A kind of cooling equipment for lost wax casting workpiece

Abstract

The invention discloses a lost wax casting workpiece cooling and temperature reduction device, and relates to the technical field of casting cooling. In order to solve the problem of low cooling efficiency of the existing cooling, a hydraulic mechanism is used to move up and drive a mounting plate to move up and finally carry a support plate, and then drive the support plate to move down so that the support plate enters a support step for cooling. After cooling for a certain period of time, the hydraulic mechanism drives the mounting plate to move up and down again so that a push column is inserted from a guide hole so that the push column touches the workpiece to make the workpiece move, thereby reducing the contact surface between the workpiece and the workpiece or between the workpiece and the support plate, increasing the contact surface between the cooling medium and the workpiece, improving the cooling uniformity, and improving the working efficiency. Moreover, the piston plate will push the cooling medium in the cooling bin to have a tendency to flow up and down, so that the cooling medium has a partial reverse flow, so that the part of the workpiece facing away from the flow direction of the cooling medium is easy to contact with the colder cooling medium, so as to improve the cooling effect of the workpiece.

Description

Technical Field

[0001] The invention relates to the technical field of casting cooling, and in particular to a lost wax casting workpiece cooling device. Background Art

[0002] Lost wax casting is a precision casting process. Lost wax castings are metal products made through this process. Lost wax casting begins with making a wax mold, which is made of wax to form a model that is exactly the same as the shape of the desired casting. The wax mold is then wrapped in a refractory material, and after drying and hardening, the wax mold is melted and flows out, leaving a cavity. Next, liquid metal is poured into the cavity.

[0003] A lost wax casting workpiece cooling and cooling device disclosed in announcement number CN221754704U includes a main body mechanism and a support mechanism, the support mechanism is located above the main body mechanism, the main body mechanism includes a device body, a heat-conducting metal mesh plate and a cooling box, the heat-conducting metal mesh plate is movably installed inside the device body, the cooling box is fixedly installed at the right end of the device body, and the main body mechanism also includes a semiconductor refrigeration plate. The lost wax casting workpiece cooling and cooling device, by installing the main body mechanism, realizes that when the device body performs the cooling and cooling operation of the lost wax casting workpiece, the circulating pump can drive the cooling medium inside the cooling box to circulate inside the circulating cooling pipe, and perform heat exchange with the lost wax casting workpiece above the heat-conducting metal mesh plate, so as to achieve uniform cooling of the lost wax casting workpiece, accelerate the cooling of the lost wax casting workpiece, and improve the cooling effect and cooling efficiency of the device body on the lost wax casting workpiece.

[0004] However, in the above-mentioned cooling and cooling device, there is a problem that the lost wax casting workpieces are stacked on the heat-conducting metal mesh plate, the contact surfaces of the workpieces and the contact surfaces of the workpieces and the mesh plate are easy to fit each other, the heat conduction efficiency is low, and the cooling speed at the fitting point is slow, which affects the cooling and cooling efficiency.

[0005] Therefore, a lost wax casting workpiece cooling and temperature reduction equipment is needed. Summary of the invention

[0006] In order to solve all or part of the above problems, the present invention aims to provide a lost wax casting workpiece cooling device to solve the problem of low cooling efficiency in the prior art.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a lost wax casting workpiece cooling and temperature reduction device, comprising a supporting shell, a feeding mechanism is placed on one side of the lower end of the supporting shell, a feeding mechanism is placed on the other side of the lower end of the supporting shell, a conveying mechanism is installed on the inner side of the supporting shell, a plurality of groups of upper hook components are arranged on the upper end of the conveying mechanism, a lower hook component is hooked on the lower end of the upper hook component, a loading component is arranged on the lower end of the lower hook component, a lower hook component is fixedly arranged at each of the four corners of the loading component, a cooling platform is installed at the lower end of the middle part of the inner side of the supporting shell, and an auxiliary cooling mechanism is installed on the inner side of the cooling platform; The loading assembly includes a support plate and a block installed on the upper end of the support plate. There are multiple block blocks, and each block is in a conical shape with an upper end diameter smaller than a lower end diameter. The auxiliary cooling mechanism includes a piston plate and multiple hydraulic mechanisms installed at the lower end of the piston plate. A mounting plate is provided at the driving end of the hydraulic mechanism. Multiple push columns are installed at the upper end of the mounting plate. The push columns are also in a conical shape with an upper end diameter smaller than a lower end diameter. The push columns match the guide holes opened in the upper end of the support plate. The hydraulic mechanism drives the mounting plate to move up and down again so that the push columns are inserted from the guide holes, so that the push columns touch the workpiece to make the workpiece move, thereby reducing the contact surface between the workpieces or the workpiece and the support plate.

[0008] Furthermore, the conveying mechanism includes a servo motor and a driving roller 1 installed at the driving end of the servo motor. The servo motor is installed on the outside of the supporting shell and the driving end movably penetrates the side wall of the supporting shell. Both ends of the driving roller 1 are rotatably connected to the supporting shell and a conveying belt is provided on the outside. A driving roller 2 is provided at the end of the inner side of the conveying belt away from the driving roller 1, and both ends of the driving roller 2 are rotatably connected to the supporting shell.

[0009] Furthermore, the cooling platform includes a support platform and an input pipe installed on one side of the support platform, an output groove is provided at one end of the support platform away from the input pipe, a cooling bin is provided in the middle of the support platform, and support steps are provided on the support platform at both ends of the cooling bin.

[0010] Furthermore, the piston plate matches the lower end of the cooling chamber, a plurality of return springs are fixedly provided on the upper end of the piston plate, a mounting plate is fixedly provided on the upper end of the return spring, and the driving end of the hydraulic mechanism movably passes through the piston plate and is fixedly connected to the mounting plate.

[0011] Furthermore, a compression column is installed between the piston plate and the mounting plate, and the compression column movably penetrates the piston plate. A plurality of guide holes are provided at the bottom of the support platform, and the piston plate corresponds to the guide holes.

[0012] Furthermore, the guide hole is communicated with an output hole provided on the support platform, and the output hole is communicated with the cooling chamber.

[0013] Furthermore, the lower hook assembly includes a support block and rotating blocks installed on both sides of the upper end of the support block, the support block is fixedly connected to the support plate, and a lower hook is rotatably arranged on the inner side of the upper end of the rotating block.

[0014] Furthermore, the upper hook assembly includes a connecting frame and a connecting block fixedly installed on the upper end of the connecting frame, the connecting block is fixedly connected to the conveyor belt, and an upper hook is rotatably provided on the inner lower end of the connecting frame.

[0015] Furthermore, a torsion spring 1 is arranged on the inner side of the lower end of the rotating block, one end of which is fixedly connected to the supporting block, and a torsion spring 2 is fixedly arranged on the outer side of one end of the upper hook, one end of which is fixedly connected to the connecting frame.

[0016] Furthermore, arc grooves are provided on both sides of the connection block, and the lower hook matches the arc grooves.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The present invention proposes a lost wax casting workpiece cooling and temperature reduction equipment. The hydraulic mechanism moves up to drive the mounting plate to move up and finally carries the support plate, and then drives the support plate to move down so that the support plate enters the support step for cooling. After cooling for a certain period of time, the hydraulic mechanism drives the mounting plate to move up and down again so that the pushing column is inserted from the guide hole, so that the pushing column touches the workpiece to make the workpiece move, thereby reducing the contact surface between the workpiece and the workpiece or the workpiece and the support plate, increasing the contact surface between the cooling medium and the workpiece, improving the cooling uniformity, and improving the work efficiency. In addition, the piston plate will push the cooling medium in the cooling bin to have a tendency to flow up and down, so that the cooling medium has a partial reverse flow, thereby making the part of the workpiece facing away from the flow direction of the cooling medium easy to contact with the colder cooling medium, thereby improving the cooling effect of the workpiece.

[0018] The present invention proposes a lost wax casting workpiece cooling and temperature reduction device. After the workpieces are randomly placed on a support plate, the adjacent workpieces can be spaced apart under the limiting effect of the conical block to reduce the fit between the workpieces, and the workpieces can be partially lifted up by the adjacent block to reduce the fit between the workpiece and the support plate, thereby facilitating rapid heat dissipation during cooling and improving the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the lost wax casting workpiece cooling and temperature reduction equipment of the present invention; Figure 2 It is a schematic diagram of the overall cutaway side plan view of the cooling and temperature reduction device for lost wax casting workpieces of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the conveying mechanism of the lost wax casting workpiece cooling and temperature reduction equipment of the present invention; Figure 4It is a schematic diagram of the cutaway three-dimensional structure of the cooling platform and auxiliary cooling mechanism of the lost wax casting workpiece cooling and temperature reduction equipment of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the material loading assembly of the lost wax casting workpiece cooling and temperature reduction equipment of the present invention; Figure 6 It is a structural schematic diagram of the connection state of the lower hook component and the upper hook component of the lost wax casting workpiece cooling and temperature reduction equipment of the present invention; Figure 7 It is a schematic diagram of the disassembled three-dimensional structure of the lower hook assembly of the lost wax casting workpiece cooling device of the present invention; Figure 8 It is a schematic diagram of the disassembled three-dimensional structure of the upper hook component of the lost wax casting workpiece cooling and temperature reduction equipment of the present invention.

[0020] In the figure: 1. Support shell; 2. Feeding mechanism; 3. Conveying mechanism; 31. Servo motor; 32. Driving roller one; 33. Conveying belt; 34. Driving roller two; 4. Loading assembly; 41. Support plate; 42. Block; 43. Guide hole; 5. Lower hook assembly; 51. Support block; 52. Rotating block; 53. Torsion spring one; 54. Lower hook; 6. Upper hook assembly; 61. Connecting frame; 62. Upper hook; 63. Torsion spring two; 64. Connecting block; 641. Arc groove; 7. Cooling table; 71. Support table; 72. Input pipe; 711. Cooling bin; 712. Output groove; 713. Support step; 714. Guide hole; 715. Output hole; 8. Auxiliary cooling mechanism; 81. Piston plate; 82. Hydraulic mechanism; 83. Reset spring; 84. Mounting plate; 85. Push column; 86. Compression column; 9. Feeding mechanism. DETAILED DESCRIPTION

[0021] 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.

[0022] like Figure 1-Figure 2As shown, a lost wax casting workpiece cooling and temperature reduction device comprises a support shell 1, the support shell 1 is T-shaped with a long upper end and a narrow lower end, and support columns are fixedly installed on the lower sides of both ends of the upper end of the support shell 1, and the lower ends of the support columns can be provided with self-locking universal wheels for easy movement. A loading mechanism 2 is placed on one side of the lower end of the support shell 1, and a unloading mechanism 9 is placed on the other side of the lower end of the support shell 1. The overall height of the loading mechanism 2 and the unloading mechanism 9 is 1.1-1.4 meters, which is convenient for manual loading and unloading. The loading mechanism 2 and the unloading mechanism 9 are both controlled by hydraulic cylinders. It is composed of a support plate, and a through hole is opened at a position corresponding to the loading mechanism 2 or the unloading mechanism 9 on the support shell 1, for the loading mechanism 2 or the unloading mechanism 9 to penetrate into the inner side of the support shell 1, and a conveying mechanism 3 is installed on the inner side of the support shell 1, and a plurality of groups of upper hook components 6 are arranged at the upper end of the conveying mechanism 3, and a lower hook component 5 is hooked at the lower end of the upper hook component 6, and a loading component 4 is arranged at the lower end of the lower hook component 5, and a lower hook component 5 is fixedly arranged at each of the four corners of the loading component 4, and a cooling table 7 is installed at the lower end of the middle part of the inner side of the support shell 1, and an auxiliary cooling mechanism 8 is installed on the inner side of the cooling table 7.

[0023] like Figure 1-Figure 3 As shown, the conveying mechanism 3 includes a servo motor 31 and a driving roller 32 installed at the driving end of the servo motor 31. The servo motor 31 is installed on the outer side of the supporting shell 1 and the driving end movably penetrates the side wall of the supporting shell 1. Both ends of the driving roller 32 are rotatably connected to the supporting shell 1 and a conveying belt 33 is sleeved on the outer side. A driving roller 2 34 is provided on the inner end of the conveying belt 33 away from the driving roller 1 32. Both ends of the driving roller 2 34 are rotatably connected to the supporting shell 1. The servo motor 31 drives the driving roller 32 to rotate, thereby causing the conveying belt 33 to rotate, thereby rotating and conveying the upper hook component 6.

[0024] like Figure 2 and Figure 5 As shown, the loading assembly 4 includes a support plate 41 and a stopper 42 installed on the upper end of the support plate 41. There are multiple stoppers 42, and each of them is in a conical shape with an upper diameter smaller than a lower diameter. After the workpieces are randomly placed on the support plate 41, the conical stoppers 42 can limit the adjacent workpieces and reduce the fit between the workpieces. In addition, the workpieces can be partially lifted up by adjacent stoppers 42 to reduce the fit between the workpieces and the support plate 41, thereby facilitating rapid heat dissipation during cooling and improving the heat dissipation effect.

[0025] like Figure 2 and Figure 4As shown, the cooling platform 7 includes a support platform 71 and an input pipe 72 installed on one side of the support platform 71, the input pipe 72 penetrates the support shell 1 and is connected to the output end of the external cooling medium conveying equipment, an output groove 712 is provided at one end of the support platform 71 away from the input pipe 72, the output groove 712 is connected to the through groove provided on one side of the support shell 1 and the through groove is connected to the input end of the external cooling medium recovery equipment, a cooling bin 711 is provided in the middle of the support platform 71, and support steps 713 are provided on the support platform 71 at both ends of the cooling bin 711, the auxiliary cooling mechanism 8 drives the loading assembly 4 of the workpiece to be conveyed into the cooling bin 711 and is supported by the support steps 713, at this time, the cooling medium flows in the cooling bin 711 to cool the workpiece and flows out from the output groove 712 to be recovered, and at the same time, the input pipe 72 continuously conveys the cooling medium, thereby realizing efficient cooling of the workpiece and improving the cooling efficiency.

[0026] like Figure 2 and Figure 4 As shown, the auxiliary cooling mechanism 8 includes a piston plate 81 and a plurality of hydraulic mechanisms 82 installed at the lower end of the piston plate 81. The piston plate 81 matches the lower end of the cooling chamber 711. A plurality of return springs 83 are fixedly provided at the upper end of the piston plate 81. A mounting plate 84 is fixedly provided at the upper end of the return spring 83. The driving end of the hydraulic mechanism 82 movably penetrates the piston plate 81 and is fixedly connected to the mounting plate 84. A plurality of push columns 85 are installed at the upper end of the mounting plate 84. The push columns 85 are also in a conical shape with an upper end diameter smaller than a lower end diameter. The push columns 85 match the guide holes 43 opened at the upper end of the support plate 41. The hydraulic mechanism 82 moves upward to drive the mounting plate 84 to move upward and finally bear the support plate 41, and then drives the support plate 41 to move upward. The support plate 41 moves downward so that the support plate 41 enters the support step 713 for cooling. After cooling for a certain period of time, the hydraulic mechanism 82 drives the mounting plate 84 to move up and down again so that the push column 85 is inserted from the guide hole 43, so that the push column 85 touches the workpiece to make the workpiece move, thereby reducing the contact surface between the workpiece and the workpiece or the workpiece and the support plate 41, increasing the contact surface between the cooling medium and the workpiece, improving the cooling uniformity, and improving the work efficiency. In addition, the piston plate 81 will push the cooling medium in the cooling chamber 711 to have a tendency to flow up and down, so that the cooling medium has a partial reverse flow, thereby making it easy for the part of the workpiece that is opposite to the flow direction of the cooling medium to contact with the colder cooling medium, thereby improving the cooling effect of the workpiece.

[0027] like Figure 2 and Figure 4As shown, a compression column 86 is installed between the piston plate 81 and the mounting plate 84, and the compression column 86 movably penetrates the piston plate 81. A plurality of guide holes 714 are provided at the bottom of the support platform 71, and the piston plate 81 corresponds to the guide holes 714. The guide holes 714 are connected to the output holes 715 provided on the support platform 71, and the output holes 715 are connected to the cooling bin 711. When the mounting plate 84 moves upward, the cooling medium in the cooling bin 711 enters the lower end of the piston plate 81 from the output hole 715 through the guide holes 714. When the mounting plate 84 moves downward, the cooling medium at the lower end of the piston plate 81 passes through the guide holes 714 and is ejected from the output hole 715. As the mounting plate 84 continues to move, the compression column 86 is inserted into the guide holes 714 and squeezes the cooling medium therein, so that the cooling medium is ejected from the output hole 715 and the cooling medium in the cooling bin 711 is stirred, so that the cooling of the workpiece is more uniform and rapid.

[0028] like Figure 6-Figure 8 As shown, the lower hook assembly 5 includes a support block 51 and a rotating block 52 installed on both sides of the upper end of the support block 51, the support block 51 is fixedly connected to the support plate 41, a torsion spring 53 is arranged on the inner side of the lower end of the rotating block 52, one end of the torsion spring 53 is fixedly connected to the support block 51, and a lower hook 54 is rotatably arranged on the inner side of the upper end of the rotating block 52.

[0029] like Figure 6-Figure 8 As shown, the upper hook assembly 6 includes a connecting frame 61 and a connecting block 64 fixedly installed on the upper end of the connecting frame 61, the connecting block 64 is fixedly connected to the conveyor belt 33, an upper hook 62 is rotatably provided at the inner lower end of the connecting frame 61, a torsion spring 63 is fixedly provided on the outer side of one end of the upper hook 62, one end of the torsion spring 63 is fixedly connected to the connecting frame 61, arc grooves 641 are opened on both sides of the connecting block 64, and the lower hook 54 matches the arc grooves 641.

[0030] Specifically, when starting work, the operator places the support plate 41 on the feeding mechanism 2, and then places the workpiece to be cooled on the support plate 41, starts the feeding mechanism 2 to move up and drives the lower hook 54 to move up, and the lower hook 54 moves up to push the upper hook 62 to rotate until the lower hook 54 passes over the upper hook 62, and the upper hook 62 is reset under the action of the torsion spring 63, completing the connection between the upper hook 62 and the lower hook 54. When the feeding mechanism 2 moves down, the support plate 41 is hooked on the conveyor belt 33 by the upper hook assembly 6, and then the servo motor 31 drives the conveyor belt 33 to move, so that the support plate 41 corresponds to the upper end of the cooling bin 711. At this time, the hydraulic mechanism 82 is started to drive the mounting plate 84 to move up and receive the support plate 41, and then continue to move up. At this time, the lower hook 54 will enter the arc groove 64 1, and under the restriction of the arc-shaped arc groove 641 and the rotation of the rotating block 52, it is rotated out from one side of the upper hook component 6 and then separated from the upper hook component 6, so that the support plate 41 can be automatically removed, and then transported downward for cooling. After cooling, the hydraulic mechanism 82 is continued to be driven to connect the lower hook 54 on the support plate 41 with the upper hook 62, and then the servo motor 31 is driven again to drive the conveyor belt 33 to move. At this time, the conveyor belt 33 conveys the cooled ones to the corresponding position of the unloading mechanism 9, and the ones that have not been cooled are transmitted to the corresponding position of the upper end of the cooling bin 711. After pausing, the unloading mechanism 9 moves up to remove the support plate 41. The entire loading-cooling unloading-cooling loading-unloading is fully automated, which reduces manual operation and improves cooling efficiency.

[0031] It should be noted that, in the description of the present application, it should be understood that the terms "length", "thickness", "inside", "outside", "axial", "radial", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] In addition, relational terms such as first and second, etc., are used only 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", "comprises", or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or apparatus that includes 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 apparatus.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lost wax casting workpiece cooling device, characterized in that: It comprises a supporting shell (1), a loading mechanism (2) is placed on one side of the lower end of the supporting shell (1), a unloading mechanism (9) is placed on the other side of the lower end of the supporting shell (1), a conveying mechanism (3) is installed on the inner side of the supporting shell (1), a plurality of groups of upper hook components (6) are arranged at the upper end of the conveying mechanism (3), a lower hook component (5) is hooked at the lower end of the upper hook component (6), a loading component (4) is arranged at the lower end of the lower hook component (5), a lower hook component (5) is fixedly arranged at each of the four corners of the loading component (4), a cooling platform (7) is installed at the lower end of the middle part of the inner side of the supporting shell (1), and an auxiliary cooling mechanism (8) is installed on the inner side of the cooling platform (7); The material loading assembly (4) comprises a support plate (41) and a stopper (42) mounted on the upper end of the support plate (41). A plurality of stoppers (42) are provided, and each of the stoppers (42) is in a conical shape with an upper end diameter smaller than a lower end diameter. The cooling platform (7) comprises a support platform (71) and an input pipe (72) installed on one side of the support platform (71); an output groove (712) is provided at one end of the support platform (71) away from the input pipe (72); a cooling bin (711) is provided in the middle of the support platform (71); and support steps (713) are provided on the support platform (71) at both ends of the cooling bin (711); The auxiliary cooling mechanism (8) comprises a piston plate (81) and a plurality of hydraulic mechanisms (82) mounted at the lower end of the piston plate (81); a mounting plate (84) is provided at the driving end of the hydraulic mechanism (82); a plurality of push columns (85) are mounted at the upper end of the mounting plate (84); the push columns (85) are also in a conical shape with an upper end diameter smaller than a lower end diameter; the push columns (85) match the guide holes (43) opened at the upper end of the support plate (41).

2. A lost wax casting workpiece cooling device as claimed in claim 1, characterized in that: The conveying mechanism (3) comprises a servo motor (31) and a driving roller (32) mounted on the driving end of the servo motor (31); the servo motor (31) is mounted on the outside of the supporting shell (1) and the driving end movably penetrates the side wall of the supporting shell (1); both ends of the driving roller (32) are rotatably connected to the supporting shell (1) and a conveying belt (33) is sleeved on the outside; a driving roller (34) is arranged on the inside of the conveying belt (33) at one end away from the driving roller (32); and both ends of the driving roller (34) are rotatably connected to the supporting shell (1).

3. A lost wax casting workpiece cooling device as claimed in claim 1, characterized in that: The piston plate (81) matches the lower end of the cooling chamber (711); a plurality of return springs (83) are fixedly disposed on the upper end of the piston plate (81); a mounting plate (84) is fixedly disposed on the upper end of the return spring (83); and a driving end of the hydraulic mechanism (82) movably passes through the piston plate (81) and is fixedly connected to the mounting plate (84).

4. A lost wax casting workpiece cooling device as claimed in claim 3, characterized in that: A compression column (86) is installed between the piston plate (81) and the mounting plate (84), and the compression column (86) movably penetrates the piston plate (81). A plurality of groups of guide holes (714) are provided at the bottom of the support platform (71), and the piston plate (81) corresponds to the guide holes (714).

5. A lost wax casting workpiece cooling device as claimed in claim 4, characterized in that: The guide hole (714) is in communication with an output hole (715) provided on the support platform (71), and the output hole (715) is in communication with the cooling chamber (711).

6. A lost wax casting workpiece cooling device as claimed in claim 1, characterized in that: The lower hook assembly (5) comprises a support block (51) and rotating blocks (52) mounted on both sides of the upper end of the support block (51); the support block (51) is fixedly connected to the support plate (41); and a lower hook (54) is rotatably provided on the inner side of the upper end of the rotating block (52).

7. A lost wax casting workpiece cooling device as claimed in claim 6, characterized in that: The upper hook assembly (6) comprises a connecting frame (61) and a connecting block (64) fixedly mounted on the upper end of the connecting frame (61); the connecting block (64) is fixedly connected to the conveying belt (33); and an upper hook (62) is rotatably provided at the inner lower end of the connecting frame (61).

8. A lost wax casting workpiece cooling device as claimed in claim 7, characterized in that: A torsion spring 1 (53) is disposed on the inner side of the lower end of the rotating block (52), one end of the torsion spring 1 (53) is fixedly connected to the supporting block (51), and a torsion spring 2 (63) is fixedly disposed on the outer side of one end of the upper hook (62), one end of the torsion spring 2 (63) is fixedly connected to the connecting frame (61).

9. A lost wax casting workpiece cooling device as claimed in claim 8, characterized in that: Arc-shaped grooves (641) are formed on both sides of the connection block (64), and the lower hook (54) matches the arc-shaped grooves (641).

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