are two presses symmetrically distributed on the bottom of the upper rack, and the upper mold is fixedly connected to the output ends of the two presses; A plurality of positioning cylinders are arranged on the base near the top of each mounting column, each of which has a positioning rod inserted therein, and the top end of the positioning rod is fixedly connected to the top of the upper mold; The operating slot is opened on the top of the upper mold; A casting pipe is provided in the casting hole provided in the upper mold and is connected to the operating slot; The gate processing mechanism is arranged inside the operating slot; The connecting slot is opened near the bottom of the lower mold; A material-cutting auxiliary mechanism is provided inside the communicating slot; The gate processing mechanism includes: The butt-jointed pipe has an outer side wall fixedly connected to a connecting frame, and the bottom of the connecting frame is fixedly connected to the outer side wall of the casting pipe; The forward and reverse motor is arranged on the inner wall of the bottom of the casting pipe near the operating slot, and its output shaft is fixedly connected to the drive shaft through a coupling, and the top end of the drive shaft is fixedly connected to the rotating connecting frame; The operating sleeve is arranged on the side of the rotating connecting frame away from the docking pipe; The intermediate pipe is arranged on the side of the rotating frame away from the operating sleeve and is located between the butt joint pipe and the casting pipe; The reinforcement ring rail is arranged on the inner wall of the bottom where the operation slot is located outside the forward and reverse motors. Two reinforcement slide bars are slidably connected inside the reinforcement ring rail, and the top ends of the reinforcement slide bars are fixedly connected to the bottom of the rotating frame. The gate processing mechanism also includes: The middle extrusion column is fixedly connected to the hydraulic cylinder three at equal distances above it, and the top of each hydraulic cylinder three is fixedly connected to a fixing rod, which is fixedly connected to the inner wall of the operating sleeve; An external connecting ring rod is provided on the outer side wall of the middle extrusion column and is fitted with the inner side wall of the operating sleeve; The lifting ring and the inner wall of the operating sleeve are symmetrically provided with lifting grooves, and the interiors of the two lifting grooves are slidably connected with lifting slide rods. The lifting ring is fixedly connected to the outer walls of the two lifting slide rods, and the lifting ring fits the outer wall of the middle extrusion column and the inner wall of the operating sleeve; The bottom of the external ring rod is annularly distributed with a self-adjusting spring rod, and the bottom ends of the self-adjusting spring rods are fixedly connected to the inside of the lifting ring. The top of the external ring rod is annularly distributed with an upper lifting frame, and the top of each upper lifting frame is fixedly connected to a hydraulic cylinder 4, and the output end of each hydraulic cylinder 4 is fixedly connected to a pressing column; The bottom inner wall of the operation slot away from the operation sleeve is fixedly connected to a collection box, and the rotating frame is fixedly connected to an extraction pump. A collection channel is opened on the middle extrusion column, and a mounting pipe is fixedly connected to the top of the collection channel. One end of the mounting pipe is connected to the extraction end of the extraction pump, and the delivery end of the extraction pump is fixedly connected to a telescopic hose. One end of the telescopic hose is fixedly connected to a delivery hard pipe, and the delivery hard pipe is inserted into the interior of the collection box. A placement groove is provided at the bottom of the lifting ring, and a pressure sensor is distributed in a ring shape on the top inner wall of the placement groove. A telescopic connecting rod is distributed in a ring shape on the top inner wall of the placement groove. The bottom of the telescopic connecting rod is fixedly connected to the same pressure plate. The lifting ring is located outside the collection channel.

2. A casting production mold according to claim 1, characterized in that: The blanking auxiliary mechanism includes: Two blocking plates are arranged below the connection point between the connecting slot hole and the casting slot of the lower mold, and the two blocking plates are fixedly connected to the opposite sides thereof with an adjusting plate; Two mounting brackets are symmetrically distributed on the top inner wall of the connecting slot, and hydraulic cylinders 1 are fixedly connected at equal distances on opposite sides of the two mounting brackets, and the output ends of multiple hydraulic cylinders 1 on one side are fixedly connected to one side of the same adjustment plate; The hollow plate is arranged on the bottom inner wall of the communicating slot below the two blocking plates, and has sealing grooves on both sides. A sealing plug-in plate is fixedly connected to the side of the adjusting plate facing the sealing groove, and the sealing plug-in plate is inserted into the interior of the sealing groove.

3. A casting production mold according to claim 2, characterized in that: The blanking auxiliary mechanism also includes: The middle cylinder is arranged in the mounting hole opened at the center line of the hollow plate; The inner frame is arranged on the inner side wall of the middle tube near the bottom end, and the top of the inner frame is fixedly connected with a telescopic column; A jacking head, which is set on the top of the telescopic column; The sealing ring is arranged at the bottom of the lifting head and fits with the inner wall of the middle cylinder.

4. A casting production mold according to claim 3, characterized in that: The top of the hollow air plate is symmetrically provided with long exhaust holes, and one side of each long exhaust hole is connected to a deflection plate by a hinge, the top inner wall of the hollow air plate near the deflection plate is fixedly connected to a mounting rod, one side of the mounting rod is fixedly connected to a connecting spring at equal distances, one end of the connecting spring is fixedly connected to the bottom of the adjacent deflection plate, the top of the hollow air plate near both ends is fixedly connected to a hydraulic cylinder 2, the output end of the hydraulic cylinder 2 is fixedly connected to a limiting pressure plate, both sides of the lower mold are fixedly connected to pump ring frames, the interior of the two pump ring frames are fixedly connected to an air pump, the air delivery end of the air pump is fixedly connected to an air delivery pipe, one end of the air delivery pipe is plugged into the interior of the hollow air plate, the hollow air plate is provided with a pipe groove at the air delivery pipe, and the air delivery pipe is located in the pipe groove.

5. A method for using a casting production mold, using the casting production mold according to claim 4, characterized in that: The following steps are involved: Step 1: Adjust the press to drive the upper mold down to fit with the lower mold, and then start filling with molten liquid; Step 2: After the molten liquid is filled, the forward and reverse motors are started to drive the intermediate tube and the operating sleeve to exchange positions, and then the hydraulic cylinder 3 is adjusted to drive the intermediate extrusion column to press down to a position parallel to the bottom of the casting tube. During the downward pressure, the excess molten liquid inside the upper mold and the lower mold squeezes the lifting collar, so that the self-adjusting spring rod is compressed, and the lifting collar moves to above the opening of the collection channel below. The extraction pump is started, and the extraction pump collects the excess molten liquid through the collection channel. As the molten liquid is discharged, the interaction force between the pressure plate and the pressure sensor gradually decreases. When it drops to a fixed value range, the hydraulic cylinder 4 is adjusted to drive the pressing column to contact the lifting collar and squeeze it, so that the lifting collar gradually drops to the same level as the intermediate extrusion column, completing the molten liquid discharge operation; Step 3: After the molten liquid inside the casting tube is processed, the molding operation begins. After the valve is formed, it needs to be cooled. The hydraulic cylinder is adjusted to drive the sealing plate to move away from the bottom of the connection between the lower mold and the connecting slot, and the air pump is started. The air pump introduces external gas into the hollow plate. The gas pushes the deflection piece, causing the deflection piece to deflect upward. The gas slowly escapes through the exhaust holes to the connection between the lower mold and the connecting slot and gradually enters the lower mold, accelerating the cooling and molding of the valve inside the lower mold. After cooling and molding, the hydraulic cylinder is adjusted to drive the limit pressure plate to advance, thereby pushing each deflection piece to reset it. At this time, the gas introduced into the hollow plate by the air pump flows to the middle tube, and the lifting head on the middle tube is passively lifted. As more and more gas is introduced, the driving force of the lifting head on the valve inside the lower mold becomes greater and greater, thereby lifting the valve through the lifting head to complete the rapid blanking of the valve.

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