Vacuum constant-temperature efficient energy-saving equipment for dehumidification of precision casting

Abstract

The invention relates to the technical field of precision casting, and discloses vacuum constant-temperature efficient energy-saving equipment for dehumidification of precision castings, which comprises a constant-temperature box, a constant-temperature machine and a vacuum machine are mounted on the outer wall of the constant-temperature box, a feeding hole is formed in one side of the constant-temperature box, and two observation windows matched with each other are mounted on one side of the constant-temperature box; the dehumidification mechanism is located at the top of the constant-temperature box and comprises a water absorption assembly, a drainage assembly and a limiting assembly, the water absorption assembly is located at the top of the interior of the constant-temperature box, the drainage assembly is located on one side of the water absorption assembly, and the limiting assembly is located on one side of the constant-temperature box; through the arrangement of the dehumidification mechanism, evaporated water vapor can be absorbed and discharged out of the constant-temperature box, the humidity in the constant-temperature box is reduced, the risk that a precision casting is corroded is reduced, and therefore the service life of equipment is prolonged, the interior of the constant-temperature box is kept dry, stable operation of an electrical system is guaranteed, and equipment faults are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of precision casting, and specifically to an efficient energy-saving device with vacuum and constant temperature for dehumidifying precision castings. Background Art

[0002] Precision casting is an advanced manufacturing process that can obtain castings with precise dimensions and excellent surface quality. It uses special molding materials and process methods, such as investment casting, ceramic mold casting, etc. Taking wax molds, ceramic molds, etc. as patterns, through multiple rigorous processes such as shell making, dewaxing, and roasting to make molds, and then pouring molten metal into the molds and cooling and solidifying to obtain castings.

[0003] Traditional processes can manufacture parts with complex shapes and high precision requirements, and are widely used in many fields such as aerospace, automotive, and machinery, which helps to improve product performance and quality. However, in order to shorten the shell making cycle, there have been many explorations in the industry. Through the research and development of materials, especially the use of quick-drying adhesives, some problems have been solved. However, the cost of quick-drying adhesives is too high, which is not conducive to large-scale promotion and use. At the same time, rapid drying also has an adverse impact on the environment. Therefore, the problem of rapid drying of the shell has always troubled precision casting workers. Summary of the Invention

[0004] The purpose of the present invention is to provide an efficient energy-saving device with vacuum and constant temperature for dehumidifying precision castings, which solves the problems that the cost of quick-drying adhesives in the background art is too high, not conducive to large-scale promotion and use, and at the same time, rapid drying also has an adverse impact on the environment.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: An efficient energy-saving device with vacuum and constant temperature for dehumidifying precision castings, comprising: A constant temperature box, on the outer wall of which a constant temperature machine and a vacuum machine are installed, and on one side of which a feeding port is installed. Two mutually cooperating observation windows are installed on one side of the constant temperature box, and a base is also fixed at the bottom of the constant temperature box to make the constant temperature box more stable during operation; A dehumidification mechanism, which is located on the top of the constant temperature box and is used for dehumidifying the castings to be dehumidified. The dehumidification mechanism includes a water absorption component, a drainage component, and a limiting component. The water absorption component is located at the top inside the constant temperature box and is used for absorbing the boiling water vapor inside the constant temperature box. The drainage component is located on one side of the water absorption component and is used for discharging the absorbed moisture. The limiting component is located on one side of the constant temperature box and is used for limiting the water absorption component.

[0006] Preferably, the water absorption component includes a condenser disposed at the top inside the thermostat and two positioning posts fixed to one side of the condenser. The two positioning posts are inserted into one side inside the thermostat. A control seat is fixed to one side of the condenser. Two control rods are fixed to one side of the control seat. A pull rod is fixed to the common side of the two control rods. The pull rod facilitates pulling the two control rods, enabling the control seat to move effectively when the limit is removed, thereby facilitating driving the condenser to move. By driving the movement of the condenser, it is convenient to disassemble it inside the thermostat, so as to replace and repair it, improving the stability of the device during operation.

[0007] Preferably, sliders are fixed to both sides of the control seat. A slot for inserting the control seat is formed on one side of the thermostat. Sliding grooves for the two sliders to slide are formed on both sides of the slot.

[0008] Preferably, the drainage component includes a water outlet pipe connected to one side of the condenser. The water outlet pipe extends to one side of the control seat and is connected to a drainage pipe. A guiding pipe is connected to the bottom of the drainage pipe. Reinforcing sleeves connected to the thermostat are provided on the outer walls of the water outlet pipe and the drainage pipe. A connecting component for connecting the two is provided between the water outlet pipe and the drainage pipe. Through the setting of the guiding pipe, the steam water can be effectively recovered when discharged and can also be discharged, improving the resource utilization rate of the device and avoiding resource loss.

[0009] Preferably, the connecting component includes a mounting seat fixed to one side of the water outlet pipe. A slot cavity for inserting the drainage pipe is formed on one side of the mounting seat. A plug board is inserted into one side of the slot cavity. The plug board corresponds to the drainage pipe. Through the setting of the mounting seat, the water outlet pipe and the drainage pipe can be separated. During the long-term operation of the condenser, scale, impurities and other pollutants will accumulate inside. The pollutants will affect the heat exchange efficiency of the condenser and reduce the dehumidification effect. When the water outlet pipe and the drainage pipe are separable, the condenser can be easily disassembled to thoroughly clean its interior. At the same time, when more efficient and energy-saving condenser products appear, the convenient disassembly design enables the original condenser to be easily replaced with a new model condenser, realizing the technical upgrade of the equipment, improving the performance and efficiency of the entire dehumidification system, and adapting to the changes in production processes and market demands.

[0010] Preferably, the limiting component includes a limiting seat fixed to one side of the thermostat. A fixing groove is formed inside the limiting seat. A baffle is arranged inside the fixing groove. The baffle abuts against the control seat. A control board is fixed to one side of the baffle. An opening groove for the control board to move is formed on one side of the limiting seat. A compression spring is connected between the baffle and the fixing groove. A plurality of rollers evenly distributed are arranged on the top of the limiting seat. All the rollers correspond to the control seat.

[0011] Preferably, the interior of the thermostatic box is provided with a rotating mechanism for supporting the castings that need to be dehumidified, the rotating mechanism includes a support frame arranged inside the thermostatic box, and two extended baffles are arranged on the top of the support frame, and air holes are provided inside the two extended baffles, and arc grooves are provided on opposite sides of the two extended baffles. Through the provision of the air holes, the vacuum machine can form convection inside and outside the extended baffles when extracting air, thereby effectively improving the dehumidification efficiency and enabling the castings to meet the dehumidification requirements more quickly and evenly.

[0012] Preferably, two groups of rotating rollers and limiting rollers are provided inside the support frame, and two driving motors are fixed on one side of the support frame, the output ends of the two driving motors are connected to the two rotating rollers, and limiting grooves are provided inside the two limiting rollers. The limiting grooves provide precise positioning for the casting, and can prevent the casting from lateral or longitudinal displacement during rotation, so that it always remains in the predetermined processing position, which is crucial for castings that require high-precision processing, and can ensure that each processing step can be accurately executed, thereby improving the dimensional accuracy and shape accuracy of the casting. At the same time, the limiting effect of the limiting groove on the casting can reduce its shaking and vibration during rotation. When the casting is rotating, if there is no effective limiting measure, jumping phenomenon may occur, that is, irregular movement of the casting in the radial direction, which not only affects the dehumidification effect of the casting but also easily causes damage to the casting.

[0013] Preferably, a discharge mechanism for pushing the castings that need to be dehumidified is provided on one side of the interior of the constant temperature box, and the discharge mechanism includes a movable plate arranged on one side of the interior of the constant temperature box, the movable plate cooperates with the support frame, and a storage groove is opened on one side of the bottom of the movable plate, a rotating shaft is installed inside the storage groove, a push plate is fixed on the outer wall of the rotating shaft, and the push plate corresponds to the storage groove, a support seat is fixed on one side of the constant temperature box, a cylinder is fixed on the top of the support seat, the output end of the cylinder extends to the interior of the constant temperature box and is fixed to the movable plate, and a driving component for driving the rotating shaft to rotate is provided between the movable plate and the rotating shaft.

[0014] Preferably, the driving assembly includes fixed teeth fixed to the outer wall of the rotating shaft, a servo motor is fixed inside the movable plate, an output end of the servo motor is connected to a driving gear, and the driving gear is meshed with the fixed teeth.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are: 1. Through the setting of the dehumidification mechanism, the present invention can absorb the evaporated water vapor and discharge it from the constant temperature box, reducing the humidity inside the constant temperature box, lowering the risk of corrosion of precision castings, thereby extending the service life of the equipment, keeping the inside of the constant temperature box dry, contributing to ensuring the stable operation of the electrical system, reducing the occurrence of equipment failures. At the same time, compared with traditional dehumidification methods, the process of using a condenser to absorb and discharge moisture is more environmentally friendly. The condenser removes moisture through physical condensation without involving the use of chemical agents, avoiding the generation and emission of such chemical pollutants from the source. By recycling the discharged moisture, not only water resources are saved, but also the production cost of the enterprise is reduced; 2. Through the setting of the rotation mechanism, the present invention can rotate the castings to be dehumidified in the constant temperature box, enabling each surface of the castings to be fully exposed to the vacuum environment in the constant temperature box in turn, allowing the vacuum environment to contact the casting surface comprehensively and evenly, thereby more effectively removing moisture, ensuring the consistency of the overall dehumidification effect of the castings, and avoiding the situation of incomplete local dehumidification. At the same time, under the same dehumidification requirements, the rotation method can shorten the time required for the castings to reach the target moisture content, thereby improving production efficiency and increasing the output per unit time; 3. Through the setting of the discharging mechanism, the present invention can push and discharge the castings inside the constant temperature box, improving the continuity of the production of this device, meeting higher production requirements, preventing the castings from staying in the constant temperature box, and avoiding the situation that frequent manual entry and exit of the constant temperature box to carry the castings may cause collision and friction to components such as the door and inner wall of the constant temperature box, accelerating equipment wear, further extending the service life of the constant temperature box, and reducing the maintenance cost and replacement frequency of the constant temperature box. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the whole of the present invention; Figure 2 is one of the sectional views of the whole of the present invention; Figure 3 is another sectional view of the whole of the present invention; Figure 4 is a schematic structural diagram of the rotation mechanism of the present invention; Figure 5 is a schematic structural diagram between the rotating roller and the limiting roller of the present invention; Figure 6 is a schematic structural diagram of the discharging mechanism of the present invention; Figure 7 is a sectional view of the moving plate of the present invention; Figure 8 is a schematic structural diagram of the dehumidification mechanism of the present invention; Figure 9 is a schematic structural diagram of the limiting component of the present invention; Figure 10 This is a schematic structural diagram when the water outlet pipe and the drain pipe of the present invention are disassembled.

[0017] Among them: 1. Constant temperature box; 2. Dehumidification mechanism; 3. Discharging mechanism; 4. Rotating mechanism; 5. Feeding port; 6. Observation window; 7. Constant temperature machine; 8. Vacuum machine; 21. Condenser; 22. Positioning column; 23. Control seat; 24. Water outlet pipe; 25. Mounting seat; 26. Drain pipe; 27. Guide pipe; 28. Limiting seat; 29. Control rod; 210. Extrusion spring; 211. Baffle; 212. Roller; 213. Control board; 214. Plug board; 31. Cylinder; 32. Support seat; 33. Moving plate; 34. Pushing plate; 35. Storage groove; 36. Rotating shaft; 37. Fixed tooth; 38. Driving gear; 39. Servo motor; 41. Support frame; 42. Driving motor; 43. Extended retaining seat; 44. Rotating roller; 45. Limiting roller; 46. Limiting groove. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figure 1 and Figure 2 , a high-efficiency and energy-saving device for vacuum and constant temperature dehumidification of precision castings, including: a constant temperature box 1, a constant temperature machine 7 and a vacuum machine 8 are installed on the outer wall of the constant temperature box 1, and a feeding port 5 is installed on one side of the constant temperature box 1, and two mutually cooperating observation windows 6 are installed on one side of the constant temperature box 1.

[0020] Please refer to Figure 8 , Figure 9 and Figure 10, a dehumidification mechanism 2, the dehumidification mechanism 2 is located at the top of the constant temperature box 1 and is used to dehumidify the castings that need to be dehumidified. The dehumidification mechanism 2 includes a water absorption component, a drainage component, and a limiting component. The water absorption component is located at the top inside the constant temperature box 1 and is used to absorb the boiling water vapor inside the constant temperature box 1. The drainage component is located on one side of the water absorption component and is used to discharge the absorbed moisture. The limiting component is located on one side of the constant temperature box 1 and is used to limit the water absorption component. The water absorption component includes a condenser 21 arranged at the top inside the constant temperature box 1 and two positioning columns 22 fixed on one side of the condenser 21. The two positioning columns 22 are inserted into one side inside the constant temperature box 1. One side of the condenser 21 is fixed with a control seat 23, and one side of the control seat 23 is fixed with two control rods 29. A pull rod is fixed jointly on one side of the two control rods 29. The drainage component includes a water outlet pipe 24 connected to one side of the condenser 21. The water outlet pipe 24 extends to one side of the control seat 23 and is connected with a drain pipe 26. The bottom of the drain pipe 26 is connected with a guide pipe 27. Reinforcing sleeves connected to the constant temperature box 1 are arranged on the outer walls of the water outlet pipe 24 and the drain pipe 26, and a connecting component for connecting the two is arranged between the water outlet pipe 24 and the drain pipe 26. The limiting component includes a limiting seat 28 fixed on one side of the constant temperature box 1. A fixing groove is opened inside the limiting seat 28. A baffle 211 is arranged inside the fixing groove. The baffle 211 abuts against the control seat 23, and a control plate 213 is fixed on one side of the baffle 211. An opening groove for the control plate 213 to move is opened on one side of the limiting seat 28. A compression spring 210 is connected between the baffle 211 and the fixing groove. A plurality of uniformly distributed rollers 212 are arranged on the top of the limiting seat 28. The plurality of rollers 212 all correspond to the control seat 23; First, place the casting to be dehumidified into the constant temperature box 1. Through the continuous operation of the vacuum machine 8, the air inside the constant temperature box 1 is continuously pumped out. When a vacuum is formed inside the constant temperature box 1, the boiling point of the water droplets on the surface of the casting is reduced. When the water droplets evaporate to generate steam, through the rise of the steam, it forms a working connection with the condenser 21. Through the operation of the condenser 21, the steam is converted into water source and transported to the water outlet pipe 24, and then transported into the drain pipe 26 and discharged or recycled through the guide pipe 27. When the condenser 21 needs to be disassembled, first pull the control board 213 to drive the baffle 211 to move. Through the baffle 211, the compression spring 210 is driven to contract. Through the contraction of the compression spring 210, it drives the baffle 211 into the fixing groove. When the baffle 211 enters the fixing groove, it is separated from the control seat 23. Subsequently, pull the pull rod to drive the two control rods 29 to move. Through the movement of the control rods 29, the control seat 23 is driven to move. Through the movement of the control seat 23, the condenser 21 is driven to move. Through the movement of the condenser 21, the positioning column 22 is driven to be separated from the constant temperature box 1. Through the mutual cooperation of the roller 212 and the control seat 23, the condenser 21 is more stable during the movement process. At the same time, the limit seat 28 can support the condenser 21 to avoid falling off during the disassembly process. Similarly, the condenser 21 can be installed.

[0021] Further, as Figure 2 and Figure 8 shown, sliders are fixed on both sides of the control seat 23, a groove body for inserting the control seat 23 is opened on one side of the constant temperature box 1, and sliding grooves for the two sliders to slide are opened on both sides of the groove body; Based on this, through the mutual cooperation of the sliders and the sliding grooves, the control seat 23 is more stable during installation. Through the setting of the groove body, the control seat 23 can be completely inserted on one side of the constant temperature box 1; Furthermore, as Figure 10 shown, the connection component includes a mounting seat 25 fixed on one side of the water outlet pipe 24. A groove cavity for inserting the drain pipe 26 is opened on one side of the mounting seat 25, and a plug board 214 is inserted on one side of the groove cavity, and the plug board 214 corresponds to the drain pipe 26; Based on this, when the control seat 23 moves, it drives the water outlet pipe 24 to move. At this time, pull the plug board 214 to separate it from the drain pipe 26. Through the mutual separation of the plug board 214 and the drain pipe 26, when the water outlet pipe 24 follows the control seat 23 to move, it can be separated from the drain pipe 26 synchronously.

[0022] Please refer to Figure 3 、 Figure 4 and Figure 5, a rotating mechanism 4 for supporting the castings to be dehumidified is arranged inside the constant temperature box 1. The rotating mechanism 4 includes a support frame 41 arranged inside the constant temperature box 1. Two extension stoppers 43 are arranged at the top of the support frame 41. Vent holes are formed inside both of the two extension stoppers 43, and arc grooves are formed on the opposite sides of the two extension stoppers 43. Two groups of rotating rollers 44 and limiting rollers 45 are arranged inside the support frame 41. Two driving motors 42 are fixed on one side of the support frame 41. The output ends of the two driving motors 42 are connected to the two rotating rollers 44. Limiting grooves 46 are formed inside both of the two limiting rollers 45; The two driving motors 42 drive the two rotating rollers 44 to rotate. The rotation of the two rotating rollers 44 enables the castings inside the support frame 41 to rotate effectively. Through the arrangement of a plurality of limiting grooves 46, the castings will not easily change their positions during rotation. Through the arrangement of the two extension stoppers 43, the castings will not fall off during rolling.

[0023] Please also refer to Figure 2 、 Figure 6 and Figure 7 , a discharging mechanism 3 for pushing the castings to be dehumidified is arranged on one side inside the constant temperature box 1. The discharging mechanism 3 includes a moving plate 33 arranged on one side inside the constant temperature box 1. The moving plate 33 cooperates with the support frame 41. A receiving groove 35 is formed on one side of the bottom of the moving plate 33. A rotating shaft 36 is installed inside the receiving groove 35. A pushing plate 34 is fixed on the outer wall of the rotating shaft 36. The pushing plate 34 corresponds to the receiving groove 35. A support seat 32 is fixed on one side of the constant temperature box 1. A cylinder 31 is fixed on the top of the support seat 32. The output end of the cylinder 31 extends into the constant temperature box 1 and is fixed to the moving plate 33. A driving component for driving the rotating shaft 36 to rotate is arranged between the moving plate 33 and the rotating shaft 36. The driving component includes a fixed gear 37 fixed on the outer wall of the rotating shaft 36. A servo motor 39 is fixed inside the moving plate 33. The output end of the servo motor 39 is connected with a driving gear 38. The driving gear 38 meshes with the fixed gear 37.

[0024] Through the setting of the air cylinder 31, the moving plate 33 can form a horizontal movement inside the constant temperature box 1. The movement of the moving plate 33 drives the push plate 34 to move synchronously. The movement of the push plate 34 enables it to contact the dehumidified casting. Subsequently, the servo motor 39 drives the driving gear 38 to rotate. The rotation of the driving gear 38 drives the fixed gear 37 to rotate. The rotation of the fixed gear 37 drives the rotating shaft 36 to rotate. The rotation of the rotating shaft 36 drives the push plate 34 to rotate. Through the rotation of the push plate 34, the casting located in the limiting groove 46 can be effectively pushed, avoiding the situation of damage to the casting caused by forced pushing. When the casting is effectively pushed, the servo motor 39 drives the driving gear 38 to rotate in the reverse direction, thereby enabling the push plate 34 to rotate in the reverse direction, facilitating the pushing of the casting in the next limiting groove 46, and increasing the smoothness of the device.

[0025] 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 principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum constant temperature high efficiency energy saving equipment for precision casting dehumidification, characterized in that: include: A thermostatic box (1), wherein a thermostatic machine (7) and a vacuum machine (8) are installed on the outer wall of the thermostatic box (1), and a material inlet (5) is installed on one side of the thermostatic box (1); and two observation windows (6) that cooperate with each other are installed on one side of the thermostatic box (1); A dehumidification mechanism (2), the dehumidification mechanism (2) being located at the top of the thermostatic box (1) and being used to dehumidify castings that need to be dehumidified, the dehumidification mechanism (2) comprising a water absorption component, a drainage component and a position limiting component, the water absorption component being located at the top of the thermostatic box (1) and being used to absorb boiling water vapor inside the thermostatic box (1), the drainage component being located at one side of the water absorption component and being used to discharge absorbed water, and the position limiting component being located at one side of the thermostatic box (1) and being used to limit the water absorption component.

2. The vacuum constant temperature high-efficiency energy-saving equipment for dehumidification of precision castings according to claim 1 is characterized in that: The water absorption assembly comprises a condenser (21) arranged at the top of the interior of the thermostatic box (1) and two positioning columns (22) fixed to one side of the condenser (21), the two positioning columns (22) being plugged into one side of the interior of the thermostatic box (1), a control seat (23) being fixed to one side of the condenser (21), two control rods (29) being fixed to one side of the control seat (23), and a pull rod being fixed to one side of the two control rods (29).

3. The vacuum constant temperature high-efficiency energy-saving equipment for dehumidification of precision castings according to claim 2 is characterized in that: Slide blocks are fixed on both sides of the control seat (23); a groove body for inserting the control seat (23) is provided on one side of the thermostatic box (1); and sliding grooves for sliding the two slide blocks are provided on both sides of the groove body.

4. The vacuum constant temperature high-efficiency energy-saving equipment for dehumidification of precision castings according to claim 2, characterized in that: The drainage assembly comprises a water outlet pipe (24) connected to one side of the condenser (21), the water outlet pipe (24) extending to one side of the control seat (23) and connected to a drainage pipe (26), the bottom of the drainage pipe (26) being connected to a guide pipe (27), the outer walls of the water outlet pipe (24) and the drainage pipe (26) being provided with a reinforcement sleeve connected to the thermostatic box (1), and a connection assembly for connecting the water outlet pipe (24) and the drainage pipe (26) being provided between the two.

5. The vacuum constant temperature high-efficiency energy-saving equipment for dehumidification of precision castings according to claim 4, characterized in that: The connection assembly comprises a mounting seat (25) fixed to one side of the water outlet pipe (24); a groove cavity for inserting the water outlet pipe (26) is provided on one side of the mounting seat (25); a plug plate (214) is plugged into one side of the groove cavity; the plug plate (214) corresponds to the water outlet pipe (26).

6. The vacuum constant temperature high-efficiency energy-saving equipment for dehumidification of precision castings according to claim 2, characterized in that: The limit assembly comprises a limit seat (28) fixed to one side of the thermostatic box (1); a fixing groove is provided inside the limit seat (28); a baffle (211) is provided inside the fixing groove; the baffle (211) is in contact with the control seat (23); a control board (213) is fixed to one side of the baffle (211); an open groove for the control board (213) to move is provided on one side of the limit seat (28); a compression spring (210) is connected between the baffle (211) and the fixing groove; a plurality of evenly distributed rollers (212) are provided on the top of the limit seat (28); the plurality of rollers (212) all correspond to the control seat (23).

7. The vacuum constant temperature high-efficiency energy-saving equipment for dehumidification of precision castings according to claim 1, characterized in that: A rotating mechanism (4) for supporting a casting to be dehumidified is arranged inside the thermostatic box (1), the rotating mechanism (4) comprising a support frame (41) arranged inside the thermostatic box (1), two extended blocks (43) being arranged on the top of the support frame (41), air holes being provided inside the two extended blocks (43), and arc grooves being provided on opposite sides of the two extended blocks (43).

8. The vacuum constant temperature high-efficiency energy-saving equipment for dehumidification of precision castings according to claim 7, characterized in that: Two groups of rotating rollers (44) and limiting rollers (45) are arranged inside the support frame (41), and two driving motors (42) are fixed on one side of the support frame (41), the output ends of the two driving motors (42) are connected to the two rotating rollers (44), and limiting grooves (46) are arranged inside the two limiting rollers (45).

9. The vacuum constant temperature high-efficiency energy-saving equipment for dehumidification of precision castings according to claim 8, characterized in that: A discharge mechanism (3) for pushing the castings to be dehumidified is arranged on one side of the interior of the thermostatic box (1). The discharge mechanism (3) comprises a movable plate (33) arranged on one side of the interior of the thermostatic box (1). The movable plate (33) cooperates with the support frame (41), and a storage groove (35) is opened on one side of the bottom of the movable plate (33). A rotating shaft (36) is installed inside the storage groove (35). A push plate (34) is fixed to the outer wall of the rotating shaft (36). The push plate (34) corresponds to the storage groove (35). A support seat (32) is fixed on one side of the thermostatic box (1). A cylinder (31) is fixed on the top of the support seat (32). The output end of the cylinder (31) extends to the interior of the thermostatic box (1) and is fixed to the movable plate (33). A driving component for driving the rotating shaft (36) to rotate is arranged between the movable plate (33) and the rotating shaft (36).

10. The vacuum constant temperature high efficiency energy saving equipment for dehumidification of precision castings according to claim 9, characterized in that: The driving assembly comprises a fixed tooth (37) fixed to the outer wall of the rotating shaft (36); a servo motor (39) is fixed inside the moving plate (33); an output end of the servo motor (39) is connected to a driving gear (38); and the driving gear (38) is meshed with the fixed tooth (37).

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