Precision investment casting device and method

Abstract

The invention relates to the technical field of investment casting, in particular to a precision investment casting device which comprises a base, two supporting frames are symmetrically and fixedly mounted at the top end of the base, a shaking assembly is arranged between the two supporting frames, a collecting box is arranged at the tops of the two supporting frames, and a filtering and unblocking assembly is arranged in the collecting box. Two limiting covers are symmetrically and transversely installed on the outer portion of the top end of the collecting box in a sliding and clamping mode, and through cooperative use and operation of a moving assembly, a partition assembly, a limiting adjusting assembly and a plurality of temperature control heaters, the outer portion of the special-shaped fired mold can be isolated and divided into a plurality of heating areas; therefore, different parts can be heated at different temperatures in a targeted manner according to the specific shape of the special-shaped fired mold and the distribution condition of the wax mold, so that the wax mold can be quickly and uniformly melted and discharged from the mold shell, the shelling efficiency is improved, the shelling time is shortened, and the better shelling quality is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of investment casting, in particular to an investment precision casting device and a method thereof. Background Art

[0002] Investment casting is also known as dewax casting or lost wax casting. Investment casting can produce precise and complex castings that are close to the final shape of the product.

[0003] In investment casting, a fusible mold is first pressed out with a metal mold on a wax injection machine, and then multiple layers of refractory material are coated on the fusible mold. The refractory coating dries and hardens to form a shell. The shell is baked to make it solid, and the molten liquid metal is poured into the shell. After the liquid metal cools and solidifies in the shell, it is shelled to obtain the required metal parts.

[0004] However, when the existing investment casting devices perform dewaxing operations on some special-shaped investment patterns, due to their complex shapes, the distribution of the wax pattern in the mold shell is also relatively complex. The complex shape of the special-shaped investment pattern makes the heat conduction path and speed in the mold shell inconsistent, and the heat conduction in the complex winding parts is relatively difficult. A higher temperature is required to fully melt the wax and flow out. The heat conduction in the parts with a relatively gentle and vertical design is relatively easy, and the dewaxing can be completed at a lower temperature. If the temperature is too high, it may cause local overheating of the mold shell, affecting the quality of the mold shell. The traditional heating dewaxing device cannot reasonably adjust the heating power of each area according to the shape and structure of the mold shell, so that the mold shell cannot be evenly heated during the dewaxing process, reducing the quality and efficiency of the dewaxing. Summary of the invention

[0005] The object of the present invention is to provide a precision investment casting device and method thereof, so as to solve the problem that the traditional heating dewaxing device proposed in the above background technology cannot reasonably adjust the heating power of each area according to the shape and structure of the mold shell, so that the mold shell cannot be heated evenly during the shelling process, thereby reducing the quality and efficiency of the shelling.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a kind of investment casting device, comprising a base, two support frames are symmetrically and fixedly installed on the top of the base, a shaking assembly is arranged between the two support frames, a collecting box is arranged on the top of the two support frames, a filtering and clearing assembly is arranged inside the collecting box, two limit covers are symmetrically and laterally slidably installed on the top of the collecting box, an installation groove is penetrated through the inside of one side of the two limit covers, a folding thermal insulation curtain is fixedly connected to the inside of the installation groove, a moving assembly is arranged on the outside of one side of the collecting box close to the two limit covers, a plurality of positioning rods are arranged laterally at equal intervals between the outside of one side of the two limit covers, and a partition assembly is arranged at both ends of the plurality of positioning rods; the partition assembly comprises a connecting frame, the connecting frame is fittedly arranged on the outside of one side of the limit cover close to the positioning rod, and a limit adjustment assembly is arranged on the outside of one side of the connecting frame.

[0007] Furthermore, the two limiting covers are both C-shaped when viewed from above, a limiting hole is embedded inside one end of the connecting frame close to the positioning rod, both ends of the positioning rod are slidably installed inside the limiting hole, a positioning plate is fixedly connected to the inside of one side of the folding thermal insulation curtain close to the connecting frame, one side of the positioning plate is fixedly connected to one side of the connecting frame, and a temperature-controlled heater is fixedly installed inside one side of the limiting cover close to between each two connecting frames.

[0008] Furthermore, a plurality of heat insulation boards are slidably installed transversely and evenly spaced inside the positioning plate, and every two adjacent heat insulation boards are connected by sliding engagement. A positioning block is fixedly installed on the outside of one side of each heat insulation board close to the connecting frame, and a tension spring is fixedly connected and installed between each positioning block and the positioning plate.

[0009] Furthermore, the limit adjustment assembly includes a limit rod, which is longitudinally fixedly installed on the outside of the limit cover close to the connecting frame through a bracket, and the limit rod is slidably installed between the inside of one side of the connecting frame, and a plurality of interference holes are embedded and opened at equal intervals on the outside of the limit rod, and a fixed block is fixed on the top side of the connecting frame close to one of the interference holes, and a interference column is slidably installed laterally inside the fixed block, one end of the interference column is abutted against the inside of one of the interference holes, and a compression spring is sleeved on the outside of one side of the interference column, and both ends of the compression spring are respectively installed on the outside of the fixed block and one side of the interference column.

[0010] Furthermore, the moving component includes a bidirectional threaded rod and a stepper motor. The bidirectional threaded rod is installed on the outside of one side of the collection box through a bracket for transverse rotation. The stepper motor is fixedly installed on the outside of one side of the collection box. The output end of the stepper motor is coaxially fixed with one end of the bidirectional threaded rod. Limit blocks are fixedly provided on one side of the two limit covers close to the bidirectional threaded rod, and one side of the limit blocks is installed on the outside of one side of the bidirectional threaded rod through a thread.

[0011] Furthermore, the shaking assembly includes a driving motor and a connecting column, the driving motor is fixedly mounted on the outside of the top end of the base between the two supporting frames, one side of the bottom end of the connecting column is fixedly mounted on the top end of the output shaft of the driving motor, and the connecting column is arranged in an inverted and inclined 7-shape.

[0012] Furthermore, the top of the connecting column is fixedly installed in the middle position of the bottom of the collecting box, and the two support frames are rotatably engaged with auxiliary blocks installed on one side near the top of the connecting column, and connecting blocks are fixedly connected between the two side edges of the two auxiliary blocks, and the connecting column is fixedly installed on one side near the connecting block, and one end of the rotating column passes through and is rotatably engaged with the inside of one side of the connecting block.

[0013] Furthermore, the filtering and clearing assembly includes a filter plate and two movable frames, the filter plate is fixedly installed inside one side of the collecting box, the two movable frames are symmetrically slidably engaged and installed inside one side of the collecting box near the bottom end of the filter plate, a plurality of filter holes are evenly spaced through the inside of the filter plate, one end of the two movable frames is fixed to one end of the limit block on the corresponding side, a plurality of installation cavities are evenly spaced inside the two movable frames, and through holes are opened inside the top ends of the two movable frames located at the plurality of installation cavities.

[0014] Furthermore, a ejector pin is longitudinally slidably installed inside the through hole, a stopper is fixedly installed at one end of the ejector pin located inside the installation cavity, an extrusion spring is connected and fixed between the bottom end of the stopper and the bottom inner wall of the installation cavity, and the top end of the ejector pin is inserted into the corresponding filter hole.

[0015] The present invention also provides a method for using the investment casting device, comprising the following steps:

[0016] S1: First, place the shell-made special-shaped investment mold between two limit covers, and then divide and isolate different parts of the special-shaped investment mold into heating areas through the operation of the temperature-controlled heater, the moving component and the separation component, so that the temperature of different parts of the shell can be accurately controlled to melt the wax mold and flow out to form a cavity;

[0017] S2: When the mold is being melted, the shaking component can be controlled to operate. By shaking the whole component, the wax liquid can flow out more easily from the complex parts inside the special-shaped mold under the action of gravity and inertia;

[0018] S3: When the shaking component is shaken, the filter plate will be shaken synchronously, so that the wax liquid can be dispersed to different positions on the filter plate for rapid filtration;

[0019] S4: When dewaxing is completed, the moving assembly is started again to drive the limit covers on both sides to expand and move, so as to facilitate the removal of the dewaxing casting. At the same time, the moving assembly will drive the moving frame to move synchronously, so as to drive multiple ejectors at the top to continuously impact the inside of the filter hole to perform the blockage removal operation.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. Through the coordinated operation of the moving assembly, the separation assembly, the limit adjustment assembly and several temperature control heaters, multiple heating areas can be isolated and divided outside the special-shaped investment pattern. According to the specific shape of the special-shaped investment pattern and the distribution of the wax pattern, different parts can be heated at different temperatures in a targeted manner, so that the wax pattern can be melted quickly and evenly and discharged from the shell, thereby improving the shelling efficiency, shortening the shelling time, and ensuring better shelling quality;

[0022] 2. When in use, the shaking assembly is operated to make the whole body shake, so that the wax liquid in the corners and grooves inside the special-shaped mold can flow out better under the action of gravity and inertia, thereby improving the efficiency of wax discharge and reducing the residual amount of wax liquid in the mold. At the same time, when the whole is shaken, the filter plate inside the collection box will be driven to shake synchronously, so that the outflowing wax liquid can be dispersed to different positions on the filter plate, thereby avoiding the situation where the wax liquid is concentrated on the filter plate, which is conducive to speeding up the filtration of the wax liquid by the filter plate;

[0023] 3. When in use, the mobile component will trigger the filter and unblocking components to run synchronously, so as to clear the filter holes on the filter plate, ensure the subsequent filtering effect, and make the overall use effect of the device better. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 For the present invention Figure 1 The enlarged structural diagram at A in the middle;

[0026] Figure 3 This is a schematic diagram of the three-dimensional structure of the positioning rod and the connecting frame installed in the present invention;

[0027] Figure 4 For the present invention Figure 3 The enlarged structural diagram at B in the middle;

[0028] Figure 5 This is a schematic diagram of the three-dimensional structure of the connection frame and the positioning plate of the present invention;

[0029] Figure 6 For the present invention Figure 5 The enlarged structural diagram at C in the middle;

[0030] Figure 7 A schematic diagram showing a top view of the heat insulation board of the present invention for adaptively clamping a special-shaped investment mold;

[0031] Figure 8 This is a schematic diagram of the three-dimensional structure of the connection block and the rotating column of the present invention;

[0032] Fig. 9 This is a schematic diagram of the front view structure of the drive motor and the connecting column installed in the present invention;

[0033] Fig.10 This is a schematic diagram of the filter plate and the collection box structure of the present invention;

[0034] Fig.11 For the present invention Fig.10 The enlarged structural diagram at D in the middle;

[0035] Fig.12 This is a bottom view schematic diagram of the bidirectional threaded rod of the present invention rotating to drive the limit blocks and the moving frame on both sides to move.

[0036] In the accompanying drawings, the list of components represented by each reference numeral is as follows: 1. Base; 2. Support frame; 3. Drive motor; 4. Collecting box; 5. Positioning rod; 6. Limiting cover; 7. Connecting frame; 8. Limiting hole; 9. Mounting slot; 10. Folding thermal insulation curtain; 11. Positioning plate; 12. Heat insulation board; 13. Positioning block; 14. Tension spring; 15. Limiting rod; 16. Resistance hole; 17. Fixed block; 18. Resistance column; 19. Compression spring; 20. Bidirectional threaded rod; 21. Stepping motor; 22. Limiting block; 23. Filter plate; 24. Temperature control heater; 25. Auxiliary block; 26. Connecting block; 27. Connecting column; 28. Rotating column; 29. ​​Filter hole; 30. Moving frame; 31. Mounting cavity; 32. Through hole; 33. Ejector pin; 34. Stopper; 35. Extrusion spring. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Example 1: Please refer to Figure 1 - Figure 7 A precision investment casting device comprises a base 1, two support frames 2 are symmetrically fixedly installed on the top of the base 1, a collecting box 4 is arranged on the top of the two support frames 2, two limit covers 6 are symmetrically and laterally slidably installed on the top of the collecting box 4, one side of the two limit covers 6 is penetrated by the inside of each of the two limit covers 6, a folding thermal insulation curtain 10 is fixedly connected to the inside of each of the installation grooves 9, a moving component is arranged on the outside of the collecting box 4 near the two limit covers 6, a plurality of positioning rods 5 are arranged laterally at equal intervals between the outside of each of the two limit covers 6, and a partition component is arranged at both ends of each of the plurality of positioning rods 5; the partition component comprises a connecting frame 7, the connecting frame 7 is fittedly arranged on the outside of the limit cover 6 near the positioning rod 5, and a limit adjustment component is arranged on the outside of one side of the connecting frame 7.

[0039] The two limit covers 6 are both C-shaped when viewed from above, and a limit hole 8 is embedded inside one end of the connecting frame 7 close to the positioning rod 5. Both ends of the positioning rod 5 are slidably installed inside the limit hole 8. A positioning plate 11 is fixedly connected to the inside of the folding thermal insulation curtain 10 on one side close to the connecting frame 7, and one side of the positioning plate 11 is fixedly connected to one side of the connecting frame 7. A temperature-controlled heater 24 is fixedly installed inside the limit cover 6 on one side close to between each two connecting frames 7.

[0040] A plurality of heat insulation boards 12 are slidably installed transversely and evenly spaced inside the positioning plate 11, and each two adjacent heat insulation boards 12 are connected by a sliding engagement arrangement. A positioning block 13 is fixedly installed on the outside of one side of each heat insulation board 12 close to the connecting frame 7, and a tension spring 14 is fixedly connected to and installed between each positioning block 13 and the positioning plate 11.

[0041] The limit adjustment assembly includes a limit rod 15, which is longitudinally fixedly installed on the outside of the limit cover 6 near the connecting frame 7 through a bracket. The limit rod 15 and the inside of one side of the connecting frame 7 are penetrated and slidably installed. The outside of the limit rod 15 is embedded with a plurality of interference holes 16 at equal intervals. A fixed block 17 is fixed to the top side of the connecting frame 7 near one of the interference holes 16. A interference column 18 is horizontally penetrated and slidably installed inside the fixed block 17. One end of the interference column 18 is in contact with the inside of one of the interference holes 16. A compression spring 19 is sleeved on the outside of one side of the interference column 18. The two ends of the compression spring 19 are respectively installed on the outside of one side of the fixed block 17 and the interference column 18.

[0042] The moving assembly includes a bidirectional threaded rod 20 and a stepper motor 21. The bidirectional threaded rod 20 is installed on the outside of one side of the collecting box 4 through a bracket for transverse rotation. The stepper motor 21 is fixedly installed on the outside of one side of the collecting box 4. The output end of the stepper motor 21 is coaxially fixed with one end of the bidirectional threaded rod 20. A limiting block 22 is fixedly provided on one side of the two limit covers 6 close to the bidirectional threaded rod 20. One side of the limit block 22 is threaded and installed on the outside of one side of the bidirectional threaded rod 20.

[0043] When the positioning plate 11 is moved, the operator can adjust the spacing between the two positioning rods 5 and the upper and lower positioning plates 11 to ensure that the corresponding parts of the surface of the special-shaped mold can be accurately isolated and divided. When adjusting the spacing, the operator only needs to support the positioning rod 5 with both hands to press down or lift it to drive the positioning plates 11 on both sides to move synchronously. When the positioning plates 11 on both sides move, the existing folding insulation curtains 10 inside the mounting grooves 9 can also be folded or stretched to perform adaptive adjustment to ensure the sealing and heat preservation effect. At the same time, after the positioning rod 5 and the positioning plates 11 are moved into place, the rebound of the compression spring 19 drives the resistance column 18 to resist into the corresponding resistance hole 16 inside the limit rod 15, so as to adjust the positioning rod 5 and the positioning plates 11 on both sides to ensure the stability of the adjusted position. When the adjustment is completed, the operator After the worker places the injection port of the special-shaped mold to be dewaxed downward, the whole is placed between the two limit covers 6, and then the stepper motor 21 on one side is started. The rotation of the output shaft of the stepper motor 21 drives the coaxially fixed bidirectional threaded rod 20 on one side to rotate synchronously, thereby driving the limit blocks 22 on both sides and the limit covers 6 on both sides to move synchronously in the center. In the process of moving in the center, through the sliding installation of several insulation plates 12 and the traction and resistance of the positioning block 13 and the tension spring 14, the side of the special-shaped mold can be adaptively adjusted to clamp and separate, to ensure the overall clamping and separation effect, and at the same time, the scope of application is wide. After the clamping and separation is completed, the heating power of the existing temperature control heater 24 in each area can be reasonably adjusted according to the shape and structure of the corresponding position of the special-shaped mold, so as to heat different parts at different temperatures in a targeted manner, so that the wax mold can be quickly and evenly melted and discharged from the shell, thereby improving the shelling efficiency, shortening the shelling time, and ensuring better shelling quality.

[0044] Example 2: Please refer to Figure 8 - Fig. 9 This embodiment further illustrates the first embodiment, where a shaking assembly is provided between the two support frames 2 .

[0045] The shaking assembly includes a driving motor 3 and a connecting column 27. The driving motor 3 is fixedly mounted on the outside of the top of the base 1 between the two support frames 2. One side of the bottom end of the connecting column 27 is fixedly mounted on the top of the output shaft of the driving motor 3. The connecting column 27 is set in an inverted and tilted 7 shape.

[0046] The top of the connecting column 27 is fixedly installed in the middle position of the bottom of the collecting box 4, and the two support frames 2 are rotatably engaged with auxiliary blocks 25 installed on one side of the top of the connecting column 27, and connecting blocks 26 are fixedly connected between the two side edges of the two auxiliary blocks 25. A rotating column 28 is fixedly installed on one side of the connecting column 27 near the connecting block 26, and one end of the rotating column 28 passes through and is rotatably engaged with the inside of one side of the connecting block 26.

[0047] In this embodiment, when the special-shaped mold is subjected to zone heating and dewaxing operation, the drive motor 3 on one side of the bottom end can be started, and the output shaft of the drive motor 3 can be rotated to drive the connecting column 27 at the top to rotate synchronously. At the same time, the inverted and tilted 7-shaped setting of the connecting column 27, the rotation installation of the auxiliary block 25 on the side, and the limiting guidance of the connecting block 26 and the connecting column 27 are coordinated, so that the connecting column 27 can drive the special-shaped mold clamped between the collecting box 4 and the limiting cover 6 at the top to shake and rotate during rotation. Through the overall shaking, the wax liquid in the corners and grooves inside the special-shaped mold can flow out better under the action of gravity and inertia, thereby improving the efficiency of wax removal and reducing the residual amount of wax liquid in the mold.

[0048] Example 3: Please refer to Fig.10 - Fig.12 This embodiment further illustrates the first embodiment, and a filtering and clearing assembly is provided inside the collecting box 4 .

[0049] The filtering and clearing assembly includes a filter plate 23 and two movable racks 30. The filter plate 23 is fixedly installed inside one side of the collecting box 4. The two movable racks 30 are symmetrically slidably engaged and installed inside one side of the collecting box 4 near the bottom of the filter plate 23. A number of filter holes 29 are evenly spaced through the inside of the filter plate 23. One end of the two movable racks 30 is fixed to one end of the limit block 22 on the corresponding side. A number of installation cavities 31 are evenly spaced inside the two movable racks 30. Through holes 32 are opened inside the top ends of the two movable racks 30 located at the several installation cavities 31.

[0050] A ejector pin 33 is longitudinally slidably installed inside the through hole 32, and a stopper 34 is fixedly installed at one end of the ejector pin 33 located inside the installation cavity 31. An extrusion spring 35 is connected and fixed between the bottom end of the stopper 34 and the bottom inner wall of the installation cavity 31, and the top end of the ejector pin 33 is inserted into the corresponding filter hole 29.

[0051] In this embodiment, when the connecting column 27 drives the special-shaped mold clamped between the collecting box 4 and the limiting cover 6 to shake and rotate, it will drive the filter plate 23 inside the collecting box 4 to shake synchronously, so that the outflowing wax liquid can be dispersed to different positions on the filter plate 23, thereby avoiding the wax liquid from accumulating on the filter plate 23, which is beneficial to speed up the filtration of the wax liquid by the filter plate 23.

[0052] It should be noted that when the output shaft of the stepper motor 21 rotates, it drives the bidirectional threaded rod 20 to rotate synchronously, so that the limit blocks 22 on both sides drive the limit cover 6 to move, which will drive the moving frame 30 at the bottom end of the filter plate 23 to move synchronously. At the same time, through the coordinated installation of the mounting cavity 31, through hole 32, ejector pin 33, stopper 34 and extrusion spring 35 on the moving frame 30, when the moving frame 30 encounters the filter hole 29 on the filter plate 23 during movement, the multiple ejector pins 33 on the top of the moving frame 30 will pop out and hit the inside of the filter hole 29. When contacting the bottom wall of the filter plate 23, the ejector pin 33 will be squeezed and automatically retracted, thereby automatically and orderly clearing the inside of the filter hole 29, and the overall use effect is good.

[0053] The present invention also provides a method for using the investment casting device, comprising the following steps:

[0054] S1: First, the shell-made special-shaped investment mold is placed between two limit covers 6, and then the temperature control heater 24, the moving component and the separation component are operated to divide and isolate different parts of the special-shaped investment mold for heating areas, so that the temperature of different parts of the shell can be accurately controlled, so that the wax mold is melted and flows out to form a cavity;

[0055] S2: When the mold is being melted, the shaking component can be controlled to operate. By shaking the whole component, the wax liquid can flow out more easily from the complex parts inside the special-shaped mold under the action of gravity and inertia;

[0056] S3: When the shaking component is shaken, it will drive the filter plate 23 to shake synchronously, so that the wax liquid flowing out can be dispersed to different positions on the filter plate 23 and filtered quickly;

[0057] S4: When the dewaxing is completed, the moving assembly is started again to drive the limit covers 6 on both sides to expand and move, so as to facilitate the removal of the dewaxing casting. At the same time, the moving assembly will drive the moving frame 30 to move synchronously when it is running, so as to drive the top multiple ejectors 33 to continuously impact the inside of the filter hole 29 to perform the blockage removal operation.

[0058] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0059] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An investment casting device, comprising a base (1), characterized in that: Two support frames (2) are symmetrically fixedly installed on the top of the base (1), a shaking component is arranged between the two support frames (2), a collection box (4) is arranged on the top of the two support frames (2), a filtering and clearing component is arranged inside the collection box (4), two limit covers (6) are symmetrically and laterally slidably installed on the outside of the top of the collection box (4), a mounting groove (9) is penetrated through the inside of one side of the two limit covers (6), and a folding thermal insulation curtain (10) is fixedly connected to the inside of the mounting groove (9), a moving component is arranged on the outside of one side of the collection box (4) close to the two limit covers (6), a plurality of positioning rods (5) are arranged laterally at equal intervals between the outside of one side of the two limit covers (6), and a partition component is arranged at both ends of the plurality of positioning rods (5); The partition assembly comprises a connecting frame (7), the connecting frame (7) being arranged on the outside of one side of the limiting cover (6) close to the positioning rod (5), and a limiting adjustment assembly being arranged on the outside of one side of the connecting frame (7).

2. The investment casting device according to claim 1, characterized in that: The two limiting covers (6) are both C-shaped when viewed from above; a limiting hole (8) is embedded in one end of the connecting frame (7) close to the positioning rod (5); both ends of the positioning rod (5) are slidably mounted inside the limiting hole (8); a positioning plate (11) is fixedly connected to the inside of the folding thermal insulation curtain (10) close to the connecting frame (7); one side of the positioning plate (11) is fixedly connected to one side of the connecting frame (7); and a temperature-controlled heater (24) is fixedly mounted inside the limiting cover (6) close to each of the two connecting frames (7).

3. The investment casting device according to claim 2, characterized in that: A plurality of heat insulation boards (12) are slidably installed transversely and evenly spaced inside the positioning plate (11), and each two adjacent heat insulation boards (12) are connected by a sliding engagement arrangement. A positioning block (13) is fixedly installed on the outside of one side of each heat insulation board (12) close to the connecting frame (7), and a tension spring (14) is fixedly connected and installed between each positioning block (13) and the positioning plate (11).

4. The investment casting device according to claim 1, characterized in that: The limit adjustment component comprises a limit rod (15), the limit rod (15) is longitudinally fixedly mounted on the outside of a side of the limit cover (6) close to the connecting frame (7) through a bracket, the limit rod (15) and the inside of one side of the connecting frame (7) are slidably mounted through, a plurality of contact holes (16) are embedded and opened at equal intervals on the outside of the limit rod (15), a fixed block (17) is fixed on the top side of the connecting frame (7) close to the top of one of the contact holes (16), a contact column (18) is slidably mounted in the inside of the fixed block (17), one end of the contact column (18) is abutted against the inside of one of the contact holes (16), a compression spring (19) is sleeved on the outside of one side of the contact column (18), and two ends of the compression spring (19) are respectively mounted on the outside of one side of the fixed block (17) and the contact column (18).

5. The investment casting device according to claim 1, characterized in that: The moving assembly comprises a bidirectional threaded rod (20) and a stepper motor (21); the bidirectional threaded rod (20) is installed on the outside of one side of the collection box (4) by means of a bracket for transverse rotation; the stepper motor (21) is fixedly installed on the outside of one side of the collection box (4); the output end of the stepper motor (21) is coaxially fixed with one end of the bidirectional threaded rod (20); a limiting block (22) is fixedly provided on one side of the two limiting covers (6) close to the bidirectional threaded rod (20); one side of the limiting block (22) is threadedly installed on the outside of one side of the bidirectional threaded rod (20).

6. The investment casting device according to claim 1, characterized in that: The shaking assembly comprises a driving motor (3) and a connecting column (27); the driving motor (3) is fixedly mounted on the outside of the top end of the base (1) between the two support frames (2); one side of the bottom end of the connecting column (27) is fixedly mounted on the top end of the output shaft of the driving motor (3); and the connecting column (27) is arranged in an inverted and tilted 7-shaped shape.

7. The investment casting device according to claim 6, characterized in that: The top end of the connecting column (27) is fixedly mounted at the middle position of the bottom end of the collecting box (4); the two supporting frames (2) are both rotatably engaged with auxiliary blocks (25) on one side of the top end close to the connecting column (27); connecting blocks (26) are fixedly connected between the two side edges of the two auxiliary blocks (25); a rotating column (28) is fixedly mounted on one side of the connecting column (27) close to the connecting block (26); one end of the rotating column (28) passes through and is rotatably engaged with the inside of one side of the connecting block (26).

8. The investment casting device according to claim 5, characterized in that: The filtering and clearing assembly comprises a filter plate (23) and two movable frames (30), wherein the filter plate (23) is fixedly mounted inside one side of the collecting box (4), and the two movable frames (30) are symmetrically slidably engaged and mounted inside one side of the collecting box (4) close to the bottom end of the filter plate (23). A plurality of filter holes (29) are uniformly spaced through the inside of the filter plate (23), one end of the two movable frames (30) is fixedly mounted to one end of a stop block (22) on the corresponding side, a plurality of installation cavities (31) are uniformly spaced inside the two movable frames (30), and through holes (32) are penetrated through the top ends of the two movable frames (30) located at the plurality of installation cavities (31).

9. The investment casting device according to claim 8, characterized in that: A ejector pin (33) is longitudinally slidably mounted inside the through hole (32); a stopper (34) is fixedly mounted on one end of the ejector pin (33) located inside the mounting cavity (31); a pressing spring (35) is connected and fixed between the bottom end of the stopper (34) and the inner wall of the bottom end of the mounting cavity (31); and the top end of the ejector pin (33) is inserted into the corresponding filter hole (29) in abutment with the top end.

10. A method for using an investment casting device, according to any one of claims 1 to 9, characterized in that: The steps include: S1: firstly, the prepared special-shaped mold is placed between two limiting covers (6), and then the temperature control heater (24), the moving component and the separation component are operated to divide and isolate different parts of the special-shaped mold into heating areas, so that the temperature of different parts of the shell can be accurately controlled, so that the wax mold is melted and flows out to form a cavity; S2: When the mold is being melted, the shaking component can be controlled to operate. By shaking the whole component, the wax liquid can flow out more easily from the complex parts inside the special-shaped mold under the action of gravity and inertia; S3: When the shaking component is shaken, it drives the filter plate (23) to shake synchronously, so that the wax liquid flowing out can be dispersed to different positions on the filter plate (23) for rapid filtration; S4: When dewaxing is completed, the moving assembly is restarted to drive the limit covers (6) on both sides to expand and move, so as to facilitate the removal of the dewaxing casting. At the same time, the moving assembly will drive the moving frame (30) to move synchronously, so as to drive the top multiple ejectors (33) to continuously impact the inside of the filter hole (29) to perform a clearing operation.

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