Horizontal anaerobic vacuum annealing furnace

Abstract

The utility model provides a horizontal anaerobic vacuum annealing furnace which comprises a numerical control box, the right side of the numerical control box is fixedly connected with a nitrogen pipe, the top of the nitrogen pipe is fixedly connected with a furnace body, the bottom of the furnace body is fixedly connected with a supporting frame, and the right side of the furnace body is rotationally connected with a rotating frame. The rear side of the rotating frame is fixedly connected with an oven cover, the right side of the oven body is provided with a limiting assembly for fixing the rotating frame, two sliding grooves are fixedly connected into the oven body, the interiors of the two sliding grooves are slidably connected with a storage plate, and the bottom of the storage plate is fixedly connected with a connecting plate; the bottom of the connecting plate is rotationally connected with a first rotating plate. According to the utility model, the rotating ring is pulled to move through the rotating plate II, so that the clamping hook and the metal sealing strip in the furnace cover are pulled to extrude, the sealing effect is improved, the subsequent rotation of the furnace cover drives the internal storage plate to automatically slide out, and the blanking safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum annealing furnaces, in particular to a horizontal oxygen-free vacuum annealing furnace. Background Art

[0002] A horizontal oxygen-free vacuum annealing furnace is a specialized device used for annealing metal materials. It typically utilizes a horizontal structure to create an oxygen-free vacuum environment, heating, insulating, and cooling the metal material to eliminate internal stress, improve material properties, and enhance material quality.

[0003] Chinese patent CN221192210U discloses a horizontal vacuum annealing furnace, which is inserted into a slot by aligning an activated carbon filter plate with the activated carbon filter plate. During the insertion process, the bottom of the activated carbon filter plate applies pressure to the inclined surface of the first rubber sealing seat, and the side surface of the activated carbon filter plate applies pressure to the second rubber sealing seat. At the same time, the third rubber sealing seat is inserted into the interior of the sealing slot. By applying pressure to the first rubber sealing seat, the second rubber sealing seat and the third rubber sealing seat, the first rubber sealing seat, the second rubber sealing seat and the third rubber sealing seat are tightly attached to the activated carbon filter plate, thereby sealing the gap between the activated carbon filter plate and the processing box. At the same time, the exhaust fan extracts exhaust gas from the interior of the horizontal vacuum annealing furnace body, so that the exhaust gas is adsorbed and purified when passing through the activated carbon filter plate, which can make the air contact with the activated carbon filter plate more sufficient, thereby making the effect of filtering harmful gases in the air better.

[0004] However, in this technical solution, the temperature inside the furnace body is high after the processing is completed, and it is very dangerous for the construction workers to operate and unload the materials. Therefore, a horizontal oxygen-free vacuum annealing furnace is proposed to solve the above problem. Utility Model Content

[0005] The purpose of the utility model is to address the deficiencies of the existing technology and provide a horizontal oxygen-free vacuum annealing furnace, which drives the rotating plate to produce relative movement by rotating the furnace cover, thereby pulling the storage plate to slide automatically out of the furnace body, preventing construction personnel from entering the furnace body to unload materials, and improving safety.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A horizontal oxygen-free vacuum annealing furnace comprises a CNC box, wherein the right side of the CNC box is fixedly connected to a nitrogen pipe, the top of the nitrogen pipe is fixedly connected to a furnace body, the bottom of the furnace body is fixedly connected to a support frame, the right side of the furnace body is rotatably connected to a rotating frame, the rear side of the rotating frame is fixedly connected to a furnace cover, a limiting assembly for fixing the rotating frame is provided on the right side of the furnace body, two slide grooves are fixedly connected to the interior of the furnace body, a storage plate is slidably connected to the interior of the two slide grooves, the bottom of the storage plate is fixedly connected to a connecting plate, the bottom of the connecting plate is rotatably connected to a rotating plate 1, a fixing rod is fixedly connected to the interior of the furnace body, the outer sleeve of the fixing rod is provided with a spring, and a sealing assembly for sealing the furnace cover is provided on the left side of the furnace body.

[0008] As a further description of the above technical solution:

[0009] One end of the spring is fixedly connected to the rear side of the storage plate, and the other end of the spring is fixedly connected to the inner rear side of the furnace body.

[0010] As a further description of the above technical solution:

[0011] A front side of the rotating plate is rotatably connected to the rear side of the furnace cover, and the interior of the storage plate is slidably connected to the exterior of the fixing rod.

[0012] As a further description of the above technical solution:

[0013] The limiting assembly includes a fixing plate and a draw hook. The left side of the fixing plate is fixedly connected to the right side of the furnace body, and the outer side of the draw hook contacts the inner side of the fixing plate.

[0014] As a further description of the above technical solution:

[0015] A pull ring is fixedly connected to the right side of the rotating frame, and the outer portion of the draw hook is engaged with the inner portion of the pull ring.

[0016] As a further description of the above technical solution:

[0017] The sealing assembly includes a metal sealing strip and a hook. The front side of the metal sealing strip is fixedly connected to the rear side of the furnace cover, and the rear side of the hook is fixedly connected to the front side of the furnace cover.

[0018] As a further description of the above technical solution:

[0019] The left side of the furnace body is fixedly connected with a fixing frame, the interior of the fixing frame is rotatably connected with a rotating plate 2, the interior of the rotating plate 2 is rotatably connected with a rotating ring, and the interior of the rotating plate 2 is threadedly connected with a bolt.

[0020] As a further description of the above technical solution:

[0021] The outer portion of the rotating ring is engaged with the inner portion of the hook, and the right side of the bolt is connected to the interior of the furnace body.

[0022] The beneficial effects of the present invention are:

[0023] (1) The utility model rotates the rotating plate 2 and the rotating ring so that the rotating ring engages with the inner part of the hook, and then moves the bolt toward the internal thread of the furnace body, driving the rotating plate 2 to rotate in the opposite direction, so that the rotating ring pulls the hook to move backward, driving the metal sealing strip inside the furnace cover to squeeze with the furnace body to improve the sealing effect, reduce nitrogen leakage, and improve the annealing quality of the product.

[0024] (2) The utility model drives the furnace cover to rotate and open by rotating the rotating frame, pulls the rotating plate to generate movement, further pulls the connecting plate and the storage plate to slide forward, automatically slides out the products processed inside, completes unloading, reduces the cost of manual entry for unloading, and improves the safety of unloading.

[0025] In summary, the utility model has the advantages of safer material feeding and better sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a three-dimensional diagram of a horizontal oxygen-free vacuum annealing furnace proposed by the utility model;

[0027] Figure 2 This is a schematic diagram of the furnace structure of a horizontal oxygen-free vacuum annealing furnace proposed in the utility model;

[0028] Figure 3 This is a schematic diagram of the structure of a storage plate of a horizontal oxygen-free vacuum annealing furnace proposed by the utility model;

[0029] Figure 4 for Figure 1 Enlarged view of point A in the middle;

[0030] Figure 5 The utility model is a schematic diagram of a draw hook structure of a horizontal oxygen-free vacuum annealing furnace. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0033] Example 1

[0034] Reference Figure 1 The present invention provides an embodiment of a horizontal oxygen-free vacuum annealing furnace, comprising a CNC box 1, the exterior of which is made of a sturdy iron sheet metal. Internal circuitry provides precise digital control of the annealing furnace. The internal circuitry and control system allow the annealing furnace's parameters, such as temperature, time, and vacuum level, to be set and adjusted. A display screen and operation buttons are provided on the surface of the CNC box 1, making it convenient for the operator to set parameters and monitor the annealing process. A nitrogen pipe 2 is fixedly connected to the right side of the CNC box 1. This cylindrical pipe is made of corrosion-resistant stainless steel. It supplies nitrogen to the annealing furnace, creating an oxygen-free environment. A furnace body 3 is fixedly connected to the top of the nitrogen pipe 2. This horizontal cylindrical container provides a sealed space for annealing metals, capable of withstanding high temperatures and vacuum conditions. A support frame 4 is fixedly connected to the bottom of the furnace body 3. The support frame 4 is generally made of metal and has a frame structure. This frame provides stable support for the furnace body 3, ensuring that the annealing furnace does not shake or tilt during operation. The right side of the furnace body 3 is rotatably connected to a rotating frame 5, the main function of which is to connect the subsequent structure and realize the rotation opening and closing operation of the subsequent structure. The rear side of the rotating frame 5 is fixedly connected to a furnace cover 6, the main function of the furnace cover 6 is to cooperate with the furnace body 3 to form a sealed annealing space. A handle is fixedly connected to the outside of the furnace cover 6 to facilitate the rotation operation of the construction personnel. A limiting component for fixing the rotating frame 5 is provided on the right side of the furnace body 3.

[0035] Reference Figures 2 to 3The interior of the furnace body 3 is fixedly connected to two slide grooves 8, which provide a basis for the sliding of subsequent structures. The internal sliding connection of the two slide grooves 8 is provided with a storage plate 9, whose main function is to place the metal workpiece to be annealed, so as to facilitate the delivery of the workpiece into and out of the furnace body 3. The bottom of the storage plate 9 is fixedly connected to a connecting plate 10, and the bottom of the connecting plate 10 is rotatably connected to a rotating plate 11. The function of the rotating plate 11 is to connect the storage plate 9 and the rotating plate 11, and transmit the movement of the rotating plate 11 to the storage plate 9, so as to realize the in and out operation of the storage plate 9. The interior of the furnace body 3 is fixedly connected to a fixing rod 12, which provides internal support for the subsequent elastic structure to prevent deformation. The outer sleeve of the fixing rod 12 is provided with a spring 13, which provides a reaction force. After the furnace cover 6 is opened again, the limit assembly can be automatically closed by releasing the limit assembly. A sealing assembly for sealing the furnace cover 6 is provided on the left side of the furnace body 3.

[0036] Reference Figure 2 One end of the spring 13 is fixedly connected to the rear side of the placement plate 9, and the other end of the spring 13 is fixedly connected to the inner rear side of the furnace body 3. The fixation of the two ends of the spring 13 ensures that the placement plate 9 generates a reset force after sliding. The front side of the rotating plate 11 is rotatably connected to the rear side of the furnace cover 6, and the rotating plate 11 is connected through the furnace cover 6, which in turn drives the placement plate 9 to slide. The inner sliding part of the placement plate 9 is connected to the outside of the fixed rod 12.

[0037] Reference Figure 5 The limiting assembly includes a fixed plate 20 and a hook 21. The fixed plate 20 is made of a high-temperature resistant alloy. The left side of the fixed plate 20 is fixedly connected to the right side of the furnace body 3. The outside of the hook 21 is in contact with the inside of the fixed plate 20. The hook 21 can slide and rotate inside the fixed plate 20. To adjust the position of the hook 21, a pull ring 19 is fixedly connected to the right side of the rotating frame 5. The outside of the hook 21 is engaged with the inside of the pull ring 19. After the hook 21 is rotated, it slides downward into the inside of the pull ring 19, limiting the rotation of the rotating frame 5 and preventing the automatic retraction of the storage plate 9, making it convenient for unloading operations.

[0038] Reference Figure 1 , Figure 2 and Figure 4The sealing assembly includes a metal sealing strip 7 and a hook 14. The front side of the metal sealing strip 7 is fixedly connected to the rear side of the furnace cover 6. The metal sealing strip 7 is usually made of a high-temperature resistant and corrosion-resistant metal material and is in the shape of a long strip. The left side of the furnace body 3 is fixedly connected with a fixing frame 15, and the fixing frame 15 is usually made of alloy metal material. The main function is to provide a basis for installation and rotation fulcrum of the subsequent structure. The internal rotation of the fixing frame 15 is connected with a rotating plate 2 16, and the rotating plate 2 16 is plate-shaped. The internal rotation of the rotating plate 2 16 is connected with a rotating ring 17, and the rotating ring 17 is a ring-shaped metal. When the rotating plate 2 16 rotates, relative movement is generated, and the hook 14 is pulled to generate pressure. The internal thread of the rotating plate 2 16 is connected with a bolt 18. The outer side of the rotating ring 17 is engaged with the inner side of the hook 14. The rotating ring 17 pulls the hook 14 to move backward, thereby increasing the extrusion force, reducing the gap of the metal sealing ring, and improving the sealing. The right side of the bolt 18 is connected to the interior of the furnace body 3, and the rotation of the rotating plate 2 16 is controlled by the rotation of the bolt 18.

[0039] Working steps

[0040] Step 1: First, place the metal to be processed inside the furnace body 3, rotate the rotating frame 5 to close the furnace cover 6, then rotate the rotating plate 2 16 and the rotating ring 17 so that the rotating ring 17 engages with the inside of the hook 14, and finally, through the bolt 18, moves toward the internal thread of the furnace body 3, driving the rotating plate 2 16 to rotate in the opposite direction, so that the rotating ring 17 pulls the hook 14 to move backward, driving the metal sealing strip 7 inside the furnace cover 6 to produce an extrusion effect with the furnace body 3, improving the sealing effect, start the switch of the CNC box 1, and use the nitrogen pipe 2 to inject nitrogen into the interior of the furnace body 3 for heating and annealing, reducing nitrogen leakage and ensuring the stability of the furnace environment during the heating and annealing process. The extrusion effect of the metal sealing strip 7 and the furnace body 3 greatly improves the sealing performance and effectively prevents nitrogen leakage, thereby ensuring that the annealing process is carried out in an oxygen-free or low-oxygen environment, avoiding metal oxidation and improving product quality.

[0041] Step 2. Secondly, after the heating is completed, the above-mentioned sealing mechanism is first released, and the furnace cover 6 is driven to rotate and open by rotating the rotating frame 5, thereby pulling the rotating plate 11 to move, and further pulling the connecting plate 10 and the storage plate 9 to slide forward. The sliding of the storage plate 9 can automatically slide out the products processed inside to complete the unloading. At the same time, it slides outside the fixed rod 12, and the stretch spring 13 generates elastic force to move in the opposite direction, automatically closing the furnace cover 6, and then slide the hook 21 upward and rotate it to clamp it inside the pull ring 19 to complete the limit. The sliding of the storage plate 9 can automatically slide out the products processed inside, which greatly saves labor costs and improves the speed and safety of unloading.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A horizontal oxygen-free vacuum annealing furnace, including a numerical control box, characterized in that: The right side of the CNC box is fixedly connected to a nitrogen pipe, the top of the nitrogen pipe is fixedly connected to the furnace body, the bottom of the furnace body is fixedly connected to a support frame, the right side of the furnace body is rotatably connected to a rotating frame, the rear side of the rotating frame is fixedly connected to a furnace cover, and a limiting assembly for fixing the rotating frame is provided on the right side of the furnace body, two slide grooves are fixedly connected to the interior of the furnace body, and a storage plate is slidably connected to the interior of the two slide grooves, the bottom of the storage plate is fixedly connected to a connecting plate, and the bottom of the connecting plate is rotatably connected to a rotating plate 1, the interior of the furnace body is fixedly connected to a fixing rod, the outer sleeve of the fixing rod is provided with a spring, and a sealing assembly for sealing the furnace cover is provided on the left side of the furnace body.

2. A horizontal oxygen-free vacuum annealing furnace according to claim 1, characterized in that: One end of the spring is fixedly connected to the rear side of the storage plate, and the other end of the spring is fixedly connected to the inner rear side of the furnace body.

3. The horizontal oxygen-free vacuum annealing furnace according to claim 1, characterized in that: A front side of the rotating plate is rotatably connected to the rear side of the furnace cover, and the interior of the storage plate is slidably connected to the exterior of the fixing rod.

4. The horizontal oxygen-free vacuum annealing furnace according to claim 1, characterized in that: The limiting assembly includes a fixing plate and a draw hook. The left side of the fixing plate is fixedly connected to the right side of the furnace body, and the outer side of the draw hook contacts the inner side of the fixing plate.

5. The horizontal oxygen-free vacuum annealing furnace according to claim 4, characterized in that: A pull ring is fixedly connected to the right side of the rotating frame, and the outer portion of the draw hook is engaged with the inner portion of the pull ring.

6. The horizontal oxygen-free vacuum annealing furnace according to claim 1, characterized in that: The sealing assembly includes a metal sealing strip and a hook. The front side of the metal sealing strip is fixedly connected to the rear side of the furnace cover, and the rear side of the hook is fixedly connected to the front side of the furnace cover.

7. The horizontal oxygen-free vacuum annealing furnace according to claim 6, characterized in that: The left side of the furnace body is fixedly connected with a fixing frame, the interior of the fixing frame is rotatably connected with a rotating plate 2, the interior of the rotating plate 2 is rotatably connected with a rotating ring, and the interior of the rotating plate 2 is threadedly connected with a bolt.

8. The horizontal oxygen-free vacuum annealing furnace according to claim 7, characterized in that: The outer portion of the rotating ring is engaged with the inner portion of the hook, and the right side of the bolt is connected to the interior of the furnace body.

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