Quick drying device for investment casting shell

Abstract

The utility model discloses an investment casting shell quick drying device which comprises a drying box, a supporting cylinder is fixedly welded to the upper end in the drying box, a threaded rod is connected to the interior of the supporting cylinder through threads, according to the investment casting shell quick drying device, a shell is hung on a hook, and the threaded rod and a small ball are driven to rotate by rotating a nut; the lifting plate and the pressing plate can be driven to move longitudinally, the pressing plate can be tightly attached to the upper end of the mold shell so as to stabilize the mold shell and prevent shaking from affecting the cooling effect, the pressing plate can be buffered through the spring, the pressing plate is tightly attached to the mold shell in a buffering mode, and pressing loss is prevented; cold air is generated through the cooling fan and exhausted from the air outlet pipe through the connecting pipe and the annular pipe, cooling and drying treatment on the mold shell is facilitated, the design of the annular pipe and the air outlet pipe can enlarge the cooling and drying position of the cold air, and therefore the mold shell can be evenly cooled and dried, and the design of the fixing blocks can reinforce and support the connecting pipe and the annular pipe. And shaking caused by wind power is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of shell cooling devices, in particular to a rapid drying device for investment casting shells. Background Technique

[0002] When manufacturing a casting, first inject wax into the mold to achieve "waxing", then take out the wax mold after the wax cools, completing "demolding". At this time, the wax mold is the same size as the actual object. Then coat and compact the surface of the wax mold with sand to a certain thickness. After the casting sand on the surface of the wax mold adheres, put the wax mold covered with sand into water and boil it to melt the wax, finally leaving a sand shell. Finally, bury the sand shell in the casting sand pit and pour molten iron along the sand shell. Finally, when the molten iron left in the sand shell cools, the manufacturing of the casting is completed.

[0003] For example, a rapid drying device for investment casting shells disclosed in the authorized announcement number CN208976776U, which relates to the technical field of shell cooling, includes an air cooling unit. The air cooling unit includes a fan and a conveying air duct. The fan is arranged at one end of the conveying air duct. A cooling pipe is sleeved outside the conveying air duct. There is a gap between the cooling pipe and the conveying air duct. The cooling pipe is provided with a liquid inlet and a liquid outlet. The liquid inlet is communicated with a coolant inlet pipe, and the liquid outlet is communicated with a coolant outlet pipe. However, such a rapid drying device for investment casting shells is not convenient for stabilizing the shell for cooling and is not convenient for uniformly cooling the shell.

[0004] As can be seen from the solutions disclosed in the above-mentioned existing patent documents, it is not convenient to stabilize the shell for cooling and is not convenient for uniformly cooling the shell. Therefore, the prior art needs to be improved. Content of the Utility Model

[0005] The purpose of the utility model is to provide a rapid drying device for investment casting shells to solve the problems of inconveniently stabilizing the shell for cooling and inconveniently uniformly cooling the shell.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A rapid drying device for investment casting shells includes a drying box. A support cylinder is fixedly welded to the upper end inside the drying box. A threaded rod is connected inside the support cylinder by threads. A nut is fixedly welded to the outside of the threaded rod. The lower end of the threaded rod is fixedly connected to a small ball. A lifting plate is slidably sleeved outside the small ball. A spring is fixedly connected to the lower end surface of the lifting plate. The lower end of the spring is fixedly connected to a pressing plate. A driving machine is installed inside the drying box. The lower end of the rotating shaft of the driving machine is fixedly connected to a hook. A box door is installed on the surface of the drying box. Cooling fans are installed on both sides of the drying box. One end of the cooling fan is fixedly connected to a connecting pipe. A circular pipe is fixedly connected to one side of the connecting pipe. An air outlet pipe is installed inside the circular pipe.

[0007] Preferably, a threaded hole is provided inside the support cylinder. The lower end of the threaded rod is slidably connected to a lifting plate. The mold shell is hung on the hook. By rotating the nut to drive the threaded rod and the small ball to rotate, the lifting plate and the pressing plate can be driven to move longitudinally.

[0008] Preferably, a hook is sleeved inside the lifting plate, and a hook is sleeved inside the pressing plate. The design of the pressing plate can closely adhere to the upper end of the mold shell, thereby stabilizing the mold shell and preventing shaking from affecting the cooling effect.

[0009] Preferably, the lifting plate is designed with a hollow structure, and the pressing plate is designed with a hollow structure. The design of the spring can buffer the pressing plate, so that the pressing plate buffers and closely adheres to the mold shell to prevent damage.

[0010] Preferably, a connecting pipe is sleeved inside the drying box, and a hook is sleeved inside the annular pipe. Cold air is generated by the cooling fan and discharged from the air outlet pipe through the connecting pipe and the annular pipe, which is convenient for cooling and drying the mold shell.

[0011] Preferably, an annular pipe is sleeved inside the drying box, and the air outlet pipe is aligned with the mold shell hung on the hook. The design of the annular pipe and the air outlet pipe can increase the position of cold air cooling and drying, so as to uniformly cool and dry the mold shell.

[0012] Preferably, fixing blocks are fixedly welded to the inner wall of the drying box, and a fixing block is fixedly welded to one side of the connecting pipe. The design of the fixing block can strengthen the support for the connecting pipe and the annular pipe to prevent shaking under the influence of wind force.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. In the present utility model, the mold shell is hung on the hook. By rotating the nut to drive the threaded rod and the small ball to rotate, the lifting plate and the pressing plate can be driven to move longitudinally. The design of the pressing plate can closely adhere to the upper end of the mold shell, thereby stabilizing the mold shell and preventing shaking from affecting the cooling effect. The design of the spring can buffer the pressing plate, so that the pressing plate buffers and closely adheres to the mold shell to prevent damage.

[0015] 2. In the present utility model, cold air is generated by the cooling fan and discharged from the air outlet pipe through the connecting pipe and the annular pipe, which is convenient for cooling and drying the mold shell. The design of the annular pipe and the air outlet pipe can increase the position of cold air cooling and drying, so as to uniformly cool and dry the mold shell. The design of the fixing block can strengthen the support for the connecting pipe and the annular pipe to prevent shaking under the influence of wind force. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2This is a cross-sectional view of the drying box of the present utility model;

[0018] Figure 3 This is an enlarged view of the support cylinder of the present utility model;

[0019] Figure 4 This is a top view of the annular pipe of the present utility model.

[0020] In the figure: 1 drying box, 11 support cylinder, 12 threaded rod, 13 nut, 14 small ball, 15 lifting plate, 16 spring, 17 pressing plate, 18 driving machine, 19 hook, 110 door of the box, 2 cooling fan, 21 connecting pipe, 22 annular pipe, 23 air outlet pipe, 24 fixing block. Specific implementation manner

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-4 , a rapid drying device for investment casting shells shown in the figure, including a drying box 1, a support cylinder 11 is fixedly welded to the upper end inside the drying box 1, a threaded rod 12 is connected inside the support cylinder 11 by threads, a nut 13 is fixedly welded to the outside of the threaded rod 12, a small ball 14 is fixedly connected to the lower end of the threaded rod 12, a lifting plate 15 is slidably sleeved on the outside of the small ball 14, a spring 16 is fixedly connected to the lower end surface of the lifting plate 15, a pressing plate 17 is fixedly connected to the lower end of the spring 16, a driving machine 18 is installed inside the drying box 1, the driving machine 18 belongs to the prior art, a hook 19 is fixedly connected to the lower end of the rotating shaft of the driving machine 18, a door 110 of the box is installed on the surface of the drying box 1, cooling fans 2 are installed on both sides of the drying box 1, the cooling fans 2 belong to the prior art, a connecting pipe 21 is fixedly connected to one end of the cooling fan 2, an annular pipe 22 is fixedly connected to one side of the connecting pipe 21, and an air outlet pipe 23 is installed inside the annular pipe 22.

[0023] To prevent the shaking of the die shell from affecting the cooling effect, a threaded hole is provided inside the support cylinder 11. The lower end of the threaded rod 12 is slidably connected to the lifting plate 15. The die shell is suspended on the hook 19. By rotating the nut 13 to drive the threaded rod 12 and the ball 14 to rotate, the lifting plate 15 and the pressing plate 17 can be driven to move longitudinally. The hook 19 is sleeved inside the lifting plate 15, and the hook 19 is sleeved inside the pressing plate 17. The design of the pressing plate 17 can be closely attached to the upper end of the die shell, so as to stabilize the die shell and prevent shaking from affecting the cooling effect. The inside of the lifting plate 15 is designed with a hollow structure, and the inside of the pressing plate 17 is designed with a hollow structure. The design of the spring 16 can buffer the pressing plate 17, so that the pressing plate 17 buffers and closely adheres to the die shell to prevent damage due to pressing.

[0024] To uniformly cool and dry the die shell, the connecting pipe 21 is sleeved inside the drying box 1. The hook 19 is sleeved inside the annular pipe 22. The cooling fan 2 generates cold air, which passes through the connecting pipe 21 and the annular pipe 22 and is discharged from the air outlet pipe 23, facilitating the cooling and drying treatment of the die shell. The annular pipe 22 is sleeved inside the drying box 1, and the air outlet pipe 23 is aligned with the die shell hung on the hook 19. The design of the annular pipe 22 and the air outlet pipe 23 can increase the cold air cooling and drying position, so as to uniformly cool and dry the die shell. The fixing block 24 is fixedly welded to the inner wall of the drying box 1, and the fixing block 24 is fixedly welded to one side of the connecting pipe 21. The design of the fixing block 24 can strengthen the support of the connecting pipe 21 and the annular pipe 22 to prevent shaking affected by the wind force.

[0025] For this rapid drying device for investment casting die shell, the die shell is suspended on the hook 19. By rotating the nut 13 to drive the threaded rod 12 and the ball 14 to rotate, the lifting plate 15 and the pressing plate 17 can be driven to move longitudinally. The design of the pressing plate 17 can be closely attached to the upper end of the die shell, so as to stabilize the die shell and prevent shaking from affecting the cooling effect. The design of the spring 16 can buffer the pressing plate 17, so that the pressing plate 17 buffers and closely adheres to the die shell to prevent damage due to pressing; the cooling fan 2 generates cold air, which passes through the connecting pipe 21 and the annular pipe 22 and is discharged from the air outlet pipe 23, facilitating the cooling and drying treatment of the die shell. The design of the annular pipe 22 and the air outlet pipe 23 can increase the cold air cooling and drying position, so as to uniformly cool and dry the die shell. The design of the fixing block 24 can strengthen the support of the connecting pipe 21 and the annular pipe 22 to prevent shaking affected by the wind force.

[0026] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rapid drying device for investment casting shells, comprising a drying box (1), characterized in that: At the upper end inside the drying box (1), a support cylinder (11) is fixedly welded. Inside the support cylinder (11), a threaded rod (12) is connected by threads. A nut (13) is fixedly welded on the outer side of the threaded rod (12). The lower end of the threaded rod (12) is fixedly connected to a small ball (14). The outer side of the small ball (14) is slidably sleeved with a lifting plate (15). The lower end surface of the lifting plate (15) is fixedly connected to a spring (16). The lower end of the spring (16) is fixedly connected to a pressing plate (17). A driving machine (18) is installed inside the drying box (1). The lower end of the rotating shaft of the driving machine (18) is fixedly connected to a hook (19). A box door (110) is installed on the surface of the drying box (1). Cooling fans (2) are installed on both sides of the drying box (1). One end of the cooling fan (2) is fixedly connected to a connecting pipe (21). A ring-shaped pipe (22) is fixedly connected to one side of the connecting pipe (21). An air outlet pipe (23) is installed inside the ring-shaped pipe (22).

2. The rapid drying device for investment casting mold shells according to claim 1, wherein: A threaded hole is provided inside the support cylinder (11). The lower end of the threaded rod (12) is slidably connected to the lifting plate (15).

3. A rapid drying device for investment casting shells according to claim 1, characterized in that: The hook (19) is sleeved inside the lifting plate (15), and the hook (19) is sleeved inside the pressing plate (17).

4. A rapid drying device for investment casting shells according to claim 1, characterized in that: The inside of the lifting plate (15) is designed with a hollow structure, and the inside of the pressing plate (17) is designed with a hollow structure.

5. A rapid drying device for investment casting mold shells according to claim 1, characterized in that: The connecting pipe (21) is sleeved inside the drying box (1), and the hook (19) is sleeved inside the ring-shaped pipe (22).

6. The rapid drying device for investment casting mold shells according to claim 1, wherein: The ring-shaped pipe (22) is sleeved inside the drying box (1), and the air outlet pipe (23) is aligned with the mold shell hooked by the hook (19).

7. A rapid drying device for investment casting shells according to claim 1, characterized in that: Fixed blocks (24) are fixedly welded on the inner wall of the drying box (1), and a fixed block (24) is fixedly welded on one side of the connecting pipe (21).

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