Casting heat treatment box-type furnace facilitating feeding and discharging

Abstract

The utility model discloses a casting heat treatment box-type furnace convenient for loading and unloading, and relates to the technical field of casting heat treatment, the casting heat treatment box-type furnace comprises a box body, a base, a heat treatment layer and a cooling layer, the top of the box body is provided with a switch mechanism, the front side of the box body is connected with a box door through the switch mechanism, and the inner wall of the box door is provided with a lifting mechanism. A mounting box is fixedly arranged at the bottom of the box door, a sealing plate is fixedly connected in the box body, the surface of the sealing plate is made of a sealing material, the heat treatment layer is located above the sealing plate, a heating assembly is arranged in the heat treatment layer, the cooling layer is located below the sealing plate, and a cooling mechanism is arranged in the cooling layer. Through the arrangement of the lifting mechanism, the box body is divided into the heat treatment layer and the cooling layer, a casting is firstly subjected to heat treatment and then moved into the cooling layer to be cooled, and the problem that according to an existing device, after the casting is subjected to heat treatment, scalding is likely to be caused during carrying is solved.

Description

Technical Field

[0001] This utility model relates to the field of casting heat treatment technology, specifically to a casting heat treatment box furnace that facilitates loading and unloading. Background Technology

[0002] Heat treatment of castings involves placing the workpiece in a solid state within a specific medium and subjecting it to heating, holding, and cooling using appropriate methods. By adjusting the surface, chemical composition, and internal structure of the material, the desired structure and properties are achieved. Heat treatment of cast steel can improve its strength, hardness, toughness, wear resistance, and corrosion resistance. Existing heat treatment equipment typically uses a furnace to heat-treat castings. However, when unloading the metal castings after heat treatment, the castings cannot cool down quickly within the heat treatment chamber, requiring handling after heating. The surface temperature of the heated castings is extremely high, which can easily lead to burns.

[0003] Based on this, a box furnace for heat treatment of castings that facilitates loading and unloading is now provided, which can eliminate the drawbacks of existing equipment. Utility Model Content

[0004] The purpose of this invention is to provide a box furnace for heat treatment of castings that facilitates loading and unloading, in order to solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A box furnace for heat treatment of castings, designed for easy loading and unloading, includes a box body and a base, as well as a heat treatment layer and a cooling layer. A switching mechanism is installed on the top of the box body, and a door is connected to the front of the box body via the switching mechanism. A pair of guide rods are installed on both sides of the box body, and a lifting mechanism is installed on the inner wall of the door. A mounting box is fixedly installed at the bottom of the door. A sealing plate is fixedly connected inside the box body, and the surface of the sealing plate is made of a sealing material. The heat treatment layer is located above the sealing plate and contains a heating component. The cooling layer is located below the sealing plate and contains a cooling mechanism.

[0007] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0008] In one alternative embodiment: the switching mechanism includes a first motor, a fixed plate, a first threaded rod, and a first movable block. The output end of the first motor is connected to the first threaded rod, the first threaded rod is rotatably connected to the fixed plate, the first threaded rod passes through the fixed plate and is rotatably connected to a limit block, and the first threaded rod is threadedly connected to the end of the first movable block away from the door.

[0009] In one alternative embodiment: the lifting mechanism includes a second motor, a second threaded rod, and a second movable block. The second motor is disposed inside the mounting box, and the output end of the second motor is connected to the second threaded rod. The second movable block is slidably connected to the inner wall of the box door, and the second threaded rod is threadedly connected to the second movable block. A placement component is disposed on the side of the second movable block near the box body.

[0010] In one alternative: the placement assembly includes a top partition, a placement plate, and a bottom partition. The top partition is located at the top of the second moving block, the bottom partition is located at the bottom of the second moving block, and the upper surface of the bottom partition is inclined. The placement plate has through holes.

[0011] In one alternative embodiment: the cooling mechanism includes a conveying assembly, spray nozzles, a drain tank, a pump, and a water supply pipe. The conveying assembly has several spray nozzles arranged through the tank body. The conveying assembly is connected to the drain tank via the water supply pipe and the pump. The drain tank is located inside the base and at the bottom of the tank body. The tank body is connected to the drain tank.

[0012] In one alternative: a filter plate is provided at the connection point between the box body and the drainage box.

[0013] In one alternative: ventilation nets are provided on both sides of the housing near the cooling layer.

[0014] In one alternative: a sealing block is provided on the front of the enclosure, and a sealing groove corresponding to the sealing block is provided on the back of the enclosure door.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention uses a lifting mechanism to divide the chamber into a heat treatment layer and a cooling layer. The sealing plate prevents the two layers from interfering with each other. The casting is placed on the placement plate, and the control switch mechanism closes the chamber door. After the casting is heat-treated, the lifting mechanism moves the casting to the cooling layer for cooling. Finally, the chamber door is opened for unloading. This invention solves the problem of burns that can easily occur when unloading and handling materials after heat treatment in existing devices. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a cross-sectional view of the cooling state of this utility model.

[0019] Figure 3 This is a cross-sectional view of the heat treatment state of this utility model.

[0020] Figure 4This is a schematic diagram of the door structure of this utility model.

[0021] Figure reference numerals: 1. Box body; 2. Box door; 3. Base; 4. Heat treatment layer; 5. Cooling layer; 6. Cooling mechanism; 601. Conveying assembly; 602. Water spray head; 603. Drainage tank; 604. Extraction pump; 605. Water supply pipe; 7. Switching mechanism; 701. First motor; 702. Fixing plate; 703. First threaded rod; 704. First moving block; 705. Limiting block; 8. Lifting mechanism; 801. Second motor; 802. Second threaded rod; 803. Second moving block; 804. Top partition; 805. Placement plate; 806. Bottom partition; 9. Filter plate; 10. Sealing plate; 11. Heating assembly; 12. Ventilation mesh; 13. Sealing block; 14. Sealing groove; 15. Mounting box; 16. Guide rod. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0023] In one embodiment, such as Figures 1-4 As shown, a casting heat treatment box furnace for easy loading and unloading includes a box body 1 and a base 3, and also includes a heat treatment layer 4 and a cooling layer 5. The top of the box body 1 is provided with a switching mechanism 7, and the front of the box body 1 is connected to a box door 2 through the switching mechanism 7. A pair of guide rods 16 are provided on both sides of the box body 1. The inner wall of the box door 2 is provided with a lifting mechanism 8, and the bottom of the box door 2 is fixedly provided with a mounting box 15. A sealing plate 10 is fixedly connected inside the box body 1, and the surface of the sealing plate 10 is a sealing material. The heat treatment layer 4 is located above the sealing plate 10, and a heating component 11 is provided inside the heat treatment layer 4. The cooling layer 5 is located below the sealing plate 10, and a cooling mechanism 6 is provided inside the cooling layer 5.

[0024] In this embodiment, the lifting mechanism 8 divides the box 1 into two parts: a heat treatment layer 4 and a cooling layer 5. The sealing plate 10 prevents the two from interfering with each other. The casting is placed on the placement plate 805, and the control switch mechanism 7 closes the box door 2. After the casting is heat-treated, the lifting mechanism 8 moves the casting into the cooling layer 5 for cooling. Finally, the box door 2 is opened for unloading, which solves the problem that the existing device is prone to burns when unloading and handling materials after heat treatment.

[0025] In one embodiment, such as Figure 2As shown, the switching mechanism 7 includes a first motor 701, a fixed plate 702, a first threaded rod 703, and a first moving block 704. The output end of the first motor 701 is connected to the first threaded rod 703. The first threaded rod 703 is rotatably connected to the fixed plate 702. The first threaded rod 703 passes through the fixed plate 702 and is rotatably connected to a limit block 705. The first threaded rod 703 is threadedly connected to the end of the first moving block 704 away from the box door 2. The first motor 701 is controlled to rotate the first threaded rod 703, thereby controlling the opening and closing of the box door 2. When the box door 2 is opened, the placement plate 805 can be taken out for easy loading and unloading.

[0026] In one embodiment, such as Figure 4 As shown, the lifting mechanism 8 includes a second motor 801, a second threaded rod 802, and a second moving block 803. The second motor 801 is installed inside the mounting box 15. The output end of the second motor 801 is connected to the second threaded rod 802. The second moving block 803 is slidably connected to the inner wall of the box door 2. The second threaded rod 802 is threadedly connected to the second moving block 803. A placement component is provided on the side of the second moving block 803 near the box body 1. The second motor 801 is controlled to rotate the second threaded rod 802, thereby controlling the lifting and lowering of the second moving block 803, which drives the casting on the placement plate 805 to switch between the heat treatment layer 4 and the cooling layer 5.

[0027] In one embodiment, such as Figures 2-4 As shown, the placement assembly includes a top partition 804, a placement plate 805, and a bottom partition 806. The top partition 804 is located at the top of the second moving block 803, and the bottom partition 806 is located at the bottom of the second moving block 803. The upper surface of the bottom partition 806 is inclined. The placement plate 805 has through holes. When the placement assembly is located in the cooling layer 5, the top partition 804 is fitted and sealed with the sealing plate 10. When the placement assembly is located in the heat treatment layer 4, the bottom partition 806 is fitted and sealed with the sealing plate 10, so that the two do not interfere with each other and also ensure that the casting avoids heat loss during heat treatment, thereby increasing the heat treatment efficiency.

[0028] In one embodiment, such as Figure 2 and Figure 3As shown, the cooling mechanism 6 includes a conveying assembly 601, a water spray head 602, a drain tank 603, a pump 604, and a water supply pipe 605. The conveying assembly 601 has several water spray heads 602 arranged through the housing 1. The conveying assembly 601 is connected to the drain tank 603 through the water supply pipe 605 and the pump 604. The drain tank 603 is located inside the base 3 and at the bottom of the housing 1. The housing 1 is connected to the drain tank 603. The pump 604 works to draw water from the drain tank 603 into the conveying assembly 601, which is then sprayed out by the water spray head 602, thereby cooling the heat-treated castings on the placement plate 805. The used water is then returned to the drain tank 603 for recycling. A water-cooling converter can be installed in the drain tank 603 to produce cooling water and avoid water waste.

[0029] In one embodiment, such as Figure 2 and Figure 3 As shown, a filter plate 9 is provided at the connection between the box body 1 and the drainage box 603 to prevent impurities from entering the drainage box 603 and being drawn away by the pump 604, thus preventing blockage.

[0030] In one embodiment, such as Figure 1 As shown, ventilation nets 12 are provided on both sides of the housing 1 near the cooling layer 5, which helps the cooling mechanism 6 dissipate heat. The ventilation nets 12 can be used in conjunction with a cooling fan.

[0031] In one embodiment, such as Figure 1 and Figure 4 As shown, a sealing block 13 is provided on the front of the box body 1, and a sealing groove 14 corresponding to the sealing block 13 is provided on the back of the box door 2, so as to ensure the internal sealing when the box door 2 is closed and prevent heat loss during heat treatment.

[0032] The above embodiments disclose a box furnace for easy loading and unloading of castings for heat treatment. A first motor 701 drives a first threaded rod 703 to rotate, thereby opening the furnace door 2 and placing the casting on a placement plate 805. After closing the furnace door 2, a second motor 801 rotates a second threaded rod 802, thereby controlling the lifting and lowering of a second moving block 803. This causes the casting on the placement plate 805 to switch between the heat treatment layer 4 and the cooling layer 5. First, the casting is moved to the heat treatment layer 4, and the heating assembly 11 is activated to heat treat the casting. At this time, the bottom partition 806 is sealed against the sealing plate 10 to prevent heat loss during heat treatment and increase the heat treatment efficiency. To improve efficiency, after heat treatment, the placement plate 805 is moved to the cold treatment layer 5. At this time, the top partition plate 804 and the sealing plate 10 are fitted together to prevent cooling water from entering the heat treatment layer 4. The extraction pump 604 is turned on to draw water from the drain tank 603 into the conveying assembly 601, which is then sprayed out by the spray nozzle 602 to cool the heat-treated castings on the placement plate 805. The used water will then return to the drain tank 603 for recycling, avoiding water waste. This structure facilitates loading and unloading, solves the problem of burns caused by unloading and handling after heat treatment in existing devices, and ensures the sealing of the castings during heat treatment.

[0033] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A box furnace for heat treatment of castings that facilitates loading and unloading, comprising a box body (1) and a base (3), characterized in that, It also includes a heat treatment layer (4) and a cooling layer (5). A switch mechanism (7) is provided on the top of the box (1). A door (2) is connected to the front of the box (1) through the switch mechanism (7). A pair of guide rods (16) are provided on both sides of the box (1). A lifting mechanism (8) is provided on the inner wall of the door (2). An installation box (15) is fixedly provided at the bottom of the door (2). A sealing plate (10) is fixedly connected inside the box (1). The surface of the sealing plate (10) is a sealing material. The heat treatment layer (4) is located above the sealing plate (10). A heating component (11) is provided inside the heat treatment layer (4). The cooling layer (5) is located below the sealing plate (10). A cooling mechanism (6) is provided inside the cooling layer (5).

2. The easy-to-load casting heat treatment box furnace according to claim 1, characterized in that, The switching mechanism (7) includes a first motor (701), a fixed plate (702), a first threaded rod (703), and a first moving block (704). The output end of the first motor (701) is connected to the first threaded rod (703). The first threaded rod (703) is rotatably connected to the fixed plate (702). The first threaded rod (703) passes through the fixed plate (702) and is rotatably connected to a limit block (705). The first threaded rod (703) is threadedly connected to the end of the first moving block (704) away from the door (2).

3. The easy-to-load casting heat treatment box furnace according to claim 1, characterized in that, The lifting mechanism (8) includes a second motor (801), a second threaded rod (802), and a second moving block (803). The second motor (801) is installed in the mounting box (15). The output end of the second motor (801) is connected to the second threaded rod (802). The second moving block (803) is slidably connected to the inner wall of the box door (2). The second threaded rod (802) is threadedly connected to the second moving block (803). The second moving block (803) has a placement component on the side near the box body (1).

4. The easy-to-load casting heat treatment box furnace according to claim 3, characterized in that, The placement assembly includes a top partition (804), a placement plate (805), and a bottom partition (806). The top partition (804) is located at the top of the second moving block (803), and the bottom partition (806) is located at the bottom of the second moving block (803). The upper surface of the bottom partition (806) is inclined, and the placement plate (805) has a through hole.

5. The easy-to-load casting heat treatment box furnace according to claim 1, characterized in that, The cooling mechanism (6) includes a conveying assembly (601), a spray nozzle (602), a drain tank (603), a pump (604), and a water supply pipe (605). The conveying assembly (601) has several spray nozzles (602) arranged through the housing (1). The conveying assembly (601) is connected to the drain tank (603) through the water supply pipe (605) and the pump (604). The drain tank (603) is located in the base (3) and at the bottom of the housing (1). The housing (1) is connected to the drain tank (603).

6. The easy-to-load casting heat treatment box furnace according to claim 5, characterized in that, A filter plate (9) is provided at the connection between the box body (1) and the drainage box (603).

7. The easy-to-load casting heat treatment box furnace according to claim 1, characterized in that, Ventilation nets (12) are provided on both sides of the box (1) near the cooling layer (5).

8. The easy-to-load casting heat treatment box furnace according to claim 1, characterized in that, The front of the box (1) is provided with a sealing block (13), and the back of the box door (2) is provided with a sealing groove (14) corresponding to the sealing block (13).

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