Low-temperature wax molding injection device for investment casting of automobile parts

Abstract

The invention discloses an automobile part investment casting low-temperature wax molding injection device, which relates to the technical field of investment casting, and comprises a heat preservation outer cylinder and a heat preservation conveying assembly. In the using process, the diaphragms are arranged at the two ends of the pump body correspondingly, through reciprocating motion of the diaphragms on the two sides, alternate conveying of liquid media in the water outlet pipe and the discharging pipe can be synchronously achieved, and the input end of the water outlet pipe is connected to the left side of a space formed by the opposite faces of an annular plate and a partition plate; the input end of the discharging pipe is connected to the side face of the bottom of the stirring inner cylinder, through the arrangement of the two-way pumping assembly, in the process that molten cerate is conveyed to a corresponding wax mold injection station from the stirring inner cylinder through the discharging pipe, hot water is synchronously and continuously injected into a hot water interlayer in an interlayer of the heat exchange jacket and the discharging pipe from the filling cavity, and the wax mold is injected into the hot water interlayer; the heat preservation layer arranged outside the heat exchange jacket can effectively slow down loss of heat of hot water, and the phenomenon that cerate in the discharging pipe is solidified due to the influence of temperature difference in the conveying process is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of investment casting, in particular to a low-temperature wax molding injection device for investment casting of automobile parts. Background Art

[0002] Investment casting is also called lost wax casting, which includes the processes of pressing wax, trimming wax, forming trees, dipping slurry, melting wax, pouring molten metal and post-processing. Lost wax casting is to use wax to make a wax mold of the parts to be cast, and then apply mud on the wax mold, which is a mud mold. After the mud mold is dried, it is put into hot water to melt the wax mold inside. The mud mold with the melted wax mold is taken out and baked into a ceramic mold. Once baked, a pouring port is generally left when making the mud mold, and then the molten metal is poured from the pouring port. After cooling, the required parts are made.

[0003] However, when the injection device is in use, the external discharge pipe is often susceptible to solidification due to the influence of temperature difference, which may cause blockage at the discharge port, causing inconvenience to the user and no longer meeting the user's needs.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a low-temperature wax molding injection device for automobile parts investment casting is proposed. Summary of the invention

[0005] The object of the present invention is to provide a low-temperature wax molding injection device for investment casting of automobile parts to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a low-temperature wax molding injection device for investment casting of automobile parts, comprising a heat-insulating outer cylinder and a heat-insulating conveying component, a partition is fixed on the top of the inner part of the heat-insulating outer cylinder, an overhead layer is provided above the partition, and a filling cavity is provided below the partition, heaters are symmetrically fixed on both sides of the middle part of the filling cavity, and a water inlet is connected to the side of the bottom of the filling cavity, a ring plate is fixed on the inner wall of the top of the filling cavity, and a through hole is provided on the right side of the ring plate, and the heat-insulating conveying component is connected to the heat-insulating outer cylinder. On the outside of the left side of the warm outer cylinder, the heat preservation and conveying assembly includes a heat exchange jacket, an insulation layer, a hot water interlayer, a water outlet pipe, a discharge pipe and a one-way valve. The heat exchange jacket is provided with an insulation layer on the outside, and a hot water interlayer is provided inside the insulation layer. The hot water interlayer is connected to the output end of the water outlet pipe, and the input end of the water outlet pipe is connected to the space formed by the opposite surfaces of the ring plate and the partition plate. A discharge pipe is provided inside the hot water interlayer, and the discharge pipe runs through the bottom side of the filling cavity, and one-way valves are provided at both ends of the discharge pipe and the water outlet pipe.

[0007] Furthermore, a stirring inner cylinder is embedded inside the insulating outer cylinder, and the bottom side of the stirring inner cylinder is connected to the discharge pipe, and the outer wall of the stirring inner cylinder is tightly matched with the inner wall of the hole in the ring plate, and support feet are fixed on both sides of the bottom of the stirring inner cylinder, and the support feet suspend the stirring inner cylinder and the bottom end of the inner insulation outer cylinder.

[0008] Furthermore, a hopper is connected to the left side of the top of the mixing inner cylinder, and the hopper passes through the overhead layer and is exposed to the outside of the heat-insulating outer cylinder.

[0009] Furthermore, a shaft is rotatably mounted inside the mixing inner cylinder, and an impeller coaxial with the middle of the shaft is located in the middle of the space formed by the opposite surfaces of the ring plate and the partition, and a stirring paddle coaxial with the bottom of the shaft is located inside the mixing inner cylinder.

[0010] Furthermore, a linkage slicing assembly is coaxially transmitted at the top of the shaft rod, and the linkage slicing assembly includes a bracket, a limit groove, a flywheel and an eccentric column convex. The roots of the brackets on both sides are fixed to the top plane of the partition, and the inner sides of the brackets on both sides are provided with relatively set limit grooves. Flywheels are rotatably installed at the bottom of the opposite surfaces of the brackets on both sides, and the flywheel is coaxially connected to the top of the shaft rod, and an eccentrically set eccentric column convex is fixed to the flywheel disc surface.

[0011] Furthermore, the linkage slicing assembly also includes a slide plate, and the slide plates are slidably installed inside the brackets on both sides through limiting grooves, and the slide plates are slidably inserted into the adjacent side surfaces of the hopper.

[0012] Furthermore, the linkage slicing assembly also includes a slicing knife and a clamping plate. The slicing knife is bolted to the front end of the slide plate, and an adjacent clamping plate is fixed to the bottom of the rear end of the slide plate, and the adjacent clamping plates cooperate with the eccentric column convex.

[0013] Furthermore, a two-way pumping assembly is connected to the opposite surfaces of the middle of the water outlet pipe and the material outlet pipe, and the two-way pumping assembly includes a pump body, a connecting pipe and a diaphragm. The upper and lower ends of the pump body are bolted with connecting pipes, and the connecting pipes are connected to the reserved holes of the material outlet pipe through flanges and the water outlet pipe, and a diaphragm is sandwiched between the pump body and the connecting pipe.

[0014] Furthermore, the bidirectional pumping assembly also includes a pillar, a gantry, a wheel and an eccentric rod. The side wall of the pump body is fixed with a pillar, and the end of the pillar is welded and fixed with a gantry. The middle part of the gantry is provided with a wheel fixed to the output end of the motor, and an eccentric rod is fixed to the wheel disc with an eccentric arrangement.

[0015] Furthermore, the bidirectional pumping assembly also includes a sliding frame, a connecting rod and a connecting diaphragm. The eccentric rod slides inside the middle groove of the sliding frame, and the upper and lower ends of the sliding frame are fixedly connected with a connecting rod. The connecting rod is slidably matched with the two ends of the gantry, and the end of the connecting rod is provided with a connecting diaphragm that is clamped with the middle part of the diaphragm.

[0016] The present invention provides a low-temperature wax molding injection device for automobile parts investment casting, which has the following beneficial effects:

[0017] 1. During the use of the present invention, the present application sets diaphragms at both ends of the pump body. Through the reciprocating motion of the diaphragms on both sides, the alternating transportation of liquid media in the water outlet pipe and the discharge pipe can be synchronously realized. The input end of the water outlet pipe of the present application is connected to the left side of the space formed by the opposite surfaces of the ring plate and the diaphragm, and the input end of the discharge pipe is connected to the bottom side of the stirring inner cylinder. Through the setting of the two-way pumping component, in the process of transporting the melted wax paste from the stirring inner cylinder to the corresponding wax mold injection station through the discharge pipe, hot water is synchronously and continuously injected from the filling cavity into the hot water interlayer in the heat exchange jacket and the discharge pipe interlayer. The setting of the external insulation layer of the heat exchange jacket can effectively slow down the loss of heat from the hot water, and prevent the wax paste in the discharge pipe from solidifying due to the influence of temperature difference during transportation. It is particularly suitable for investment casting processes with multiple stations or long processing lines.

[0018] 2. During the use of the present invention, when hot water flows through the space formed by the opposite surfaces of the ring plate and the partition plate, it will drive the impeller to rotate, and the kinetic energy of the hot water flow will be converted into mechanical energy of the impeller rotation. Further, the impeller drives the root stirring paddle located in the stirring inner cylinder to rotate through the shaft, so that the density of the wax material is uniform. In addition, the impeller also drives the top flywheel to rotate through the shaft, and the relative gap between the eccentric column convex of the flywheel disk and the rear end clamping plate of the slide plate is matched, so that the rotational motion of the flywheel is converted into the lateral reciprocating motion of the slide plate, thereby driving the slicing knife at the front end of the slide plate to slice the wax block in the hopper, and the melting efficiency of the wax block is accelerated by slicing the wax block. The realization of the stirring and slicing functions of the present application completely depends on the kinetic energy generated by the flow of hot water. By converting the kinetic energy of the hot water flow into the mechanical energy of the impeller rotation, while improving the uniformity of the heating of the stirring inner cylinder, the density of the wax material is uniform through the stirring of the stirring rod, and further the wax block raw material put into the hopper can be continuously sliced, and the high degree of automation is achieved while the various components are precisely matched and the linkage is strong, which effectively reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall external structure of the device of the present invention;

[0020] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the device of the present invention;

[0021] Figure 3 This is a schematic diagram of the combined structure of the heat-insulating outer cylinder of the present invention;

[0022] Figure 4 This is a schematic diagram of the explosion structure of the heat-insulating outer cylinder of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the linkage slicing component of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the heat preservation conveying assembly of the present invention;

[0025] Figure 7 It is a schematic diagram of the structure of the bidirectional pumping assembly of the present invention.

[0026] In the figure: 1, insulation outer cylinder; 2, partition; 3, overhead layer; 4, filling cavity; 5, heater; 6, water inlet; 7, ring plate; 8, through hole; 9, stirring inner cylinder; 10, support foot; 11, hopper; 12, shaft; 13, impeller; 14, stirring paddle; 15, linkage slicing assembly; 1501, bracket; 1502, limit groove; 1503, flywheel; 1504, eccentric column convex; 1505, slide plate; 1506, slicing knife; 1507, clamping plate; 16 , insulation and conveying assembly; 1601, heat exchange jacket; 1602, insulation layer; 1603, hot water interlayer; 1604, water outlet pipe; 1605, discharge pipe; 1606, one-way valve; 17, two-way pumping assembly; 1701, pump body; 1702, connecting pipe; 1703, diaphragm; 1704, support; 1705, gantry; 1706, runner; 1707, eccentric rod; 1708, slide frame; 1709, connecting rod; 1710, connecting diaphragm. DETAILED DESCRIPTION

[0027] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following embodiments are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0028] See also Figures 1 to 6The present invention provides a technical solution: a low-temperature wax molding injection device for investment casting of automobile parts, comprising an insulation outer cylinder 1 and an insulation conveying component 16, a partition 2 is fixed to the top of the insulation outer cylinder 1, an overhead layer 3 is opened above the partition 2, and a filling cavity 4 is opened below the partition 2, heaters 5 are symmetrically fixed on both sides of the middle of the filling cavity 4, and a water inlet 6 is connected to the bottom side of the filling cavity 4, a ring plate 7 is fixed to the inner wall of the top of the filling cavity 4, and a through hole 8 is opened on the right side of the ring plate 7, the insulation conveying component 16 is connected to the left side of the insulation outer cylinder 1, and the insulation conveying component 16 includes a heat exchange jacket 1601, an insulation layer 1602 , a hot water interlayer 1603, a water outlet pipe 1604, a discharge pipe 1605 and a one-way valve 1606, a heat-exchange jacket 1601 is provided with a heat-insulating layer 1602 on the outside, and a hot water interlayer 1603 is provided inside the heat-insulating layer 1602, the hot water interlayer 1603 is communicated with the output end of the water outlet pipe 1604, and the input end of the water outlet pipe 1604 is connected to the space formed by the opposite surfaces of the ring plate 7 and the partition plate 2, a discharge pipe 1605 is provided inside the hot water interlayer 1603, and the discharge pipe 1605 runs through the bottom side of the filling cavity 4, and the discharge pipe 1605 and the two ends of the water outlet pipe 1604 are provided with a one-way valve 1606 correspondingly;

[0029] The specific operation is as follows: the input end of the water outlet pipe 1604 of the present application is connected to the left side of the space formed by the opposite surfaces of the ring plate 7 and the partition 2, and the input end of the discharge pipe 1605 is connected to the bottom side of the stirring inner cylinder 9. Through the setting of the two-way pumping component 17, in the process of transporting the melted wax paste from the stirring inner cylinder 9 to the corresponding wax mold injection station through the discharge pipe 1605, hot water is simultaneously continuously injected from the filling cavity 4 into the hot water interlayer 1603 in the interlayer of the heat exchange jacket 1601 and the discharge pipe 1605. The setting of the external insulation layer 1602 of the heat exchange jacket 1601 can effectively slow down the loss of heat from the hot water, and prevent the wax paste in the discharge pipe 1605 from solidifying due to the influence of temperature difference during the transportation process, which is particularly suitable for multi-station or long-processing line investment casting processes;

[0030] See also Figures 2 to 5, a stirring inner cylinder 9 is embedded in the insulation outer cylinder 1, and the bottom side of the stirring inner cylinder 9 is connected to the discharge pipe 1605, and the outer wall of the stirring inner cylinder 9 is tightly matched with the inner wall of the hole in the ring plate 7, and the supporting feet 10 are fixed on both sides of the bottom of the stirring inner cylinder 9, and the supporting feet 10 suspend the stirring inner cylinder 9 and the bottom end of the insulation outer cylinder 1, and the hopper 11 is connected to the left side of the top of the stirring inner cylinder 9, and the hopper 11 passes through the overhead layer 3 and penetrates the outside of the insulation outer cylinder 1, and a shaft rod 12 is rotatably installed inside the stirring inner cylinder 9, and the coaxial impeller 13 in the middle of the shaft rod 12 is located in the middle of the space formed by the opposite surfaces of the ring plate 7 and the partition plate 2, and the coaxial stirring paddle 14 at the bottom of the shaft rod 12 is located inside the stirring inner cylinder 9, and the top of the shaft rod 12 is coaxially driven with a linkage slicing assembly 15, which includes a bracket 1501, a limit groove 1502, a flywheel 1503 and an eccentric column convex 1504, and the brackets on both sides The root of 1501 is fixed to the top plane of the partition 2, and the inner sides of the two side brackets 1501 are provided with relatively set limiting grooves 1502, and the flywheels 1503 are rotatably installed at the bottom of the opposite surfaces of the two side brackets 1501, and the flywheel 1503 is coaxially connected with the top of the shaft rod 12, and an eccentric eccentric column convex 1504 is fixed to the disk of the flywheel 1503, and the linkage slicing assembly 15 also includes a slide plate 1505, and the slide plate 1505 is slidably installed inside the two side brackets 1501 through the limiting grooves 1502, and the slide plate 1505 is slidably plugged into the adjacent side of the hopper 11, and the linkage slicing assembly 15 also includes a slicing knife 1506 and a clamping plate 1507, and the slicing knife 1506 is fixed by bolts at the front end of the slide plate 1505, and an adjacent clamping plate 1507 is fixed at the bottom of the rear end of the slide plate 1505, and the adjacent clamping plate 1507 cooperates with the eccentric column convex 1504;

[0031] The specific operation is as follows: the water inlet 6 on the bottom side of the heat-insulating outer cylinder 1 is connected to the water supply network pipe, and the cold water is located in the filling chamber 4 formed by the interlayer of the heat-insulating outer cylinder 1 and the stirring inner cylinder 9 and is heated by the heater 5. The stirring inner cylinder 9 is heated in water isolation so that the wax material is heated more evenly. The negative pressure generated by the suction chamber of the two-way pumping component 17 located in the outlet pipe 1604 drives the water in the filling chamber 4 to flow from the space below the partition 2 through the through hole 8 through the ring plate 7, and further flows through the space formed by the opposite surface of the ring plate 7 and the partition 2, and finally passes into the heat exchange jacket 1601 through the outlet pipe 1604 discharge chamber. The hot water flowing in the filling chamber 4 further increases the uniformity of heating of the stirring inner cylinder 9, and the hot water will drive the impeller 13 to rotate when flowing through the space formed by the opposite surface of the ring plate 7 and the partition 2, and convert the kinetic energy of the hot water flowing into the mechanical energy of the impeller 13 rotation. Further, the impeller 13 drives the root stirring paddle 14 located in the stirring inner cylinder 9 to rotate through the shaft 12, so that The density of the wax material is uniform. In addition, the impeller 13 also drives the top flywheel 1503 to rotate through the shaft 12. The relative gap between the eccentric column convex 1504 on the flywheel 1503 disk and the rear end clamping plate 1507 of the slide plate 1505 is matched to convert the rotational motion of the flywheel 1503 into the lateral reciprocating motion of the slide plate 1505, thereby driving the slicing knife 1506 at the front end of the slide plate 1505 to slice the wax block in the hopper 11. The melting efficiency of the wax block is accelerated by slicing the wax block. The stirring and slicing functions of the present application are completely dependent on the kinetic energy generated by the flow of hot water. The kinetic energy of the flow of hot water is converted into the mechanical energy of the rotation of the impeller 13. While improving the uniformity of the heating of the stirring inner cylinder 9, the density of the wax material is uniform through the stirring of the stirring rod, and further the wax block raw material put into the hopper 11 can be continuously sliced, and the various components are precisely matched and have strong linkage, which effectively reduces the production cost.

[0032] See also Figure 7The water outlet pipe 1604 and the discharge pipe 1605 are connected to the opposite surfaces in the middle thereof with a two-way pumping assembly 17, the two-way pumping assembly 17 comprising a pump body 1701, a connecting pipe 1702 and a diaphragm 1703, the upper and lower ends of the pump body 1701 are bolted with connecting pipes 1702, and the connecting pipes 1702 are connected to the reserved holes of the discharge pipe 1605 through flanges and the water outlet pipe 1604, and a diaphragm 1703 is sandwiched between the pump body 1701 and the connecting pipe 1702, the two-way pumping assembly 17 also comprises a pillar 1704, a gantry 1705, a runner 1706 and an eccentric rod 1707, and the side wall of the pump body 1701 is fixed with pillars 1704, A gantry 1705 is welded and fixed at the end of the pillar 1704, a runner 1706 fixed to the output end of the motor is arranged in the middle of the gantry 1705, and an eccentric rod 1707 eccentrically arranged is fixed on the disk of the runner 1706, and the bidirectional pumping assembly 17 also includes a sliding frame 1708, a connecting rod 1709 and a connecting diaphragm 1710, the eccentric rod 1707 slides inside the middle groove of the sliding frame 1708, and the upper and lower ends of the sliding frame 1708 are fixedly connected with the connecting rod 1709, the connecting rod 1709 is slidably matched with the two ends of the gantry 1705, and the end of the connecting rod 1709 is provided with a connecting diaphragm 1710 that is clamped with the middle of the diaphragm 1703;

[0033] The specific operation is as follows. When in use, the motor is started to drive the wheel 1706 to rotate. The eccentric rod 1707 eccentrically arranged on the disk of the wheel 1706 slides in the groove located in the middle of the slide frame 1708, and converts the rotational motion of the wheel 1706 into the longitudinal reciprocating motion of the connecting rod 1709 at the upper and lower ends of the slide frame 1708, and further drives the diaphragm 1703 to produce reciprocating deformation through the connecting diaphragm 1710 at the end of the connecting rod 1709. The present application arranges diaphragms 1703 at both ends of the pump body 1701, and the reciprocating motion of the diaphragms 1703 on both sides can synchronously realize the alternating transportation of liquid media in the water outlet pipe 1604 and the material outlet pipe 1605.

[0034] In summary, when using the low-temperature wax molding injection device for investment casting of automotive parts, the water inlet 6 on the bottom side of the insulation outer cylinder 1 is connected to the water supply network pipe, and the cold water is located in the filling cavity 4 formed by the interlayer of the insulation outer cylinder 1 and the stirring inner cylinder 9 and is heated by the heater 5. The stirring inner cylinder 9 is heated in water isolation so that the wax material is heated more evenly. When in use, the motor is started to drive the rotating wheel 1706 to rotate. The eccentric rod 1707 eccentrically arranged on the disk of the rotating wheel 1706 slides in the groove in the middle of the sliding frame 1708, and converts the rotational motion of the rotating wheel 1706 into the longitudinal reciprocating motion of the connecting rods 1709 at the upper and lower ends of the sliding frame 1708, and further drives the diaphragm 1703 to produce reciprocating deformation through the connecting diaphragm 1710 at the end of the connecting rod 1709. The present application achieves this by connecting the two ends of the pump body 1701 Diaphragms 1703 are provided at both ends. Through the reciprocating motion of the diaphragms 1703 on both sides, the alternating transportation of the liquid medium in the water outlet pipe 1604 and the discharge pipe 1605 can be synchronously realized. The input end of the water outlet pipe 1604 of the present application is connected to the left side of the space formed by the opposite surfaces of the ring plate 7 and the partition 2, and the input end of the discharge pipe 1605 is connected to the bottom side of the stirring inner cylinder 9. Through the setting of the two-way pumping component 17, in the process of transporting the melted wax paste from the stirring inner cylinder 9 to the corresponding wax mold injection station through the discharge pipe 1605, hot water is synchronously and continuously injected from the filling cavity 4 into the hot water interlayer 1603 in the interlayer of the heat exchange jacket 1601 and the discharge pipe 1605. The setting of the external insulation layer 1602 of the heat exchange jacket 1601 can effectively slow down the loss of heat of the hot water and prevent the discharge pipe from leaking. The wax paste in 1605 solidifies due to the temperature difference during transportation, which is particularly suitable for investment casting processes with multiple stations or long processing lines. The negative pressure generated by the suction chamber of the two-way pumping component 17 located in the outlet pipe 1604 drives the water in the filling chamber 4 to flow from the space below the partition 2 through the through hole 8 through the ring plate 7, and further flows through the space formed by the opposite surface of the ring plate 7 and the partition 2, and finally enters the heat exchange jacket 1601 through the outlet pipe 1604 discharge chamber. The hot water flowing in the filling chamber 4 further increases the uniformity of heating of the stirring inner cylinder 9, and the hot water drives the impeller 13 to rotate when flowing through the space formed by the opposite surface of the ring plate 7 and the partition 2, and converts the kinetic energy of the hot water flowing into the mechanical energy of the impeller 13 rotation, and further the impeller 13 is driven by the shaft 12 drives the root stirring paddle 14 located in the stirring inner cylinder 9 to rotate, so that the density of the wax material is uniform. In addition, the impeller 13 also drives the top flywheel 1503 to rotate through the shaft 12. Through the cooperation of the relative gap between the eccentric column convex 1504 of the flywheel 1503 disk and the rear end clamping plate 1507 of the slide plate 1505, the rotational motion of the flywheel 1503 is converted into the lateral reciprocating motion of the slide plate 1505, thereby driving the slicing knife 1506 at the front end of the slide plate 1505 to slice the wax block in the hopper 11, and accelerate the melting efficiency of the wax block by slicing the wax block. The realization of the stirring and slicing functions of the present application completely depends on the kinetic energy generated by the flow of hot water. By converting the kinetic energy of the flow of hot water into the mechanical energy of the rotation of the impeller 13, while improving the uniformity of heating of the stirring inner cylinder 9,The density of the wax material is made uniform by stirring with the stirring rod, and further the wax block raw material put into the hopper 11 can be processed by continuous slicing, achieving high automation while each component is precisely matched and has strong linkage, effectively reducing production costs.

[0035] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various implementations with various modifications suitable for specific uses.

Claims

1. A low temperature wax molding injection device for automobile parts investment casting, characterized in that: The invention comprises a heat-insulating outer cylinder (1) and a heat-insulating conveying assembly (16), wherein a partition (2) is fixed at the top of the inner part of the heat-insulating outer cylinder (1), an overhead layer (3) is provided above the partition (2), and a filling cavity (4) is provided below the partition (2), heaters (5) are symmetrically fixed on both sides of the middle part of the filling cavity (4), and a water inlet (6) is connected to the bottom side of the filling cavity (4), a ring plate (7) is fixed to the inner wall of the top of the filling cavity (4), and a through hole (8) is provided on the right side of the ring plate (7), and the heat-insulating conveying assembly (16) is connected to the left side of the heat-insulating outer cylinder (1), and the heat-insulating conveying assembly (16) comprises a heat exchange jacket (1601), a heat-insulating layer (1602), a hot water interlayer (1603), a water outlet The heat exchange jacket (1601) is provided with an insulation layer (1602) on the outside, and a hot water interlayer (1603) is provided inside the insulation layer (1602). The hot water interlayer (1603) is connected to the output end of the water outlet pipe (1604), and the input end of the water outlet pipe (1604) is connected to the space formed by the opposite surfaces of the ring plate (7) and the partition plate (2). The hot water interlayer (1603) is provided with a discharge pipe (1605), and the discharge pipe (1605) passes through the bottom side of the filling cavity (4), and the discharge pipe (1605) and the water outlet pipe (1604) are provided with a check valve (1606) at both ends.

2. The low temperature wax molding injection device for automobile parts investment casting according to claim 1 is characterized in that: A stirring inner cylinder (9) is embedded inside the heat-insulating outer cylinder (1), and the bottom side of the stirring inner cylinder (9) is connected to the discharge pipe (1605), and the outer wall of the stirring inner cylinder (9) is tightly matched with the inner wall of the hole in the ring plate (7), and supporting feet (10) are fixed on both sides of the bottom of the stirring inner cylinder (9), and the supporting feet (10) suspend the stirring inner cylinder (9) and the bottom end of the heat-insulating outer cylinder (1).

3. The low temperature wax molding injection device for automobile parts investment casting according to claim 2 is characterized in that: The top left side of the mixing inner cylinder (9) is connected to a hopper (11), and the hopper (11) passes through the overhead layer (3) and then penetrates out of the heat-insulating outer cylinder (1).

4. The low temperature wax molding injection device for automobile parts investment casting according to claim 2, characterized in that: A shaft (12) is rotatably mounted inside the mixing inner cylinder (9), and an impeller (13) coaxial with the middle of the shaft (12) is located in the middle of the space formed by the opposite surfaces of the ring plate (7) and the partition (2), and a stirring paddle (14) coaxial with the bottom of the shaft (12) is located inside the mixing inner cylinder (9).

5. The low temperature wax molding injection device for automobile parts investment casting according to claim 4 is characterized in that: A linkage slicing assembly (15) is coaxially driven at the top of the shaft (12), and the linkage slicing assembly (15) comprises a bracket (1501), a limiting groove (1502), a flywheel (1503) and an eccentric column convex (1504). The roots of the brackets (1501) on both sides are fixed to the top plane of the partition (2), and the inner sides of the brackets (1501) on both sides are provided with relatively arranged limiting grooves (1502). Flywheels (1503) are rotatably mounted at the bottom of the opposite surfaces of the brackets (1501) on both sides, and the flywheel (1503) is coaxially connected to the top of the shaft (12), and an eccentric column convex (1504) arranged eccentrically is fixed to the disk surface of the flywheel (1503).

6. The low temperature wax molding injection device for automobile parts investment casting according to claim 5, characterized in that: The linkage slicing assembly (15) further comprises a slide plate (1505), and the slide plates (1505) are slidably mounted inside the brackets (1501) on both sides through limiting grooves (1502), and the slide plates (1505) are slidably plugged into the adjacent side surfaces of the hopper (11).

7. The low temperature wax molding injection device for automobile parts investment casting according to claim 6, characterized in that: The linkage slicing assembly (15) further comprises a slicing knife (1506) and a clamping plate (1507); the slicing knife (1506) is bolted to the front end of the slide plate (1505); an adjacent clamping plate (1507) is fixed to the bottom of the rear end of the slide plate (1505); and the adjacent clamping plate (1507) cooperates with the eccentric column protrusion (1504).

8. The low temperature wax molding injection device for automobile parts investment casting according to claim 1, characterized in that: The water outlet pipe (1604) and the discharge pipe (1605) are connected to opposite surfaces in the middle thereof with a bidirectional pumping assembly (17), and the bidirectional pumping assembly (17) comprises a pump body (1701), a connecting pipe (1702) and a diaphragm (1703). The upper and lower ends of the pump body (1701) are fixed with connecting pipes (1702) by bolts, and the connecting pipes (1702) are connected to the reserved holes of the discharge pipe (1605) through flanges and the water outlet pipe (1604), and a diaphragm (1703) is sandwiched between the pump body (1701) and the connecting pipe (1702).

9. The low temperature wax molding injection device for automobile parts investment casting according to claim 8, characterized in that: The bidirectional pumping assembly (17) further comprises a support (1704), a gantry (1705), a rotating wheel (1706) and an eccentric rod (1707); the support (1704) is fixed to the side wall of the pump body (1701), and the gantry (1705) is welded and fixed to the end of the support (1704); a rotating wheel (1706) fixed to the output end of the motor is arranged in the middle of the gantry (1705), and an eccentric rod (1707) arranged eccentrically is fixed to the disk of the rotating wheel (1706).

10. The low temperature wax molding injection device for automobile parts investment casting according to claim 9, characterized in that: The bidirectional pumping assembly (17) also includes a sliding frame (1708), a connecting rod (1709) and a connecting diaphragm (1710), wherein the eccentric rod (1707) slides inside a middle groove of the sliding frame (1708), and the sliding frame (1708) is fixedly connected with a connecting rod (1709) at both ends, and the connecting rod (1709) is slidably matched with both ends of the gantry (1705), and a connecting diaphragm (1710) is provided at the end of the connecting rod (1709) to be clamped with the middle of the diaphragm (1703).

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