Drying furnace for powder metallurgy parts
By introducing rotating components and circulating hot air systems into the powder metallurgical parts drying furnace, the problem of uneven heat conduction of traditional drying furnaces is solved, and the uniform drying and efficient drying of parts are achieved.
Patent Information
- Application Number
- CN202420258397.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-02
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-02-02
AI Technical Summary
The traditional powder metallurgy parts drying furnace is flat plate type, with uneven heat conduction, resulting in large differences in the surface and internal temperature of the parts, uneven drying, affecting the quality of the parts.
A drying furnace is designed including a housing, a ventilation chamber, a drying chamber, a drying chamber, a first and second ventilation grooves, a drying assembly and a rotating assembly. The automatic rotation of the parts is achieved by the rotating assembly, and the drying assembly is generated by a heating wire and a fan. The hot air is circulated, and the air guide plate guides the hot air to the ventilation tank to ensure uniform heating.
The uniform drying of parts is achieved, the drying quality and efficiency are improved, local overheating is avoided, and the consistency of temperatures of various parts is ensured.
Smart Images
Figure CN222187647U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of drying furnaces, and more specifically, particularly relates to a drying furnace used for powder metallurgy parts. Background Art
[0002] Powder metallurgy technology is a new material preparation method. It manufactures parts of various shapes and properties by pressing metal powder into shape and sintering it. It is widely used in high-tech fields such as aviation, aerospace, and nuclear industry. In the manufacturing process of powder metallurgy parts, the drying furnace is a very important equipment, which is used to remove moisture from the parts and improve the quality and reliability of the parts.
[0003] For example, the Chinese utility model patent with patent number 202222362215.0 provides a powder metallurgy parts drying furnace. The drying furnace is provided with a heating device, a motor and an impeller. When in use, the heating device is started to heat the air in the drying furnace, and then the motor is started. The motor drives the impeller to rotate and blows the air heated by the heating device to the parts for drying. However, the traditional drying furnace is a flat plate type, and the heat conduction is uneven, which can easily lead to a large temperature difference between the surface and the inside of the parts, resulting in uneven drying of the parts and affecting the quality of the parts. Utility Model Content
[0004] In order to solve the above technical problems, the utility model provides a drying furnace for powder metallurgy parts to solve the technical problem in the prior art that the traditional drying furnace is a flat plate type with uneven heat conduction, which easily leads to a large temperature difference between the surface and the inside of the parts, resulting in uneven drying of the parts and affecting the quality of the parts.
[0005] The purpose and effect of the drying furnace for powder metallurgy parts of the utility model are achieved by the following specific technical means:
[0006] A drying furnace for powder metallurgy parts comprises a shell, a ventilation cavity is provided on one side of the shell, a drying box is fixedly connected to the bottom of the ventilation cavity, a drying cavity is provided on one side of the drying box, a plurality of groups of first ventilation slots are provided on one side of the drying cavity, a second ventilation slot is provided on the other side, the drying cavity is connected to the ventilation cavity through the plurality of groups of the first ventilation slots and the second ventilation slots, a drying component is provided on one side of the drying box, and a rotating component is provided at the bottom of the drying cavity.
[0007] According to a preferred embodiment, the drying component includes a heating wire, the heating wire is arranged on one side of the second ventilation slot, a fan bracket is arranged on the other side of the second ventilation slot, and a fan is arranged in the fan bracket.
[0008] According to a preferred embodiment, a first mounting hole is formed in the housing corresponding to the fan, a fan motor is disposed on the first mounting hole, and a protective cover is disposed around the fan motor.
[0009] According to a preferred embodiment, the drying component further includes an air guide plate, and the air guide plate is provided on one side of the ventilation cavity corresponding to the plurality of groups of the first ventilation slots.
[0010] According to a preferred embodiment, the rotating assembly includes a rotating table, a second mounting hole is opened at the bottom of the drying chamber, and the rotating table is arranged on the top of the second mounting hole.
[0011] According to a preferred embodiment, the rotating assembly also includes a rotating motor, the outer shell is provided with a through slot corresponding to the second mounting hole, a mounting seat is provided in the through slot, the rotating motor is provided at the bottom of the mounting seat, a through hole is provided on the mounting seat, and the main shaft of the rotating motor passes through the through hole to be connected to the rotating table.
[0012] According to a preferred embodiment, a door frame is provided at the opening of the ventilation cavity, the door frame is connected to a switchable door panel via multiple sets of hinges, and the door panel is provided with a heat-resistant sealing ring corresponding to the drying cavity.
[0013] According to a preferred embodiment, a handle is provided on the door panel, and a plurality of groups of support columns are provided on the bottom of the shell.
[0014] Compared with the prior art, the utility model has the following beneficial effects:
[0015] 1. Through the setting of the rotating component, when using the drying furnace, the user places the parts to be dried on the rotating table, and then starts the rotating motor. The rotating motor drives the rotating table to rotate, so that all parts of the parts can be dried evenly, preventing the problem of local overheating that may occur during static drying. Compared with traditional static drying that requires manual rotation, this automatic rotating structure can perform drying fully automatically and efficiently, solving the problem of uneven drying in traditional drying furnaces and improving the uniformity and efficiency of drying.
[0016] 2. Through the setting of the drying component, when using the drying furnace, powder metallurgy parts can be dried; the heat generated by the heating wire is blown into the ventilation cavity through the fan in the fan bracket, and then the air flow can be guided to the multiple groups of first ventilation slots through the air guide plate on one side of the ventilation cavity to dry the parts, so that the internal hot air forms a circulating flow effect. In this way, every part of the powder metallurgy parts can be efficiently and evenly heat treated. It solves the problem that the traditional static drying method easily leads to a large temperature difference between the surface and the inside of the part, and can make the temperature of each part and the inside and outside of the part consistent, thereby improving the drying quality and efficiency.
[0017] 3. Through the setting of the door frame and the door panel, when using the drying oven, the door panel can be easily opened and closed to facilitate the placement and maintenance of the parts in the drying chamber; the heat-resistant sealing ring on the door panel can ensure the sealing performance of the drying chamber to prevent heat loss and external dust from entering; through the setting of multiple groups of support columns, multiple groups of support columns are installed at the bottom of the shell, which can provide stable support to ensure the stability and safety of the drying oven. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the structure of a drying furnace for powder metallurgy parts of the utility model;
[0019] Figure 2 It is an exploded view of a drying furnace for powder metallurgy parts of the utility model;
[0020] Figure 3 This is a schematic diagram of the structure of the drying components assembled in the drying furnace for powder metallurgy parts of the utility model;
[0021] Figure 4 for Figure 3 Schematic diagram of the structure after decomposition.
[0022] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:
[0023] 11. Shell; 12. Ventilation chamber; 13. Drying box; 14. Drying chamber; 15. First ventilation slot; 16. Second ventilation slot; 21. Heating wire; 22. Fan bracket; 23. Fan; 24. First mounting hole; 25. Fan motor; 26. Protective cover; 27. Air guide plate; 31. Rotating table; 32. Second mounting hole; 33. Rotating motor; 34. Mounting seat; 41. Door frame; 42. Hinge; 43. Door panel; 44. Heat-resistant sealing ring; 45. Handle; 46. Support column. DETAILED DESCRIPTION
[0024] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.
[0025] Example:
[0026] As attached Figure 1 To Attachment Figure 4 As shown:
[0027] The utility model provides a drying furnace for powder metallurgy parts, comprising a shell 11, a ventilation cavity 12 is provided on one side of the shell 11, and hot air in a drying box 13 is circulated. The drying box 13 is fixedly connected to the bottom of the ventilation cavity 12, a drying cavity 14 is provided on one side of the drying box 13, a plurality of groups of first ventilation slots 15 are provided on one side of the drying cavity 14, and a second ventilation slot 16 is provided on the other side. The drying cavity 14 is connected with the ventilation cavity 12 through the plurality of groups of first ventilation slots 15 and the second ventilation slots 16. A drying component is provided on one side of the drying box 13, and a rotating component is provided at the bottom of the drying cavity 14, which can drive the powder parts to rotate automatically, prevent local overheating, and further improve the utilization rate of heat, thereby improving the drying efficiency and quality.
[0028] Among them, see Figure 2 , Figure 3 and Figure 4 As shown, the drying component includes a heating wire 21. The heating wire 21 is arranged on one side of the second ventilation slot 16, which can quickly and evenly heat the air in the drying chamber 14; a fan bracket 22 is arranged on the other side of the second ventilation slot 16, which can stably support the fan 23, and the fan bracket 22 is provided with the fan 23.
[0029] Among them, see Figure 3 and Figure 4 As shown, the housing 11 is provided with a first mounting hole 24 corresponding to the fan 23, and a fan motor 25 is arranged on the first mounting hole 24. The fan motor 25 is responsible for providing power drive for the corresponding fan 23 so that the fan 23 can rotate and work; in order to prevent the heat and high voltage electricity generated by the high-speed rotation of the fan motor 25 from causing harm to the operator, a protective cover 26 is arranged around the fan motor 25. The protective cover 26 is made of heat-insulating material and can effectively block the heat generated by the fan motor 25; at the same time, the use of insulating material can effectively prevent the occurrence of electric shock accidents; by installing the protective cover 26, the safety of the operator can be protected to the maximum extent while ensuring the working efficiency of the fan 23.
[0030] Among them, see Figure 4 As shown, in order to allow the hot air in the ventilation chamber 12 to be uniformly introduced into the drying chamber 14, the drying component is also provided with an air guide plate 27; an air guide plate 27 is provided on one side of the ventilation chamber 12 corresponding to the multiple groups of first ventilation slots 15; the air guide plate 27 is made of heat-resistant and wear-resistant material. Through the setting of the air guide plate 27, the hot air heated in the ventilation chamber 12 can be effectively introduced into various areas in the drying chamber 14. At the same time, the smooth surface of the air guide plate 27 can reduce the resistance of the hot air during the introduction process, which is conducive to faster and more uniform heat transfer to the powder parts to be dried in the drying chamber 14.
[0031] Among them, see Figure 2As shown, the rotating assembly includes a rotating table 31, a second mounting hole 32 is opened at the bottom of the drying chamber 14, and a rotating table 31 is arranged on the top of the second mounting hole 32. When the powder parts are placed in the drying chamber 14, they can realize their own rotation along with the uniform rotation of the rotating table 31, so that it can ensure that every part of the powder parts is fully exposed to the hot air, accelerate its drying speed and improve the drying efficiency.
[0032] Among them, see Figure 2 As shown, the rotating assembly also includes a rotating motor 33, and the housing 11 is provided with a through slot corresponding to the second mounting hole 32, and a mounting seat 34 is provided in the through slot. The rotating motor 33 is provided at the bottom of the mounting seat 34. The rotating motor 33 is a reduction motor, which can provide stable low-speed rotating power; at the same time, a through hole matching the size of the main shaft of the rotating motor 33 is provided at the top of the mounting seat 34, and the through hole enables the main shaft of the rotating motor 33 to extend from the bottom into the mounting seat 34; after the main shaft extends from the through hole, it is connected and fixed to the rotating table 31 located at the top of the second mounting hole 32. In this way, when the rotating motor 33 is running, the rotating table 31 can be driven to rotate through the main shaft, thereby realizing the uniform rotation of the powder parts in the drying chamber 14.
[0033] Among them, see Figure 1 and Figure 2 As shown, in order to facilitate the removal of powder parts after the drying chamber 14 is heated, a door frame 41 is provided at the opening of the ventilation chamber 12. The door frame 41 is made of heat-resistant material and connected to the outer shell 11. The door frame 41 is connected to a number of movable door panels 43 through multiple sets of heat-resistant hinges 42; the edge of the door panel 43 is provided with a heat-resistant sealing ring 44 with good heat resistance; when the powder parts are dried, the treated powder parts can be directly taken out by opening the door panel 43. At this time, the heat-resistant sealing ring 44 is used to seal the door panel 43 and the opening of the drying chamber 14, which can effectively prevent the hot air after heating from leaking out, thereby maintaining the high temperature state in the chamber; at the same time, the design of multiple sets of hinges 42 can ensure that each door panel 43 is opened evenly and reliably, providing good operating conditions for taking out parts and improving work efficiency.
[0034] Among them, see Figure 2 As shown, for the convenience of operators, a handle 45 is provided on the outer surface of each door panel 43. The handle 45 is made of heat-resistant material and is fixedly connected to the door panel 43. In addition, in order to ensure the stability of the drying equipment housing 11, a plurality of groups of heat-resistant support columns 46 are provided at the bottom of the housing 11. The bottom ends of the support columns 46 are fixed to the work surface, and the top ends are fixedly connected to the housing 11, which plays a good supporting role. The support columns 46 can also enable the housing 11 to be firmly installed on the work surface, thereby ensuring the stability of the equipment during operation.
[0035] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.
Claims
1. A drying furnace for powder metallurgy parts, characterized in that: The invention comprises a shell (11), a ventilation cavity (12) is provided on one side of the shell (11), a drying box (13) is fixedly connected to the bottom of the ventilation cavity (12), a drying cavity (14) is provided on one side of the drying box (13), a plurality of first ventilation slots (15) are provided on one side of the drying cavity (14), a second ventilation slot (16) is provided on the other side of the drying cavity (14), the drying cavity (14) is connected to the ventilation cavity (12) via the plurality of first ventilation slots (15) and the second ventilation slots (16), a drying component is provided on one side of the drying box (13), and a rotating component is provided at the bottom of the drying cavity (14).
2. The drying furnace for powder metallurgy parts according to claim 1, characterized in that: The drying component comprises a heating wire (21), the heating wire (21) is arranged on one side of the second ventilation slot (16), a fan bracket (22) is arranged on the other side of the second ventilation slot (16), and a fan (23) is arranged in the fan bracket (22).
3. The drying furnace for powder metallurgy parts according to claim 2, characterized in that: The housing (11) is provided with a first mounting hole (24) corresponding to the fan (23); a fan motor (25) is arranged on the first mounting hole (24); and a protective cover (26) is arranged around the fan motor (25).
4. The drying furnace for powder metallurgy parts according to claim 3, characterized in that: The drying component further comprises an air guide plate (27), and the air guide plate (27) is arranged on one side of the ventilation cavity (12) corresponding to the plurality of groups of the first ventilation slots (15).
5. The drying furnace for powder metallurgy parts according to claim 1, characterized in that: The rotating assembly comprises a rotating platform (31), a second mounting hole (32) is opened at the bottom of the drying chamber (14), and the rotating platform (31) is arranged at the top of the second mounting hole (32).
6. The drying furnace for powder metallurgy parts according to claim 5, characterized in that: The rotating assembly also includes a rotating motor (33); the housing (11) is provided with a through slot corresponding to the second mounting hole (32); a mounting seat (34) is provided in the through slot; the rotating motor (33) is provided at the bottom of the mounting seat (34); a through hole is provided on the mounting seat (34); a main shaft of the rotating motor (33) passes through the through hole and is connected to the rotating platform (31).
7. The drying furnace for powder metallurgy parts according to claim 1, characterized in that: A door frame (41) is provided at the opening of the ventilation cavity (12); the door frame (41) is connected to a switchable door panel (43) via a plurality of hinges (42); and the door panel (43) is provided with a heat-resistant sealing ring (44) corresponding to the drying cavity (14).
8. The drying furnace for powder metallurgy parts according to claim 7, characterized in that: The door panel (43) is provided with a handle (45), and the bottom of the housing (11) is provided with a plurality of groups of support columns (46).