Hot air circulation type high-strength low-temperature tempering furnace

Abstract

The utility model relates to the technical field of low-temperature tempering furnaces, and discloses a hot air circulation type high-strength low-temperature tempering furnace which comprises a tempering furnace body, two sets of sliding blocks are connected to the inner wall of the tempering furnace body in a sliding mode, and lifting assemblies are connected to the interiors of the two sets of sliding blocks in a threaded mode. Rotating shafts are rotatably connected to the interiors of one sides of the two sets of sliding blocks, a driving motor is fixedly connected to one end of one rotating shaft, a box door is hinged to one side of the tempering furnace body through a hinge, an inner frame is fixedly connected to one side of the box door, and four sets of sealing assemblies are slidably connected to the interiors of the periphery of the inner frame; the lifting assembly comprises a threaded lead screw which is in threaded connection with the interior of the sliding block. According to the hot air circulation type high-strength low-temperature tempering furnace, through the arrangement of the lifting assembly and the rotating shaft, the effect of turning over and lifting a workpiece is achieved, it is ensured that all parts are evenly heated, local overheating or underheating is avoided, meanwhile, the treatment efficiency is improved, and the tempering time is shortened.

Description

Technical Field

[0001] This utility model relates to the field of low-temperature tempering furnace technology, and in particular to a hot air circulating high-intensity low-temperature tempering furnace. Background Technology

[0002] A hot-blast circulating high-strength low-temperature tempering furnace is a device used for the heat treatment of metallic materials, particularly in applications requiring low-temperature tempering. This furnace effectively controls the furnace temperature through a hot-blast circulating system, ensuring uniform heating of the material and maintaining consistent temperature during tempering, thereby optimizing the material's mechanical properties. Hot-blast circulating high-strength low-temperature tempering furnaces are widely used in the heat treatment of steel, alloys, tool steel, automotive parts, and other metallic materials, especially where maintaining high strength without excessive hardening is crucial. It is particularly suitable for tempering processes requiring precise temperature control and uniform heating.

[0003] However, existing hot air circulating high-intensity low-temperature tempering furnaces are difficult to use for workpiece rotation and lifting, resulting in local overheating or underheating, uneven heating of parts, reduced processing efficiency, and increased tempering time. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] The purpose of this utility model is to provide a hot air circulation type high-intensity low-temperature tempering furnace, which solves the problem mentioned in the background art that the existing hot air circulation type high-intensity low-temperature tempering furnace is difficult to rotate and lift the workpiece during use, resulting in local overheating or underheating, uneven heating of parts, reduced processing efficiency, and increased tempering time.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a hot air circulating high-intensity low-temperature tempering furnace, comprising a tempering furnace body, two sets of sliding blocks slidably connected to the inner wall of the tempering furnace body, each set of sliding blocks having a lifting assembly threadedly connected inside, a rotating shaft rotatably connected to one side of each set of sliding blocks, one end of one set of rotating shafts being fixedly connected to a drive motor, a door hinged to one side of the tempering furnace body, an inner frame fixedly connected to one side of the door, four sets of sealing assemblies slidably connected to the inner frame around its perimeter, the lifting assembly including a threaded screw threadedly connected to the inside of the sliding block, an output motor fixedly connected to the top of the threaded screw; the sealing assembly including a sealing strip slidably connected to the inner frame around its perimeter, several sets of support springs fixedly connected to one side of the sealing strip, a positioning rod sleeved inside the support spring.

[0008] As a further embodiment of this utility model, a support frame is fixedly connected to one end of the rotating shaft, and a bolt is threadedly connected to the top of the support frame. The bolt enables the shaft to rotate on the support frame and push the pressure plate.

[0009] As a further embodiment of this utility model, a nut is fixedly connected to the top of the bolt, and rotating rods are fixedly connected to both sides of the nut. The rotating rods facilitate the rotation of the nut.

[0010] As a further embodiment of this utility model, a pressure plate is rotatably connected to the bottom of the bolt, and a threaded hole adapted to the bolt is provided on the top of the support frame. The threaded hole facilitates the rotation of the bolt.

[0011] As a further embodiment of this utility model, a connecting frame is fixedly connected to the side of one end of the rotating shaft, and a support shell is sleeved on the surface of the output motor. The support shell is fixedly connected to the top of the tempering furnace body. The support shell serves to protect the output motor.

[0012] As a further embodiment of this utility model, a protective shell is fitted onto the surface of the drive motor, and the protective shell is fixedly connected to the surface of the sliding block. The protective shell serves to protect and support the drive motor.

[0013] As a further embodiment of this utility model, a handle is fixedly connected to one side of the box door, and a control box is fixedly connected to one side of the tempering furnace body. The setting of the control box facilitates adjustment and control.

[0014] (III) Beneficial Effects

[0015] This utility model provides a hot air circulating high-strength low-temperature tempering furnace, which has the following beneficial effects:

[0016] 1. This hot air circulating high-strength low-temperature tempering furnace, through the setting of lifting components and rotating shaft, allows the workpiece to be placed on both sides within the support frame during use. The bolts are then rotated, causing them to rotate within the threaded holes, which in turn drives the pressure plate downwards to clamp the workpiece. Simultaneously, during tempering, the drive motor rotates the rotating shaft, causing the workpiece to flip. Based on the furnace temperature, the output motor drives the threaded screw to rotate, which in turn moves the sliding block up and down, achieving the effect of flipping and lifting the workpiece. This ensures uniform heating of all parts, avoids localized overheating or underheating, improves processing efficiency, and shortens tempering time.

[0017] This hot air circulating high-strength low-temperature tempering furnace, through the setting of the sealing components, when the box door is closed during use, causes the slope of the sealing strip around the inner frame to press against the inner side of the door frame. In turn, the sealing strip slides in the groove on the inner frame and compresses the support spring. At the same time, the positioning rod slides in the sliding hole in the groove, causing the support spring to deform under force and generate elastic force, which in turn pushes the sealing strip against the inner side of the door frame, thereby increasing the sealing effect at the joint. When the temperature inside the furnace changes and causes the components to expand and contract, the spring can automatically compensate for the dimensional changes and maintain a constant sealing pressure. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the lifting assembly and rotating shaft structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the sealing assembly structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the support frame and bolt structure of this utility model.

[0023] In the diagram: 1. Tempering furnace body; 2. Sliding block; 3. Lifting assembly; 301. Threaded screw; 302. Output motor; 4. Rotating shaft; 5. Drive motor; 6. Box door; 7. Inner frame; 8. Sealing assembly; 801. Sealing strip; 802. Support spring; 803. Positioning rod; 9. Support frame; 10. Bolt; 11. Nut; 12. Rotating rod; 13. Pressure plate; 14. Connecting frame; 15. Support shell; 16. Protective shell; 17. Handle; 18. Control box. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the 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 scope of protection of the present utility model.

[0025] Please see Figures 1 to 5This utility model provides a technical solution: a hot air circulating high-strength low-temperature tempering furnace, including a tempering furnace body 1. Two sets of sliding blocks 2 are slidably connected to the inner wall of the tempering furnace body 1. Lifting components 3 are threadedly connected inside both sets of sliding blocks 2. Through the arrangement of the lifting components 3 and the rotating shaft 4, the workpiece can be flipped and lifted, ensuring uniform heating of all parts and avoiding localized overheating or underheating. This also improves processing efficiency and shortens tempering time. A rotating shaft 4 is rotatably connected inside one side of each set of sliding blocks 2. One end of one set of rotating shaft 4 is fixedly connected to a drive motor 5. A door 6 is hinged to one side of the tempering furnace body 1. One side of the door 6 is fixedly connected to... The inner frame 7 is fixedly connected, and four sets of sealing components 8 are slidably connected inside the inner frame 7. The sealing components 8 are designed to increase the sealing effect at the joints. When the temperature inside the furnace changes and the components expand and contract, the springs can automatically compensate for the size changes and maintain a constant sealing pressure. The lifting component 3 includes a threaded screw 301 threadedly connected inside the sliding block 2. The top of the threaded screw 301 is fixedly connected to an output motor 302. The sealing component 8 includes a sealing strip 801 slidably connected inside the inner frame 7. Several sets of support springs 802 are fixedly connected to one side of the sealing strip 801. A positioning rod 803 is sleeved inside the support spring 802.

[0026] One end of the rotating shaft 4 is fixedly connected to a support frame 9, and the top of the support frame 9 is threaded with a bolt 10. The bolt 10 serves to rotate on the support frame 9 and push the pressure plate 13.

[0027] A nut 11 is fixedly connected to the top of the bolt 10, and a rotating rod 12 is fixedly connected to both sides of the nut 11. The rotating rod 12 facilitates the rotation of the nut 11.

[0028] A pressure plate 13 is rotatably connected to the bottom of the bolt 10, and a threaded hole adapted to the bolt 10 is opened on the top of the support frame 9. The threaded hole facilitates the rotation of the bolt 10.

[0029] A connecting frame 14 is fixedly connected to the side of one end of the rotating shaft 4. A support shell 15 is sleeved on the surface of the output motor 302. The support shell 15 is fixedly connected to the top of the tempering furnace body 1. The support shell 15 serves to protect the output motor 302.

[0030] A protective shell 16 is fitted onto the surface of the drive motor 5. The protective shell 16 is fixedly connected to the surface of the sliding block 2. The protective shell 16 serves to protect and support the drive motor 5.

[0031] A handle 17 is fixedly connected to one side of the door 6, and a control box 18 is fixedly connected to one side of the tempering furnace body 1. The control box 18 facilitates adjustment and control.

[0032] In this invention, the working steps of the device are as follows:

[0033] First step: When using, place the workpiece on both sides inside the support frame 9, and then rotate the bolt 10 so that the bolt 10 rotates in the threaded hole, thereby driving the pressure plate 13 to move down to clamp the workpiece.

[0034] Second step: During the tempering process, the drive motor 5 drives the rotating shaft 4 to rotate, causing the workpiece to flip. At the same time, according to the temperature inside the furnace, the output motor 302 drives the threaded screw 301 to rotate, and drives the sliding block 2 to rise and fall.

[0035] The third step: During use, close the door 6, causing the slope of the sealing strip 801 around the inner frame 7 to press against the inner side of the door frame. This allows the sealing strip 801 to slide within the groove on the inner frame 7, compressing the support spring 802. Simultaneously, the positioning rod 803 slides within the sliding hole in the groove, causing the support spring 802 to deform under force and generate elastic force, which in turn pushes the sealing strip 801 against the inner side of the door frame. It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. The technical details of the device's power mechanism, power supply system, and control system are not fully described. However, those skilled in the art, understanding the principle of the above utility model, can clearly understand the specifics of its power mechanism, power supply system, and control system. The control method in the application document is automatic control via a controller, and the controller's control circuit can be implemented through simple programming by those skilled in the art.

[0036] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0037] 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 hot air circulating high-intensity low-temperature tempering furnace, comprising a tempering furnace body (1), characterized in that: The inner wall of the tempering furnace body (1) is slidably connected with two sets of sliding blocks (2). The interior of each set of sliding blocks (2) is threaded with a lifting component (3). The interior of one side of each set of sliding blocks (2) is rotatably connected with a rotating shaft (4). One end of one set of rotating shafts (4) is fixedly connected with a drive motor (5). The interior of the tempering furnace body (1) is hinged with a door (6). The interior of the door (6) is fixedly connected with an inner frame (7). The interior of the inner frame (7) is slidably connected with four sets of sealing components (8) around its perimeter. The lifting assembly (3) includes a threaded screw (301) threaded inside the sliding block (2), and an output motor (302) is fixedly connected to the top of the threaded screw (301). The sealing assembly (8) includes a sealing strip (801) that is slidably connected to the inside of the inner frame (7). A number of support springs (802) are fixedly connected to one side of the sealing strip (801), and a positioning rod (803) is sleeved inside the support spring (802).

2. The hot air circulating high-strength low-temperature tempering furnace according to claim 1, characterized in that: One end of the rotating shaft (4) is fixedly connected to a support frame (9), and the top of the support frame (9) is threaded with a bolt (10).

3. The hot air circulating high-strength low-temperature tempering furnace according to claim 2, characterized in that: The top of the bolt (10) is fixedly connected to a nut (11), and both sides of the nut (11) are fixedly connected to rotating rods (12).

4. A hot air circulating high-strength low-temperature tempering furnace according to claim 2, characterized in that: The bottom of the bolt (10) is rotatably connected to a pressure plate (13), and the top of the support frame (9) is provided with a threaded hole that matches the bolt (10).

5. A hot air circulating high-strength low-temperature tempering furnace according to claim 1, characterized in that: A connecting frame (14) is fixedly connected to the side of one end of the rotating shaft (4), and a support shell (15) is sleeved on the surface of the output motor (302). The support shell (15) is fixedly connected to the top of the tempering furnace body (1).

6. The hot air circulating high-strength low-temperature tempering furnace according to claim 1, characterized in that: The surface of the drive motor (5) is fitted with a protective shell (16), and the protective shell (16) is fixedly connected to the surface of the sliding block (2).

7. A hot air circulating high-strength low-temperature tempering furnace according to claim 1, characterized in that: A handle (17) is fixedly connected to one side of the box door (6), and a control box (18) is fixedly connected to one side of the tempering furnace body (1).

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