Equipment for lost foam casting

Abstract

The utility model relates to the technical field of lost foam casting, in particular to lost foam casting equipment. According to the lost foam casting equipment, the drying assembly is installed in the drying box, the supporting plate is installed above the drying assembly, the driving assembly is installed on the supporting plate, the rotating disc is arranged at the top of the driving assembly, the foam model cluster is placed on the rotating disc, and the dehumidifier is arranged above the foam model cluster. The dehumidifier is mounted at the top of the drying box; a fan is installed on the inner wall of the side portion of the drying box, a vacuum pump is arranged outside the drying box, and the vacuum pump communicates with the interior of the drying box through a connecting pipe, so that the effect that a foam model cluster needing to be dried is rotationally dried in the drying box is achieved, and the effects of uniform drying and all-directional drying of the foam model cluster are achieved; and the efficiency of drying the foam model cluster is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lost foam casting, in particular to a lost foam casting device. Background Art

[0002] Lost foam casting is a new casting method that combines paraffin or foam models with similar size and shape to the casting into a model cluster, brushes refractory paint and dries it, buries it in dry quartz sand for vibration molding, pours it under negative pressure, vaporizes the model, and liquid metal occupies the position of the model, solidifies and cools to form a casting. Lost foam casting has the advantages of high precision, flexible design, and clean production, and is widely used in the field of mechanical casting.

[0003] In the prior art, after the foam model cluster is coated with the refractory coating, the refractory coating needs to be dried, and the drying temperature cannot exceed 55 degrees, otherwise the foam model cluster will be deformed. In order to solve this problem, patent number CN217370338U discloses a negative pressure drying room for lost foam casting, including a sealed chamber, a heating element, a fan, a vacuum pump and a dehumidifier, wherein the heating element, the fan and the dehumidifier are all arranged inside the sealed chamber, and the vacuum pump is connected to the sealed chamber through a connecting pipe; in the actual lost foam production process, when the foam model cluster after the refractory coating needs to be dried, the refractory coating needs to be dried, and the refractory coating needs to be dried. When drying, the foam model cluster can be placed in a sealed room, and then the vacuum pump is operated to evacuate the sealed room into a low pressure state, so as to reduce the boiling point in the sealed room and accelerate the movement of water molecules on the foam model cluster. Then the heating element is operated to increase the temperature in the sealed room, and the fan is operated to accelerate the evaporation of water on the foam model cluster. Then the dehumidifier is operated to reduce the humidity in the sealed room. However, because the heating element is arranged on the right side of the foam model cluster in the negative pressure drying room, there are problems such as uneven drying, poor drying effect, inability to dry the foam model cluster in all directions, and low drying efficiency. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art and provide a lost foam casting device.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a lost foam casting device, including a drying box, a drying component is installed in the drying box, a support plate is installed above the drying component, a driving component is installed on the support plate, a turntable is provided on the top of the driving component, a foam model cluster is placed on the turntable, a dehumidifier is provided above the foam model cluster, and the dehumidifier is installed on the top of the drying box; a fan is installed on the inner wall of the side of the drying box, a vacuum pump is provided outside the drying box, and the vacuum pump is connected to the inside of the drying box through a connecting pipe.

[0006] Furthermore, the drying component includes a first driving motor installed at the bottom of the drying box, the output end of the first driving motor is provided with a first rotating shaft, a fan is installed on the first rotating shaft, a heating and ventilation plate is provided above the fan, and the heating and ventilation plate corresponds to the support plate.

[0007] Furthermore, a limiting groove is provided on the bottom surface of the drying box, a plurality of limiting columns are installed on the upper surface of the limiting groove, and the first driving motor is installed on the upper surface of the limiting groove and cooperates with the limiting columns.

[0008] Furthermore, the driving assembly includes a second driving motor, an output end of the second driving motor is provided with a second rotating shaft, and the second rotating shaft is connected to the turntable.

[0009] Furthermore, a plurality of ventilation holes are provided on the support plate, the heating and ventilation plate, and the turntable.

[0010] Furthermore, a closed door is installed on the side surface of the drying box, and a plurality of hinges are installed between the closed door and the drying box.

[0011] Furthermore, a handle for opening the closed door is installed on the closed door.

[0012] Furthermore, the fans include two fans, which are symmetrically arranged on the inner wall of the side of the drying box and correspond to the foam model clusters.

[0013] Furthermore, a switch seat is installed on one side of the drying box, and a control switch key is installed on one side of the switch seat.

[0014] Furthermore, the switch seat and the closed door are located on the same side of the drying box.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] In the actual lost foam production process of the present application, when it is necessary to dry the foam model clusters after coating with refractory coating, the foam model clusters can be placed in a drying box, and then the vacuum pump is operated to evacuate the drying box into a low-pressure state, thereby lowering the boiling point in the drying box and accelerating the movement of water molecules on the foam model clusters. Subsequently, the drying component and the driving component are operated to increase the temperature in the drying box, and the fan is operated to accelerate the evaporation of water on the foam model clusters. Subsequently, the dehumidifier is operated to reduce the humidity in the sealed room, thereby realizing the effect of rotating and drying the foam model clusters that need to be dried in the drying box, achieving the effect of uniformly drying and all-round drying of the foam model clusters, and greatly improving the efficiency of drying the foam model clusters. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the lost foam casting equipment in the preferred embodiment of the utility model;

[0018] Figure 2 It is a side view of the lost foam casting equipment in the preferred embodiment of the utility model;

[0019] Figure 3 It is a schematic diagram of the internal structure of the lost foam casting equipment in the preferred embodiment of the utility model;

[0020] Figure 4 It is an internal front view of the lost foam casting equipment in the preferred embodiment of the utility model.

[0021] Reference numerals: 1, drying box; 2, drying assembly; 201, first drive motor; 202, first rotating shaft; 203, fan; 204, heating and ventilation plate; 3, support plate; 4, drive assembly; 401, second drive motor; 402, second rotating shaft; 5, turntable; 6, foam model cluster; 7, dehumidifier; 8, fan; 9, vacuum pump; 10, limit slot; 11, limit column; 12, closed door; 13, handle; 14, control switch. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-Figure 4 As shown, a preferred embodiment of the utility model is a lost foam casting device, comprising a drying box 1, a drying component 2 is installed in the drying box 1, a support plate 3 is installed above the drying component 2, a driving component 4 is installed on the support plate 3, a turntable 5 is provided on the top of the driving component 4, a foam model cluster 6 is placed on the turntable 5, a dehumidifier 7 is provided above the foam model cluster 6, and the dehumidifier 7 is installed on the top of the drying box 1; a fan 8 is installed on the inner wall of the side of the drying box 1, a vacuum pump 9 is provided outside the drying box 1, and the vacuum pump 9 is connected to the inside of the drying box 1 through a connecting pipe, so as to realize the effect of rotating and drying the foam model clusters that need to be dried in the drying box, so as to achieve the effect of uniform drying and all-round drying of the foam model clusters, and greatly improve the efficiency of drying the foam model clusters.

[0024] As a preferred embodiment of the utility model, it may also have the following additional technical features: the drying component 2 includes a first driving motor 201 installed at the bottom of the drying box 1, the output end of the first driving motor 201 is provided with a first rotating shaft 202, a fan 203 is installed on the first rotating shaft 202, a heating and ventilation plate 204 is arranged above the fan 203, and the heating and ventilation plate 204 corresponds to the support plate 3. Thus, by starting the first driving motor 201, the fan 203 is driven to rotate, so that the heat on the heating and ventilation plate is brought to the foam model cluster, and the foam model cluster is heated and air-dried, so as to achieve the purpose of rapid drying, which greatly improves the drying speed.

[0025] In this embodiment, the bottom surface of the drying box 1 is provided with a limiting groove 10, the upper surface of the limiting groove 10 is provided with a plurality of limiting columns 11, and the first driving motor 201 is installed on the upper surface of the limiting groove 10 and cooperates with the limiting columns 11. Thus, the stability of the drying assembly can be enhanced.

[0026] In this embodiment, the driving assembly 4 includes a second driving motor 401, and the output end of the second driving motor 401 is provided with a second rotating shaft 402, and the second rotating shaft 402 is connected to the rotating disk 5. Thus, the foam model clusters to be dried are rotated and dried in the drying box, achieving the effect of uniform drying and all-round drying of the foam model clusters.

[0027] In this embodiment, a plurality of ventilation holes are provided on the support plate 3, the heating and ventilation plate 204, and the rotating disk 5. Thus, the heat can be circulated and the rapid drying of the foam model cluster can be ensured.

[0028] In this embodiment, a closed door 12 is installed on the side surface of the drying box 1, a plurality of hinges are installed between the closed door 12 and the drying box 1, and a handle 13 for opening the closed door 12 is installed on the closed door 12. Thus, it is convenient for the staff to perform drying operations.

[0029] In this embodiment, the fans 8 include two fans 8, which are symmetrically arranged on the inner wall of the side of the drying box 1 and correspond to the foam model clusters 5. Thus, the air flow in the drying box can be increased, and the drying effect can be improved.

[0030] In this embodiment, a switch base 13 is installed on one side of the drying box 1, a control switch key 14 is installed on one side of the switch base 13, and the switch base 13 and the closed door 12 are located on the same side of the drying box 1. Therefore, the drying operation is convenient for the staff, and the foam model cluster can be dried by pressing the switch key 14.

[0031] The working principle of the utility model is as follows: in the actual lost foam production process, when it is necessary to dry the foam model cluster 6 after the refractory coating is applied, the foam model cluster can be placed in the drying box 1, and then the vacuum pump 9 is operated to evacuate the drying box 1 into a low pressure state, so that the boiling point in the drying box 1 is reduced, and the movement of water molecules on the foam model cluster 6 is accelerated, and then the drying component 2 and the driving component 4 are operated to increase the temperature in the drying box 1, and the fan 8 is operated to accelerate the evaporation of water on the foam model cluster, and then the dehumidifier 7 is operated to reduce the humidity in the sealed room, so as to realize the effect of rotating and drying the foam model cluster that needs to be dried in the drying box, so as to achieve the effect of uniform drying and all-round drying of the foam model cluster, greatly improving the efficiency of drying the foam model cluster, and a controller and a power supply for providing electricity to each device are installed in the drying box, and the controller is electrically connected to the first drive motor, the second drive motor, the fan, the dehumidifier, the vacuum pump, the control switch and other devices, and the circuit connection can be realized according to the prior art, which will not be described in detail in this embodiment.

[0032] Under the premise that no conflict occurs, those skilled in the art may freely combine and superimpose the above-mentioned additional technical features.

[0033] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A lost foam casting device, characterized in that: It comprises a drying box, wherein a drying component is installed in the drying box, a support plate is installed above the drying component, a driving component is installed on the support plate, a turntable is provided on the top of the driving component, a foam model cluster is placed on the turntable, a dehumidifier is provided above the foam model cluster, and the dehumidifier is installed on the top of the drying box; a fan is installed on the inner wall of the side of the drying box, a vacuum pump is provided outside the drying box, and the vacuum pump is connected to the inside of the drying box through a connecting pipe.

2. The lost foam casting equipment according to claim 1, characterized in that: The drying component includes a first driving motor installed at the bottom of the drying box, the output end of the first driving motor is provided with a first rotating shaft, a fan is installed on the first rotating shaft, a heating and ventilation plate is arranged above the fan, and the heating and ventilation plate corresponds to the support plate.

3. The lost foam casting equipment according to claim 2, characterized in that: The bottom surface of the drying box is provided with a limiting groove, the upper surface of the limiting groove is provided with a plurality of limiting columns, and the first driving motor is installed on the upper surface of the limiting groove and cooperates with the limiting columns.

4. The lost foam casting equipment according to claim 1, characterized in that: The driving assembly comprises a second driving motor, an output end of the second driving motor is provided with a second rotating shaft, and the second rotating shaft is connected to the rotating disk.

5. The lost foam casting equipment according to claim 1, characterized in that: The support plate, the heating and ventilation plate and the rotating disk are all provided with a plurality of ventilation holes.

6. The lost foam casting equipment according to claim 1, characterized in that: A closed door is installed on the side surface of the drying box, and a plurality of hinges are installed between the closed door and the drying box.

7. The lost foam casting equipment according to claim 6, characterized in that: A handle for opening the closed door is installed on the closed door.

8. The lost foam casting equipment according to claim 1, characterized in that: The fans include two fans, which are symmetrically arranged on the inner wall of the side of the drying box and correspond to the foam model clusters.

9. The lost foam casting equipment according to claim 6, characterized in that: A switch seat is installed on one side of the drying box, and a control switch key is installed on one side of the switch seat.

10. The lost foam casting equipment according to claim 9, characterized in that: The switch seat and the closed door are located on the same side of the drying box.

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