Box-type heating and holding furnace for heat treatment

Abstract

The utility model belongs to the field of heating and heat -preserving furnace, concretely is a kind of box type heating and heat -preserving furnace for heat treatment, including heat -preserving furnace main body, the inside of heat -preserving furnace main body is provided with heat -preserving cavity and feeding cavity, the feeding cavity is connected with heat -preserving cavity, the side of feeding cavity is rotatably installed with box door, the bottom of heat -preserving furnace main body is fixedly installed with base frame;When needing to carry out discharging work, first hydraulic cylinder drives bracket to move to feeding cavity, and after rack completely enters feeding cavity, support assembly drives baffle reset, to cut off heat -preserving cavity and feeding cavity by baffle, subsequent can carry out up and down material work by feeding cavity, cut off by baffle can effectively weaken the influence caused by external air to the temperature inside heat -preserving cavity, to avoid temperature fluctuation in heat -preserving cavity too big, to make the temperature in heat -preserving furnace can be quickly recovered, to avoid affecting the production efficiency of box type heating and heat -preserving furnace for heat treatment.

Description

Technical Field

[0001] This utility model relates to the field of heating and heat preservation furnaces, specifically a box-type heating and heat preservation furnace for heat treatment. Background Technology

[0002] Box-type heating and holding furnaces for heat treatment are core equipment in industrial heat treatment. They achieve microstructural transformation and performance optimization of materials such as metals and ceramics through precise temperature control. Their main functions include heating, holding, and cooling. They support various processes such as quenching, tempering, carburizing, and nitriding. Their role is to improve key properties of materials such as hardness, wear resistance, and corrosion resistance, meeting the needs of high-precision and high-performance materials in the automotive, aerospace, and electronics industries. They are a key tool for achieving uniform transformation of the internal structure of materials and optimizing mechanical properties.

[0003] In existing heat treatment box-type heating and holding furnaces, when the material basket is removed from the furnace, the furnace is opened, causing heat loss and unstable internal temperature. Therefore, the furnace cannot be used again until the temperature stabilizes, making it difficult to improve the productivity of the heat treatment box-type heating and holding furnace. Therefore, to address the above problems, a new type of heat treatment box-type heating and holding furnace is proposed. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, the existing box-type heating and holding furnace for heat treatment has a problem of unstable internal temperature due to heat loss caused by opening the furnace when the material basket is removed from the furnace. This utility model proposes a box-type heating and holding furnace for heat treatment.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a box-type heating and heat preservation furnace for heat treatment, including a heat preservation furnace body, an heat preservation cavity and a feeding cavity are provided inside the heat preservation furnace body, the feeding cavity is connected to the heat preservation cavity, a box door is rotatably installed on one side of the feeding cavity, a base frame is fixedly installed at the bottom of the heat preservation furnace body, and an adjustment mechanism is provided inside the base frame. The adjusting mechanism includes a first hydraulic cylinder, the telescopic end of which passes through the main body of the heat preservation furnace and is slidably connected to the inner cavity of the feeding chamber and the heat preservation chamber. A bracket is fixedly connected to the telescopic end of the first hydraulic cylinder, and a material rack is slidably sleeved inside the bracket. Two partitions are rotatably installed inside the feeding chamber. A support assembly is provided inside the feeding chamber, and the support assembly works in conjunction with the partitions. A pushing assembly is provided on the top of the main body of the heat preservation furnace, and the pushing assembly works in conjunction with the partitions.

[0006] Preferably, a limiting post is fixedly connected to the side of the bracket opposite to the feeding chamber, and one end of the limiting post penetrates through the main body of the heat preservation furnace and is slidably connected to the inner cavity of the main body of the heat preservation furnace.

[0007] Preferably, each of the two partitions has several arc-shaped grooves on its opposite side, and the arc-shaped grooves are used in conjunction with the telescopic end and the limiting post of the first hydraulic cylinder.

[0008] Preferably, the support assembly includes a groove formed inside the feeding cavity, a support rod fixedly installed inside the groove, a torsion spring rotatably sleeved on the surface of the support rod, one end of the torsion spring being fixedly connected to the inner wall of the groove, and the other end of the torsion spring being fixedly connected to the surface of the partition.

[0009] Preferably, the pushing component includes a second hydraulic cylinder, which is fixedly installed on the top of the heat preservation furnace body. The telescopic end of the second hydraulic cylinder passes through the heat preservation furnace body and is slidably connected to the inner cavity of the heat preservation chamber. A pusher is fixedly connected to the telescopic end of the second hydraulic cylinder, and the pusher is used in conjunction with the partition.

[0010] Preferably, the pusher has an installation groove on the side opposite to the partition, and a roller is rotatably installed inside the installation groove, the roller being used in conjunction with the partition.

[0011] Preferably, a limiting plate is fixedly connected inside the insulation cavity, and a limiting groove is formed on the side of the pusher opposite to the partition. The inner cavity of the limiting groove is slidably connected to the surface of the limiting plate.

[0012] The advantages of this utility model are: This invention, through the setting of an adjustment mechanism, allows the first hydraulic cylinder to move the bracket into the upper material chamber when material feeding is required. After the material rack is fully inserted into the feeding chamber, the support assembly drives the partition to reset, thus separating the insulation chamber from the feeding chamber. Subsequently, material feeding can be carried out through the feeding chamber. The partition effectively reduces the impact of external air on the temperature inside the insulation chamber, thereby avoiding excessive temperature fluctuations inside the insulation chamber and allowing the temperature inside the insulation furnace to recover quickly, thus avoiding affecting the production efficiency of the box-type heating and insulation furnace for heat treatment. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1This is a schematic diagram of the structure of the box-type heating and heat preservation furnace for heat treatment according to this utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the feeding chamber structure of this utility model; Figure 4 This is a schematic diagram of the partition structure of this utility model; Figure 5 This is a schematic diagram of the pushing component structure of this utility model.

[0015] In the diagram: 1. Main body of the insulation furnace; 101. Insulation chamber; 102. Feeding chamber; 103. Base frame; 104. Box door; 2. Adjustment mechanism; 21. First hydraulic cylinder; 22. Bracket; 2201. Limiting post; 23. Partition plate; 2301. Arc groove; 24. Support assembly; 2401. Groove; 2402. Support rod; 2403. Torsion spring; 25. Pushing assembly; 2501. Second hydraulic cylinder; 2502. Push frame; 2503. Mounting groove; 2504. Roller; 2505. Limiting plate; 2506. Limiting groove; 3. Material rack. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0017] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail. This application discloses a box-type heating and holding furnace for heat treatment. (Refer to...) Figure 1 , Figure 2 , Figure 3 and Figure 4 A box-type heating and holding furnace for heat treatment includes a furnace body 1. The furnace body 1 has an insulation cavity 101 and a feeding cavity 102 inside. The feeding cavity 102 is connected to the insulation cavity 101. A box door 104 is rotatably installed on one side of the feeding cavity 102. A base frame 103 is fixedly installed at the bottom of the furnace body 1. An adjustment mechanism 2 is provided inside the base frame 103. The furnace body 1 consists of a furnace body and insulation system, heating elements, temperature control and safety system, and auxiliary structures. It is used for heat treatment of workpieces and belongs to the prior art. It will not be described in detail here. The adjustment mechanism 2 includes a first hydraulic cylinder 21. The telescopic end of the first hydraulic cylinder 21 passes through the main body 1 of the heat preservation furnace and is slidably connected to the inner cavity of the feeding chamber 102 and the heat preservation chamber 101. The telescopic end of the first hydraulic cylinder 21 is fixedly connected to a bracket 22. A material rack 3 is slidably sleeved inside the bracket 22. Two partitions 23 are rotatably installed inside the feeding chamber 102. A support assembly 24 is provided inside the feeding chamber 102. The support assembly 24 works in conjunction with the partitions 23. A pushing assembly 25 is provided on the top of the main body 1 of the heat preservation furnace. The pushing assembly 25 works in conjunction with the partitions 23. When heat treatment of the workpiece is required, the chamber door 104 is opened and the workpiece rack 3 is placed in the bracket 22. Then, the chamber door 104 is closed, and the partition 23 is pushed by the pushing assembly 25 to make the partition 23 fit against the inner wall of the loading chamber 102. Then, the first hydraulic cylinder 21 drives the bracket 22 to move into the heat preservation chamber 101, so that the workpiece rack 3 is moved into the heat preservation chamber 101 via the bracket 22. Then, the pushing assembly 25 is reset. After losing the support of the pushing assembly 25, the partition 23 is reset by the support assembly 24, so that the heat preservation chamber 101 and the loading chamber 102 are separated by the partition 23. The workpiece can then undergo heat treatment in the insulation cavity 101. After the heat treatment is completed, the partition 23 is pushed by the pushing component 25, and then the bracket 22 is moved into the upper material cavity 102 by the first hydraulic cylinder 21. After the material rack 3 is fully inside the upper material cavity 102, the pushing component 25 is reset so that the partition 23 can once again separate the upper material cavity 102 and the insulation cavity 101. Then the loading and unloading operations can be carried out. The partition 23 can effectively reduce the influence of the outside air on the temperature inside the insulation cavity 101, thereby avoiding excessive temperature fluctuations inside the insulation cavity 101.

[0018] Reference Figure 3 and Figure 4 A limiting post 2201 is fixedly connected to the side of the bracket 22 opposite to the feeding chamber 102. One end of the limiting post 2201 penetrates through the main body of the heat preservation furnace 1 and is slidably connected to the inner cavity of the main body of the heat preservation furnace 1. By having one end of the limiting post 2201 penetrate through the main body of the heat preservation furnace 1 and is slidably connected to the inner cavity of the heat preservation furnace 1, the position of the bracket 22 is stabilized by the limiting post 2201, so as to avoid the position of the bracket 22 from shifting and affecting the position of the material rack 3.

[0019] Reference Figure 3 and Figure 4 Each of the two partitions 23 has several arc-shaped grooves 2301 on one side opposite to each other. The arc-shaped grooves 2301 are used in conjunction with the telescopic end and the limiting post 2201 of the first hydraulic cylinder 21. By opening the arc-shaped grooves 2301 on one side opposite to each other, the telescopic end and the limiting post 2201 of the first hydraulic cylinder 21 can be prevented from affecting the reset of the partition 23.

[0020] Reference Figure 2 The support assembly 24 includes a groove 2401, which is formed inside the feeding chamber 102. A support rod 2402 is fixedly installed inside the groove 2401. A torsion spring 2403 is rotatably sleeved on the surface of the support rod 2402. One end of the torsion spring 2403 is fixedly connected to the inner wall of the groove 2401, and the other end of the torsion spring 2403 is fixedly connected to the surface of the partition 23. The support rod 2402 supports the position of the torsion spring 2403, and the two ends of the torsion spring 2403 are fixedly connected to the inner wall of the groove 2401 and the surface of the partition 23, respectively, so that the torsion spring 2403 can support the position of the partition 23, so that the partition 23 can separate the insulation chamber 101 and the feeding chamber 102.

[0021] Reference Figure 3 and Figure 5 The pushing component 25 includes a second hydraulic cylinder 2501, which is fixedly installed on the top of the insulation furnace body 1. The telescopic end of the second hydraulic cylinder 2501 passes through the insulation furnace body 1 and is slidably connected to the inner cavity of the insulation chamber 101. A pusher 2502 is fixedly connected to the telescopic end of the second hydraulic cylinder 2501. The pusher 2502 works in conjunction with the partition 23. An installation groove 2503 is provided on the side of the pusher 2502 opposite to the partition 23. A roller 2504 is rotatably installed inside the installation groove 2503. The roller 2504 works in conjunction with the partition 23. The second hydraulic cylinder 2501 drives the pusher 2502 to move, and the pusher 2502 drives the roller 2504 to contact the partition 23. Thus, the pusher 2502 pushes the partition 23 through the roller 2504. The roller 2504 also prevents friction between the pusher 2502 and the partition 23 from affecting their use.

[0022] Reference Figure 3 and Figure 5 A limiting plate 2505 is fixedly connected inside the insulation cavity 101. A limiting groove 2506 is opened on the side of the pusher 2502 opposite to the partition 23. The inner cavity of the limiting groove 2506 is slidably connected to the surface of the limiting plate 2505. The sliding connection between the surface of the limiting plate 2505 and the inner cavity of the limiting groove 2506 stabilizes the position of the pusher 2502 and prevents the position of the partition 23 from being affected by the positional displacement of the pusher 2502.

[0023] Working principle: When heat treatment of workpieces is required, the chamber door 104 is opened and the material rack 3 containing the workpieces is placed in the bracket 22. Then, the chamber door 104 is closed. The second hydraulic cylinder 2501 drives the pusher 2502 to move, and the position of the pusher 2502 is stabilized by the limiting plate 2505 and the limiting groove 2506 to prevent the pusher 2502 from shifting position. This allows the pusher 2502 to drive the roller 2504 to push the partition 23, and the roller 2504 prevents the pusher from being pushed. Friction is generated between the frame 2502 and the partition 23 to push the partition 23 to a position that fits against the inner wall of the feeding chamber 102. Then, the first hydraulic cylinder 21 drives the bracket 22 to move into the insulation chamber 101, and the position of the bracket 22 is stabilized by the limiting post 2201, so that the material rack 3 is moved into the insulation chamber 101 by the bracket 22. Subsequently, the second hydraulic cylinder 2501 drives the pusher 2502 to reset. After losing the support of the pusher 2502, the torsion spring 2 is supported by the support rod 2402. Position 403, and fixedly connected to the inner wall of groove 2401 and the surface of partition 23 by both ends of torsion spring 2403, so that torsion spring 2403 drives partition 23 to reset, and the arc groove 2301 avoids the extension end of the first hydraulic cylinder 21 and the limiting post 2201 from affecting the reset of partition 23, so that the heat preservation cavity 101 and the loading cavity 102 are separated by partition 23, and then the heat treatment of the workpiece can be carried out through the heat preservation cavity 101. After the heat treatment of the workpiece is completed, the push group is used to separate the heat preservation cavity 101 and the loading cavity 102. The component 25 pushes the partition 23, and then the first hydraulic cylinder 21 drives the bracket 22 to move into the upper material cavity 102. After the material rack 3 is fully inside the upper material cavity 102, the pushing component 25 is reset so that the partition 23 can once again separate the upper material cavity 102 and the insulation cavity 101. Then the loading and unloading work can be carried out. The partition 23 can effectively reduce the influence of the outside air on the temperature inside the insulation cavity 101, thereby avoiding excessive temperature fluctuations inside the insulation cavity 101.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A box-type heating and heat-holding furnace for heat treatment, characterized in that: The furnace includes a main body (1), which has an insulation chamber (101) and a feeding chamber (102) inside. The feeding chamber (102) is connected to the insulation chamber (101). A door (104) is rotatably installed on one side of the feeding chamber (102). A base frame (103) is fixedly installed at the bottom of the furnace body (1). An adjustment mechanism (2) is provided inside the base frame (103). The adjustment mechanism (2) includes a first hydraulic cylinder (21). The telescopic end of the first hydraulic cylinder (21) passes through the main body (1) of the heat preservation furnace and is slidably connected to the inner cavity of the feeding chamber (102) and the heat preservation chamber (101). The telescopic end of the first hydraulic cylinder (21) is fixedly connected to a bracket (22). A material rack (3) is slidably sleeved inside the bracket (22). Two partitions (23) are rotatably installed inside the feeding chamber (102). A support assembly (24) is provided inside the feeding chamber (102). The support assembly (24) works in conjunction with the partitions (23). A pushing assembly (25) is provided on the top of the main body (1) of the heat preservation furnace. The pushing assembly (25) works in conjunction with the partitions (23).

2. The box-type heating and holding furnace for heat treatment according to claim 1, characterized in that: The bracket (22) is fixedly connected to a limiting post (2201) on the side opposite to the feeding chamber (102). One end of the limiting post (2201) passes through the main body of the heat preservation furnace (1) and is slidably connected to the inner cavity of the main body of the heat preservation furnace (1).

3. A box-type heating and holding furnace for heat treatment according to claim 1, characterized in that: Several arc-shaped grooves (2301) are provided on the opposite side of the two partitions (23). The arc-shaped grooves (2301) are used in conjunction with the telescopic end and the limiting post (2201) of the first hydraulic cylinder (21).

4. A box-type heating and holding furnace for heat treatment according to claim 1, characterized in that: The support assembly (24) includes a groove (2401) which is opened inside the feeding chamber (102). A support rod (2402) is fixedly installed inside the groove (2401). A torsion spring (2403) is rotatably sleeved on the surface of the support rod (2402). One end of the torsion spring (2403) is fixedly connected to the inner wall of the groove (2401), and the other end of the torsion spring (2403) is fixedly connected to the surface of the partition (23).

5. A box-type heating and holding furnace for heat treatment according to claim 1, characterized in that: The pushing component (25) includes a second hydraulic cylinder (2501), which is fixedly installed on the top of the heat preservation furnace body (1). The telescopic end of the second hydraulic cylinder (2501) passes through the heat preservation furnace body (1) and is slidably connected to the inner cavity of the heat preservation chamber (101). The telescopic end of the second hydraulic cylinder (2501) is fixedly connected to a pusher (2502), which is used in conjunction with the partition (23).

6. A box-type heating and holding furnace for heat treatment according to claim 5, characterized in that: The pusher (2502) has an installation groove (2503) on the side opposite to the partition (23). A roller (2504) is rotatably installed inside the installation groove (2503). The roller (2504) works in conjunction with the partition (23).

7. A box-type heating and holding furnace for heat treatment according to claim 5, characterized in that: The insulation cavity (101) is fixedly connected to a limiting plate (2505), and a limiting groove (2506) is opened on the side of the pusher (2502) opposite to the partition (23). The inner cavity of the limiting groove (2506) is slidably connected to the surface of the limiting plate (2505).

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