Partition heating structure of high-cleanliness nitrogen vertical solidification furnace

Abstract

The utility model relates to nitrogen vertical solidification furnace technical field, and disclose a kind of zoning heating structure of high clean nitrogen vertical solidification furnace, it includes furnace body, the outer plate is connected in the middle part of furnace body one side wall by bolt, the furnace door is connected in the outer wall lower part of outer plate by hinge, the inner bottom of furnace body is provided with lifting plate, the middle part of lifting plate is provided with lead screw in one side, the middle part of the end of lifting plate away from lead screw is provided with slide bar. The structural design of lifting plate, lead screw, slide bar, first connecting seat, second connecting seat and limit plate makes lifting plate can be accurately lifted in furnace body, to meet the nitrogen solidification processing needs of workpiece;The structural design of exhaust cylinder, exhaust fan, movable cover, support rod and electromagnet makes the top of furnace body have quick exhaust structure, so that the furnace body can be quickly cooled when needing quick cooling after use, convenient maintenance.

Description

Technical Field

[0001] This utility model belongs to the technical field of nitrogen vertical curing ovens, specifically a zoned heating structure for a high-purity nitrogen vertical curing oven. Background Technology

[0002] Curing refers to a production process in the electronics industry and other industries where heating, resin curing, and drying of components are used to enhance the bonding stress of materials. The container used for curing is called a curing oven. Nitriding is a chemical heat treatment process that allows nitrogen atoms to penetrate into the surface layer of a workpiece at a specific temperature and in a specific medium. Products treated with nitriding exhibit excellent wear resistance, fatigue resistance, corrosion resistance, and high-temperature resistance.

[0003] However, the existing lifting structure of high-purity nitrogen vertical curing furnace is difficult to adjust precisely, making it impossible to accurately transport the workpiece to different temperature zones. The furnace body cannot cool down quickly after use, which is inconvenient. Therefore, a zoned heating structure for high-purity nitrogen vertical curing furnace is proposed here. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a partitioned heating structure for a high-purity nitrogen vertical curing oven, which effectively solves the problems existing in the current nitrogen vertical curing oven.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a zoned heating structure for a high-purity nitrogen vertical curing furnace, comprising a furnace body, characterized in that: an outer mounting plate is bolted to the middle of one side wall of the furnace body; a furnace door is hinged to the lower part of the outer wall of the outer mounting plate; a lifting plate is provided at the bottom of the furnace body; a lead screw is provided on one side of the middle of the lifting plate; a sliding rod is provided at the middle of the end of the lifting plate away from the lead screw; a sliding sleeve is embedded at the connection between the lifting plate and the sliding rod; limit plates are connected to the upper and lower ends of the sliding rod through slots; and a first... A connecting seat is bolted to the top of the furnace body located on the upper periphery of the lead screw. Heating plates are bolted to the inner walls of the furnace body on both sides of the lifting plate. A connecting pipe is installed on the lower part of the other side wall of the furnace body. A stepper motor is installed at the upper end of the lead screw. An exhaust duct is welded to the middle of the upper end of the furnace body. An exhaust fan is installed inside the exhaust duct. A movable cover is installed at the upper end of the exhaust duct. Support rods are installed on both sides of the upper end of the exhaust duct, penetrating the movable cover. A top plate is installed at the upper end of the support rods. An electromagnet is bolted to the middle of the lower end of the top plate.

[0006] Preferably, the lead screw is threadedly connected to the lifting plate, the slide rod is slidably connected to the lifting plate through the sliding sleeve, the limiting plate located at the upper part of the slide rod is bolted to the top of the furnace body, and the limiting plate located at the lower part of the slide rod is bolted to the bottom of the furnace body. When the lead screw rotates, it can drive the lifting plate to move up and down with the assistance of the slide rod.

[0007] Preferably, the stepper motor is bolted to the upper end of the furnace body, the drive output end of the stepper motor is connected to the upper end of the lead screw via a coupling, the lead screw is connected to the middle of the second connecting seat via a bearing, and the first connecting seat is bolted to the bottom end of the furnace body. When the stepper motor is working, it can drive the lead screw to rotate forward or backward, so that the lead screw drives the lifting plate to rise and fall.

[0008] Preferably, there are five groups of heating plates, each group is arranged opposite to each other and equidistantly at different heights on the inner wall of the furnace body. The connecting pipe is welded to the side wall of the furnace body. The heating plates are equipped with temperature sensors. The temperature of each group of heating plates can be controlled by an external control device. The furnace body can be connected to a nitrogen tank through the connecting pipe to fill the furnace body with high-purity nitrogen.

[0009] Preferably, the exhaust fan is bolted to the inner wall of the exhaust duct, the lower end of the movable cover overlaps with the lower end of the exhaust duct, the support rod is slidably connected to the movable cover, and the exhaust fan can extract air from the furnace body when it is working.

[0010] Preferably, the lower end of the support rod is connected to the upper end of the exhaust duct by a thread, the upper end of the support rod is connected to the lower end of the top plate by a screw, and the electromagnet is connected to the middle of the lower end of the top plate by a bolt. When the electromagnet is working, it can lift the movable cover, so that the movable cover is separated from the upper end of the exhaust duct.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] In the zoned heating structure of this high-purity nitrogen vertical curing oven, the structural design of the lifting plate, lead screw, slide bar, first connecting seat, second connecting seat, and limiting plate allows the lifting plate to move up and down precisely within the oven to meet the nitrogen curing processing requirements of the workpiece. The structural design of the exhaust duct, exhaust fan, movable cover, support rod, and electromagnet ensures that the top of the oven has a rapid exhaust structure, allowing the oven to cool down quickly after use and facilitating maintenance. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a front sectional view of the furnace body in this utility model;

[0016] Figure 3 This is a schematic diagram of the connection structure of the lifting plate, lead screw, and slide bar in this utility model;

[0017] In the diagram: 1. Furnace body; 2. Outer panel; 3. Furnace door; 4. Lifting plate; 5. Lead screw; 6. Slide rod; 7. Limiting plate; 8. First connecting seat; 9. Second connecting seat; 10. Heating plate; 11. Connecting pipe; 12. Stepper motor; 13. Exhaust duct; 14. Exhaust fan; 15. Movable cover; 16. Support rod; 17. Top plate; 18. Electromagnet. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] In this embodiment, by Figure 1-3 The present invention comprises a furnace body 1, characterized in that: an outer plate 2 is bolted to the middle of one side wall of the furnace body 1; a furnace door 3 is hinged to the lower part of the outer wall of the outer plate 2; a lifting plate 4 is provided at the bottom of the furnace body 1; a lead screw 5 is provided on one side of the middle of the lifting plate 4; a sliding rod 6 is provided at the middle of the end of the lifting plate 4 away from the lead screw 5; a sliding sleeve is embedded at the connection between the lifting plate 4 and the sliding rod 6; limit plates 7 are connected to the upper and lower ends of the sliding rod 6 through slots; a first connecting seat 8 is connected to the lower end of the lead screw 5 through a bearing; and the top of the furnace body 1, located on the upper periphery of the lead screw 5, is bolted to the upper part of the lead screw 5. A second connecting seat 9 is connected to the inner wall of the furnace body 1 on both sides of the lifting plate 4, and electric heating plates 10 are bolted to each other. A connecting pipe 11 is provided at the lower part of the other side wall of the furnace body 1. A stepper motor 12 is provided at the upper end of the lead screw 5. An exhaust duct 13 is welded to the middle of the upper end of the furnace body 1. An exhaust fan 14 is provided inside the exhaust duct 13. A movable cover 15 is provided at the upper end of the exhaust duct 13. Support rods 16 are provided on both sides of the upper end of the exhaust duct 13. The support rods 16 pass through the movable cover 15. A top plate 17 is provided at the upper end of the support rods 16. An electromagnet 18 is bolted to the middle of the lower end of the top plate 17.

[0020] The lead screw 5 is connected to the lifting plate 4 by a thread, the slide rod 6 is slidably connected to the lifting plate 4 by a sliding sleeve, the limiting plate 7 located at the upper part of the slide rod 6 is connected to the top of the furnace body 1 by bolts, and the limiting plate 7 located at the lower part of the slide rod 6 is connected to the bottom of the furnace body 1 by bolts. When the lead screw 5 rotates, it can drive the lifting plate 4 to rise and fall with the assistance of the slide rod 6.

[0021] The stepper motor 12 is bolted to the upper end of the furnace body 1. The transmission output end of the stepper motor 12 is connected to the upper end of the lead screw 5 through a coupling. The lead screw 5 is connected to the middle of the second connecting seat 9 through a bearing. The first connecting seat 8 is bolted to the bottom of the furnace body 1. When the stepper motor 12 is working, it can drive the lead screw 5 to rotate forward or backward so that the lead screw 5 can drive the lifting plate 4 to rise and fall.

[0022] There are five sets of electric heating plates 10, each set is arranged opposite to each other and equidistantly at different heights on the inner wall of the furnace body 1. The connecting pipe 11 is welded to the side wall of the furnace body 1. The electric heating plates 10 are equipped with temperature sensors. The temperature of each set of electric heating plates 10 can be controlled by external control equipment. The furnace body 1 can be connected to a nitrogen tank through the connecting pipe 11 to fill the furnace body 1 with high-purity nitrogen.

[0023] Among them, the exhaust fan 14 is connected to the inner wall of the exhaust duct 13 by bolts, the lower end of the movable cover 15 overlaps with the lower end of the exhaust duct 13, the support rod 16 is slidably connected to the movable cover 15, the lower end of the support rod 16 is connected to the upper end of the exhaust duct 13 by threads, the upper end of the support rod 16 is connected to the lower end of the top plate 17 by screws, and the electromagnet 18 is connected to the middle of the lower end of the top plate 17 by bolts. When the electromagnet 18 is working, it can lift the movable cover 15, so that the movable cover 15 is separated from the upper end of the exhaust duct 13. When the exhaust fan 14 is working, it can extract the air from the furnace body 1.

[0024] Working Principle: The vertical curing oven uses an external power supply and is controlled by an external control device. When using the vertical curing oven, the oven door 3 can be opened, and the workpiece to be cured can be placed on the lifting plate 4. The oven body 1 can be connected to a nitrogen tank through the connecting pipe 11 to fill the oven body 1 with high-purity nitrogen. The electric heating plate 10 has a built-in temperature sensor, which can provide real-time temperature feedback to the external control device. The temperature of the five sets of electric heating plates 10 can be controlled by the external control device. When the stepper motor 12 is working, it can drive the lead screw 5 to rotate forward or backward, so that the lead screw 5, with the assistance of the slide rod 6, can drive the lifting plate 4 to rise and fall. In this way, the lifting plate 4 can rise step by step under the control of the external control device, and the temperature gradually rises from bottom to top for nitrogen curing treatment. When the vertical curing oven needs to be cooled down quickly after use, the oven door 3 can be opened, and the electromagnet 18 can be activated to lift the movable cover 15. When the exhaust fan 14 is working, it can extract the air in the oven body 1, so that the high-temperature air in the oven body 1 can be quickly discharged to achieve the purpose of rapid cooling.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A zoned heating structure for a high-purity nitrogen vertical curing furnace, comprising a furnace body (1), characterized in that: An outer plate (2) is bolted to the middle of one side wall of the furnace body (1). A furnace door (3) is hinged to the lower part of the outer wall of the outer plate (2). A lifting plate (4) is provided at the bottom of the furnace body (1). A lead screw (5) is provided on one side of the middle of the lifting plate (4). A sliding rod (6) is provided at the middle of the end of the lifting plate (4) away from the lead screw (5). A sliding sleeve is embedded at the position where the lifting plate (4) connects to the sliding rod (6). Limiting plates (7) are connected to both the upper and lower ends of the sliding rod (6) through slots. A first connecting seat (8) is connected to the lower end of the lead screw (5) through a bearing. A second connecting seat (9) is bolted to the top of the furnace body (1) located on the upper periphery of the lead screw (5). Electric heating plates (10) are bolted to the inner walls of the furnace body (1) on both sides of the lifting plate (4). A connecting pipe (11) is provided at the lower part of the other side wall of the furnace body (1). A stepper motor (12) is provided at the upper end of the screw (5). An exhaust duct (13) is welded to the middle of the upper end of the furnace body (1). An exhaust fan (14) is provided inside the exhaust duct (13). A movable cover (15) is provided at the upper end of the exhaust duct (13). Support rods (16) are provided on both sides of the upper end of the exhaust duct (13). The support rods (16) pass through the movable cover (15). A top plate (17) is provided at the upper end of the support rods (16). An electromagnet (18) is provided at the middle of the lower end of the top plate (17).

2. The zoned heating structure of a high-purity nitrogen vertical curing oven according to claim 1, characterized in that: The lead screw (5) is connected to the lifting plate (4) by a thread, the slide rod (6) is slidably connected to the lifting plate (4) by the sliding sleeve, the limiting plate (7) located on the upper part of the slide rod (6) is connected to the top of the furnace body (1) by bolts, and the limiting plate (7) located on the lower part of the slide rod (6) is connected to the bottom of the furnace body (1) by bolts.

3. The zoned heating structure of a high-purity nitrogen vertical curing oven according to claim 1, characterized in that: The stepper motor (12) is bolted to the upper end of the furnace body (1), the transmission output end of the stepper motor (12) is connected to the upper end of the lead screw (5) via a coupling, the lead screw (5) is connected to the middle part of the second connecting seat (9) via a bearing, and the first connecting seat (8) is bolted to the inner bottom end of the furnace body (1).

4. The zoned heating structure of a high-purity nitrogen vertical curing oven according to claim 1, characterized in that: The electric heating plate (10) consists of five groups, each group is arranged opposite to each other and is equidistantly arranged at different heights on the inner wall of the furnace body (1). The connecting pipe (11) is welded to the side wall of the furnace body (1).

5. The zoned heating structure of a high-purity nitrogen vertical curing oven according to claim 1, characterized in that: The exhaust fan (14) is bolted to the inner wall of the exhaust duct (13), the lower end of the movable cover (15) overlaps with the lower end of the exhaust duct (13), and the support rod (16) is slidably connected to the movable cover (15).

6. The zoned heating structure of a high-purity nitrogen vertical curing oven according to claim 1, characterized in that: The lower end of the support rod (16) is connected to the upper end of the exhaust duct (13) by a thread, the upper end of the support rod (16) is connected to the lower end of the top plate (17) by a screw, and the electromagnet (18) is connected to the middle of the lower end of the top plate (17) by a bolt.

Images