Furnace temperature control device of nitriding treatment preheating drying furnace

Abstract

The utility model relates to the field of furnace temperature control devices, in particular to a furnace temperature control device of a nitriding treatment preheating drying furnace, which is characterized in that a furnace temperature controller component is fixedly arranged on a preheating drying furnace body, and an upper fixing plate and a lower fixing plate are respectively and fixedly arranged on the upper side and the lower side of the furnace temperature controller component on the preheating drying furnace body; a protective cover is movably arranged on the outer side of the furnace temperature controller assembly; movable clamping blocks are movably arranged on the two sides of the upper fixing plate, clamping pieces are fixedly arranged at the bottoms of the movable clamping blocks, and clamping cavities are formed in the positions, corresponding to the clamping pieces, of the top of the protective cover in a matched mode. According to the preheating and drying furnace, preheating and drying of workpieces can be achieved through the preheating and drying furnace body, the temperature in the furnace can be controlled through the furnace temperature controller assembly, dust accumulation caused by long-term exposure of the furnace temperature controller assembly to the outside can be prevented through the arrangement of the protective cover, and the protective structure of the furnace temperature controller assembly is simple. The operation is convenient, and the use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of furnace temperature control devices, in particular to a furnace temperature control device for a nitriding treatment preheating and drying furnace. Background Art

[0002] The nitriding preheating and drying furnace is a crucial equipment in the heat treatment process. It is mainly used to preheat and dry the workpiece before nitriding to ensure the quality and effect of the nitriding treatment. The furnace temperature controller is a panel that controls the preheating and drying temperature in the furnace.

[0003] In the "A Sintering Furnace Temperature Control Device" disclosed in the authorization announcement number "CN 221198081 U", the furnace temperature controller can be adjusted to the inside of the protective shell for protection through the cooperation between the driving motor, gear and rack, so as to prevent the furnace temperature controller from being exposed to the outside for a long time and accumulating a large amount of dust.

[0004] However, in actual use, it is found that the protection structure of the furnace temperature controller is relatively complex and the operation is relatively cumbersome, which is not conducive to user use. Therefore, there is an urgent need for a furnace temperature controller with a simple protection structure and easy operation. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings in the prior art and to propose a temperature control device for a nitriding preheating and drying furnace.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A furnace temperature control device for a nitriding treatment preheating and drying furnace comprises a preheating and drying furnace body, on which a furnace temperature controller assembly is fixedly arranged, an upper fixed plate and a lower fixed plate are fixedly arranged on the upper and lower sides of the preheating and drying furnace body, respectively, and a protective cover is movably arranged on the outer side of the furnace temperature controller assembly; movable clamping blocks are movably arranged on both sides of the upper fixed plate, clamping pieces are fixedly arranged on the bottom of the movable clamping blocks, and clamping cavities are adapted to be opened on the top of the protective cover corresponding to the clamping pieces.

[0008] In addition, a preferred structure is that a plurality of second guide columns are vertically fixed upward on both sides of the lower fixed plate, and the other ends of the second guide columns are connected to the upper fixed plate.

[0009] In addition, a preferred structure is that second guide cavities are adapted to correspond to the second guide pillars on both sides of the protective cover, and the protective cover is guided and moved by the second guide pillars.

[0010] In addition, the preferred structure is that multiple first guide columns are fixed vertically outward on both sides of the upper fixed plate, a first guide cavity is adapted to correspond to the first guide columns on the movable block, and the movable block is guided and moved by the first guide columns.

[0011] In addition, a preferred structure is that a plurality of spring cavities are opened inwardly on both sides of the upper fixed plate corresponding to the movable blocks, springs are installed outwardly in the spring cavities, and the other ends of the springs are connected to the movable blocks.

[0012] In addition, a preferred structure is that a clamping piece is fixedly provided at the bottom of each movable clamping block, and the bottom of the clamping piece is an inclined surface and the top is a flat surface.

[0013] The beneficial effects of the utility model are as follows: the preheating and drying of the workpiece can be achieved by preheating the drying furnace body, the temperature inside the furnace can be controlled by the furnace temperature controller assembly, and the setting of the protective cover can prevent the furnace temperature controller assembly from accumulating dust due to long-term exposure to the outside world. The protective structure of this furnace temperature controller assembly is relatively simple, easy to operate, and convenient for users to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of the temperature control device for the nitriding preheating and drying furnace proposed in the present invention;

[0015] Figure 2 for Figure 1 An enlarged detail of the furnace temperature controller assembly;

[0016] Figure 3 for Figure 2 Schematic diagram of the structure when the protective cover moves downward;

[0017] Figure 4 This is a schematic diagram of the back structure of the protective cover of the temperature control device of the nitriding treatment preheating and drying furnace proposed by the present invention;

[0018] Figure 5 This is a structural diagram of the upper fixed plate, lower fixed plate and movable block of the temperature control device of the nitriding treatment preheating and drying furnace proposed by the present invention;

[0019] Figure 6 for Figure 5 Schematic diagram of the explosion structure at the active block in the figure;

[0020] Figure 7 This is a structural schematic diagram of the movable card block of the temperature control device of the nitriding treatment preheating and drying furnace proposed by the utility model.

[0021] In the figure: 1 preheating and drying furnace body, 11 furnace temperature controller assembly, 2 upper fixed plate, 20 spring cavity, 201 spring, 202 first guide column, 21 lower fixed plate, 22 second guide column, 3 protective cover, 31 card cavity, 32 second guide cavity, 4 movable card block, 41 first guide cavity, 42 card part. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely 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 the embodiments.

[0023] Reference Figure 1-7 The temperature control device for a nitriding preheating and drying furnace includes a preheating and drying furnace body 1, on which a furnace temperature controller assembly 11 is fixedly mounted. An upper fixing plate 2 and a lower fixing plate 21 are fixedly mounted on the upper and lower sides of the preheating and drying furnace body 1, respectively. A protective cover 3 is movably mounted on the outer side of the furnace temperature controller assembly 11. Movable clamping blocks 4 are movably mounted on both sides of the upper fixing plate 2. Clamping members 42 are fixedly mounted on the bottoms of the movable clamping blocks 4. A clamping cavity 31 is formed on the top of the protective cover 3 to accommodate the clamping members 42.

[0024] The principles of the furnace temperature controller assembly 11 involve temperature detection, signal processing, and control output. It uses a temperature-sensing element, such as a thermocouple or thermistor, to monitor the temperature within the furnace. The resulting weak analog signal is amplified, filtered, and transformed, converting it into a control signal. A control device, such as a proportional controller, a proportional-integral controller, or a proportional-integral-differential controller, then adjusts the furnace's heating power based on the signal, thereby achieving precise control of the furnace's temperature. It is worth noting that the specific temperature control structure and operating principles of the preheating and drying furnace body 1 and the furnace temperature controller assembly 11 are prior art and therefore will not be elaborated upon.

[0025] Multiple second guide posts 22 are vertically fixed upward on both sides of the lower fixing plate 21, and the other ends of the second guide posts 22 are connected to the upper fixing plate 2. Second guide cavities 32 are provided on both sides of the protective cover 3, corresponding to the second guide posts 22, and the protective cover 3 is guided by the second guide posts 22. The second guide posts 22 control the movement of the protective cover 3 between the upper fixing plate 2 and the lower fixing plate 21.

[0026] A plurality of first guide posts 202 are fixedly and vertically disposed outwardly on both sides of the upper fixed plate 2. A first guide cavity 41 is adapted to fit the first guide posts 202, and the movable block 4 is guided by the first guide posts 202. Anti-dropout members are fixedly disposed at the ends of the first guide posts 202, and anti-dropout cavities are adapted to fit the anti-dropout members in the first guide cavities 41, thereby preventing the movable block 4 from falling off the first guide posts 202.

[0027] Among them, multiple spring cavities 20 are opened inwardly on both sides of the upper fixed plate 2 corresponding to the movable block 4, and springs 201 are installed outwardly in the spring cavities 20, and the other ends of the springs 201 are connected to the movable block 4. Through the arrangement of the springs 201, the movable block 4 can be pulled toward the spring cavity 20.

[0028] The bottom of the movable block 4 is fixedly provided with a clamping member 42 , and the bottom of the clamping member 42 is an inclined surface and the top is a flat surface.

[0029] In this embodiment, the workpiece can be preheated and dried by preheating the drying furnace body 1, and the temperature inside the furnace can be controlled by the furnace temperature controller assembly 11. This is all prior art, so it will not be described in detail.

[0030] When the user needs to use the oven temperature controller assembly 11, he only needs to push the protective cover 3 upward. When the locking cavity 31 on the protective cover 3 contacts the locking member 42 on the movable block 4, the locking member 42 moves outward due to the slope at its bottom. At this time, the spring 201 in the spring cavity 20 is stretched, so that when the protective cover 3 moves upward, the locking member 42 can enter the locking cavity 31.

[0031] When the clamping member 42 is completely inserted into the clamping cavity 31, the flat surface of the top of the clamping member 42 is locked in the clamping cavity 31, and the movable clamping block 4 can be automatically reset by the elastic force of the spring 201. In this way, the locking between the clamping member 42 and the clamping cavity 31 can prevent the protective cover 3 located above from falling downward, and the user can now operate the oven temperature controller assembly 11.

[0032] Furthermore, after the user has completed operating the oven temperature controller assembly 11, they simply pull the movable clamping blocks 4 on both sides outward, causing the clamping members 42 to move outward again. This releases the clamping member 42 from the clamping cavity 31, and the protective cover 3 automatically drops down under gravity and moves to the outside of the oven temperature controller assembly 11. The protective cover 3 now protects the oven temperature controller assembly 11, preventing dust accumulation due to long-term exposure to the outside world.

[0033] In the present invention, the preheating and drying of the workpiece can be achieved by preheating the drying furnace body 1, the temperature inside the furnace can be controlled by the furnace temperature controller assembly 11, and the setting of the protective cover 3 can prevent the furnace temperature controller assembly 11 from accumulating dust due to long-term exposure to the outside world. This protective structure for the furnace temperature controller assembly 11 is relatively simple, easy to operate, and convenient for users to use.

[0034] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A temperature control device for a preheating and drying furnace for nitriding treatment, comprising a preheating and drying furnace body (1), characterized in that: A furnace temperature controller assembly (11) is fixedly provided on the preheating and drying furnace body (1); an upper fixing plate (2) and a lower fixing plate (21) are fixedly provided on the upper and lower sides of the furnace temperature controller assembly (11) on the preheating and drying furnace body (1), respectively; and a protective cover (3) is movably provided on the outer side of the furnace temperature controller assembly (11); Both sides of the upper fixed plate (2) are movably provided with movable clamping blocks (4), the bottoms of the movable clamping blocks (4) are fixedly provided with clamping pieces (42), and the top of the protective cover (3) is adapted to be provided with clamping cavities (31) corresponding to the clamping pieces (42).

2. The temperature control device for a nitriding preheating and drying furnace according to claim 1, characterized in that: A plurality of second guide columns (22) are vertically and upwardly fixedly provided on both sides of the lower fixed plate (21), and the other ends of the second guide columns (22) are connected to the upper fixed plate (2).

3. The temperature control device for a nitriding preheating and drying furnace according to claim 2, characterized in that: Second guide cavities (32) are adapted to be opened on both sides of the protective cover (3) corresponding to the second guide columns (22), and the protective cover (3) is guided and moved by the second guide columns (22).

4. The temperature control device for a nitriding preheating and drying furnace according to claim 3, characterized in that: A plurality of first guide columns (202) are fixedly and vertically arranged outward on both sides of the upper fixed plate (2); a first guide cavity (41) is adapted to be opened on the movable block (4) corresponding to the first guide columns (202); and the movable block (4) is guided and moved by the first guide columns (202).

5. The temperature control device for a nitriding preheating and drying furnace according to claim 4, characterized in that: A plurality of spring cavities (20) are provided inwardly on both sides of the upper fixed plate (2) corresponding to the movable clamping block (4), and springs (201) are installed outwardly in the spring cavities (20), and the other ends of the springs (201) are connected to the movable clamping block (4).

6. The temperature control device for a nitriding preheating and drying furnace according to claim 5, characterized in that: A clamping piece (42) is fixedly provided at the bottom of each movable clamping block (4), and the bottom of the clamping piece (42) is an inclined surface, and the top is a flat surface.

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