A mold steel material heat treatment furnace temperature zoning regulation device

Abstract

The utility model relates to work piece heat treatment technical field, and disclose a mould steel heat treatment furnace temperature zoning regulation and control device, including heat treatment furnace main part, heat treatment furnace main part is divided into preheating treatment area, high temperature treatment area and soaking treatment area, the top surface of preheating treatment area and soaking treatment area front end and rear end all are fixedly connected with heat shield subassembly. This mould steel heat treatment furnace temperature zoning regulation and control device, through the setting of circulation subassembly, when preheating treatment area's heat -proof door opens, starts circulation fan, opens solenoid valve, the heat of high temperature treatment area is conveyed to filter box through high temperature resistant pipe B, after filtering through honeycomb ceramic filter core, along high temperature resistant pipe A is conveyed to preheating treatment area, to realize the heat loss after furnace door opening can be quickly replenished, after the heat loss of preheating treatment area, need additional increase replenishing time, help to improve the processing efficiency of heat treatment furnace.

Description

Technical Field

[0001] This utility model relates to the field of workpiece heat treatment technology, and in particular to a temperature zone control device for a heat treatment furnace for mold steel. Background Technology

[0002] Mold steel is a type of steel used to manufacture molds such as cold stamping dies, hot forging dies, and die casting molds. Mold materials are the material and technological foundation of the mold manufacturing industry. Among them, mold steel is a traditional mold material, and its variety, specifications, and quality play a decisive role in the performance, service life, and manufacturing cycle of the mold. In order to meet the design requirements of the heat treatment process for mold steel, a temperature control device for the heat treatment furnace of mold steel is required.

[0003] A heat treatment furnace temperature control device disclosed in announcement number CN221238144U achieves the effect of quickly and safely cooling the furnace charge after heating by using a combination of telescopic rod, outer frame, cold air pipe and cold air fan, thus avoiding the situation where the cooling time is too long and affects the next process, and the situation where workers are burned due to manual cooling.

[0004] However, the temperature control device of this heat treatment furnace has the following disadvantages: when heat treating workpieces, it can only raise, hold and cool the temperature of the furnace as a whole, and it is difficult to divide the temperature of the heat treatment furnace into zones to adapt to different heat treatment materials, which is not conducive to improving the process adaptability of the heat treatment furnace. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The purpose of this invention is to provide a temperature zone control device for a heat treatment furnace for mold steel, thereby solving the problem mentioned in the background art of not being able to improve the process adaptability of the heat treatment furnace.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a temperature zone control device for a heat treatment furnace of mold steel, comprising a furnace body divided into a preheating zone, a high-temperature zone, and a soaking zone. Heat shielding components are fixedly connected to the top surfaces of the front and rear ends of the preheating and soaking zones. Monitoring components are fixedly connected to the furnace top and sides of the preheating, high-temperature, and soaking zones. Cooling fans are fixedly connected to one side of each of the preheating, high-temperature, and soaking zones. A circulation component is fixedly connected to one side of the preheating zone.

[0009] The heat shielding assembly includes a gantry frame, an electric cylinder, and a door insulation unit;

[0010] The monitoring components include thermocouple temperature sensor A, thermocouple temperature sensor B, and temperature zone PID controller.

[0011] The circulation assembly includes a mounting cover, a circulation fan, a high-temperature resistant tube A, a filter box, a honeycomb ceramic filter element, a high-temperature resistant tube B, and a connecting cover.

[0012] As a further embodiment of this utility model, heating elements are provided inside the preheating treatment zone, the high-temperature treatment zone, and the homogenization treatment zone, and each heating element is powered by an independent power supply module.

[0013] As a further embodiment of this utility model, the heat shielding assembly includes a gantry frame that is fixedly connected to the top surfaces of the front and rear ends of the preheating treatment zone and the homogenizing treatment zone. An electric cylinder is fixedly connected to the middle of the top surface of the gantry frame, and an insulation door is fixedly connected to the bottom end of the electric cylinder.

[0014] As a further embodiment of this utility model, the top of the front and rear ends of the preheating treatment zone and the heat soaking treatment zone are provided with partition grooves, and the partition grooves are adapted to the insulation door.

[0015] As a further embodiment of this utility model, the monitoring component includes thermocouple temperature sensor A and thermocouple temperature sensor B, which are respectively fixedly connected to the furnace top and side of the preheating treatment zone, the high temperature treatment zone, and the soaking treatment zone. The thermocouple temperature sensor A and thermocouple temperature sensor B are electrically connected to a temperature zone PID controller via power lines.

[0016] As a further embodiment of this utility model, one side of the temperature zone PID controller is electrically connected to a main PLC control device via a composite cable, and the main PLC control device is installed on one side of the heat treatment furnace body.

[0017] As a further embodiment of this utility model, the circulation assembly includes a mounting cover fixedly connected to one side of the preheating treatment zone. A circulation fan is installed inside the mounting cover. A high-temperature resistant pipe A is fixedly connected to one end of the mounting cover. A filter box is fixedly connected to one end of the high-temperature resistant pipe A. A honeycomb ceramic filter element is installed inside the filter box. A high-temperature resistant pipe B is fixedly connected to the other side of the filter box. A connecting cover is fixedly connected to one end of the high-temperature resistant pipe B. One end of the connecting cover is installed on one side of the high-temperature treatment zone.

[0018] As a further embodiment of this utility model, solenoid valves are fixedly installed on the surfaces of both the high-temperature resistant tube A and the high-temperature resistant tube B, and the solenoid valves are electrically connected to the main PLC control device.

[0019] (III) Beneficial Effects

[0020] This utility model provides a temperature zone control device for a heat treatment furnace for mold steel, which has the following beneficial effects:

[0021] 1. This temperature zone control device for the heat treatment furnace of mold steel, through the setting of preheating treatment zone, high temperature treatment zone, soaking treatment zone, monitoring components and heat shielding components, allows for the monitoring of the internal heat treatment temperature by thermocouple temperature sensors A and B in each zone according to the processing material of the mold steel. The monitored data is sent to the temperature zone PID controller, which controls the heating power of the heating elements (not shown in the figure) in each zone. At the same time, the insulation doors of each zone reduce heat transfer between zones, thereby achieving independent and precise temperature control of multiple temperature zones. This accurately controls the temperature of different areas in the heat treatment furnace, meeting the requirements of complex heat treatment curves of mold steel. It avoids the problem that when heat treating workpieces, it is only possible to raise, hold and cool the temperature of the furnace as a whole, which is difficult to divide the temperature of the heat treatment furnace into zones to adapt to different heat treatment materials, thus helping to improve the process adaptability of the heat treatment furnace.

[0022] 2. The temperature zone control device of this mold steel heat treatment furnace, through the setting of the circulation component, when the insulation door of the preheating treatment zone is opened, starts the circulation fan and opens the solenoid valve, and transports the heat of the high-temperature treatment zone through the high-temperature resistant pipe B to the filter box. After being filtered by the honeycomb ceramic filter core, it is transported to the preheating treatment zone through the high-temperature resistant pipe A. This allows the heat lost after the furnace door is opened to be quickly replenished, avoiding the need for additional replenishment time after heat loss in the preheating treatment zone, and helps to improve the processing efficiency of the heat treatment furnace. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the thermal shielding component structure of this utility model;

[0025] Figure 3 This is a schematic diagram of the monitoring component structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the circulation component of this utility model.

[0027] In the diagram: 1. Main body of the heat treatment furnace; 2. Preheating treatment zone; 3. High temperature treatment zone; 4. Soaking treatment zone; 5. Monitoring components; 501. Thermocouple temperature sensor A; 502. Thermocouple temperature sensor B; 503. Temperature zone PID controller; 6. Cooling fan; 7. Circulation components; 701. Mounting cover; 702. Circulation fan; 703. High temperature resistant tube A; 704. Filter box; 705. Honeycomb ceramic filter element; 706. High temperature resistant tube B; 707. Connecting cover; 8. Main PLC control equipment; 9. Heat shielding components; 901. Gantry frame; 902. Electric cylinder; 903. Insulation door. Detailed Implementation

[0028] 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.

[0029] Please see Figures 1 to 4 This utility model provides a technical solution: a temperature zone control device for a heat treatment furnace for mold steel, comprising a heat treatment furnace body 1, which is divided into a preheating treatment zone 2, a high-temperature treatment zone 3, and a homogenizing treatment zone 4. Heat shielding components 9 are fixedly connected to the top surfaces of the front and rear ends of the preheating treatment zone 2 and the homogenizing treatment zone 4. Monitoring components 5 are fixedly connected to the furnace top and sides of the preheating treatment zone 2, the high-temperature treatment zone 3, and the homogenizing treatment zone 4. Cooling fans 6 are fixedly connected to one side of the preheating treatment zone 2, the high-temperature treatment zone 3, and the homogenizing treatment zone 4. A circulation component 7 is fixedly connected to one side of the preheating treatment zone 2.

[0030] The heat shielding assembly 9 includes a gantry frame 901, an electric cylinder 902, and an insulated door 903;

[0031] The monitoring component 5 includes thermocouple temperature sensor A 501, thermocouple temperature sensor B 502, and temperature zone PID controller 503. Through the setup of preheating zone 2, high-temperature treatment zone 3, soaking zone 4, monitoring component 5, and heat shielding component 9, during use, the thermocouple temperature sensors A 501 and B 502 in each zone monitor the internal heat treatment temperature in real time according to the processing material of the mold steel. The monitored data is sent to the temperature zone PID controller 503, which controls the heating power of the heating elements (not shown in the figure) in each zone. Simultaneously, the insulation doors 903 in each zone reduce heat transfer between zones, thereby achieving independent and precise temperature control of multiple temperature zones. This allows for precise control of the temperature in different areas within the heat treatment furnace, meeting the requirements of complex heat treatment curves for mold steel. It avoids the limitation of only being able to raise, hold, and cool the overall temperature within the furnace during heat treatment of workpieces, making it difficult to zone the temperature within the furnace to adapt to different heat treatment materials, thus improving the process adaptability of the heat treatment furnace.

[0032] The circulation assembly 7 includes a mounting cover 701, a circulation fan 702, a high-temperature resistant tube A 703, a filter box 704, a honeycomb ceramic filter element 705, a high-temperature resistant tube B 706, and a connecting cover 707. Through the configuration of the circulation assembly 7, when the insulation door 903 of the preheating treatment zone 2 is opened, the circulation fan 702 is activated, and the solenoid valve is opened. The heat from the high-temperature treatment zone 3 is then transported to the filter box 704 through the high-temperature resistant tube B 706. After being filtered by the honeycomb ceramic filter element 705, the heat is transported back to the preheating treatment zone 2 through the high-temperature resistant tube A 703. This allows for rapid replenishment of heat lost after the furnace door is opened, avoiding the need for additional replenishment time after heat loss in the preheating treatment zone 2, and helping to improve the processing efficiency of the heat treatment furnace.

[0033] Heating elements are installed inside the preheating zone 2, the high-temperature zone 3, and the homogenization zone 4. Each heating element is powered by an independent power module. The arrangement of the preheating zone 2, the high-temperature zone 3, and the homogenization zone 4 achieves the function of zoned heating.

[0034] The heat shielding component 9 includes a gantry frame 901 that is fixedly connected to the top surfaces of the front and rear ends of the preheating treatment zone 2 and the uniform heat treatment zone 4. An electric cylinder 902 is fixedly connected to the middle of the top surface of the gantry frame 901, and an insulation door 903 is fixedly connected to the bottom end of the electric cylinder 902. The heat shielding component 9 serves to shield the heat transfer between the zones.

[0035] The top of the preheating treatment zone 2 and the heat soaking treatment zone 4 at the front and rear ends are provided with partition grooves. The partition grooves are compatible with the heat insulation door 903. The setting of the preheating treatment zone 2 serves to preheat the mold steel first.

[0036] The monitoring component 5 includes thermocouple temperature sensor A 501 and thermocouple temperature sensor B 502, which are fixedly connected to the top and side of the furnace in the preheating zone 2, high-temperature zone 3, and soaking zone 4, respectively. The thermocouple temperature sensor A 501 and thermocouple temperature sensor B 502 are electrically connected to a temperature zone PID controller 503 via power lines. By setting up the monitoring component 5, it can monitor each zone and facilitate the control of the heating element temperature rise.

[0037] One side of the temperature zone PID controller 503 is electrically connected to the main PLC control device 8 via a composite cable. The main PLC control device 8 is installed on one side of the heat treatment furnace body 1. Through the setting of the main PLC control device 8, it plays the role of controlling the PID controllers 503 of each temperature zone and transmitting operation commands.

[0038] The circulation assembly 7 includes a mounting cover 701 fixedly connected to one side of the preheating treatment zone 2. A circulation fan 702 is installed inside the mounting cover 701. A high-temperature resistant tube A703 is fixedly connected to one end of the mounting cover 701. A filter box 704 is fixedly connected to one end of the high-temperature resistant tube A703. A honeycomb ceramic filter element 705 is installed inside the filter box 704. A high-temperature resistant tube B706 is fixedly connected to the other side of the filter box 704. A connecting cover 707 is fixedly connected to one end of the high-temperature resistant tube B706. One end of the connecting cover 707 is installed on one side of the high-temperature treatment zone 3. Through the arrangement of the circulation assembly 7, the waste heat is circulated.

[0039] Solenoid valves are fixedly installed on the surfaces of high-temperature resistant tubes A703 and B706. The solenoid valves are electrically connected to the main PLC control device 8. The arrangement of high-temperature resistant tubes A703 and B706 serves to transfer the heat from the high-temperature treatment zone 3 to the preheating treatment zone 2.

[0040] In this invention, the working steps of the device are as follows:

[0041] First step: When in use, after the insulation door 903 of the preheating treatment zone 2 is opened, start the circulation fan 702 and open the solenoid valve to transfer the heat of the high temperature treatment zone 3 to the filter box 704 through the high temperature resistant pipe B706. After being filtered by the honeycomb ceramic filter element 705, it is transferred to the preheating treatment zone 2 through the high temperature resistant pipe A703.

[0042] The second step: During use, according to the processing material of the mold steel, the A thermocouple temperature sensor 501 and B thermocouple temperature sensor 502 of each zone monitor the internal heat treatment temperature in real time and send the monitored data to the temperature zone PID controller 503, so that the temperature zone PID controller 503 controls the heating power of the heating elements (not shown in the figure) of each zone, and at the same time, the insulation door 903 of each zone reduces the heat transfer between zones.

[0043] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0044] 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.

[0045] 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 temperature zone control device for a heat treatment furnace for mold steel, comprising a heat treatment furnace body (1), characterized in that: The main body (1) of the heat treatment furnace is divided into a preheating treatment zone (2), a high temperature treatment zone (3) and a homogenization treatment zone (4). The top surfaces of the front and rear ends of the preheating treatment zone (2) and the homogenization treatment zone (4) are fixedly connected to heat shielding components (9). The top and sides of the preheating treatment zone (2), the high temperature treatment zone (3) and the homogenization treatment zone (4) are fixedly connected to monitoring components (5). A cooling fan (6) is fixedly connected to one side of the preheating treatment zone (2), the high temperature treatment zone (3) and the homogenization treatment zone (4). A circulation component (7) is fixedly connected to one side of the preheating treatment zone (2). The heat shielding assembly (9) includes a gantry (901), an electric cylinder (902), and an insulated door (903). The monitoring component (5) includes a thermocouple temperature sensor A (501), a thermocouple temperature sensor B (502), and a temperature zone PID controller (503). The circulation assembly (7) includes a mounting cover (701), a circulation fan (702), a high-temperature resistant tube A (703), a filter box (704), a honeycomb ceramic filter element (705), a high-temperature resistant tube B (706), and a connecting cover (707).

2. The temperature zone control device for a heat treatment furnace for mold steel according to claim 1, characterized in that: Heating elements are provided inside the preheating treatment zone (2), the high temperature treatment zone (3), and the heat soaking treatment zone (4), and each heating element is powered by an independent power supply module.

3. The temperature zone control device for a heat treatment furnace for mold steel according to claim 1, characterized in that: The heat shielding assembly (9) includes a gantry frame (901) that is fixedly connected to the top surface of the front end and the rear end of the preheating treatment area (2) and the heat homogenization treatment area (4). An electric cylinder (902) is fixedly connected to the middle of the top surface of the gantry frame (901), and an insulation door (903) is fixedly connected to the bottom end of the electric cylinder (902).

4. The temperature zone control device for a heat treatment furnace for mold steel according to claim 1, characterized in that: The top of the front and rear ends of the preheating treatment zone (2) and the heat homogenization treatment zone (4) are provided with partition grooves, which are adapted to the insulation door (903).

5. The temperature zone control device for a heat treatment furnace for mold steel according to claim 1, characterized in that: The monitoring component (5) includes a thermocouple temperature sensor A (501) and a thermocouple temperature sensor B (502) that are fixedly connected to the top and side of the furnace in the preheating treatment zone (2), the high temperature treatment zone (3) and the heat soaking treatment zone (4), respectively. The thermocouple temperature sensor A (501) and the thermocouple temperature sensor B (502) are electrically connected to a temperature zone PID controller (503) via a power line.

6. The temperature zone control device for a mold steel heat treatment furnace according to claim 5, characterized in that: One side of the temperature zone PID controller (503) is electrically connected to the main PLC control device (8) via a composite cable. The main PLC control device (8) is installed on one side of the heat treatment furnace body (1).

7. The temperature zone control device for a heat treatment furnace for mold steel according to claim 1, characterized in that: The circulation assembly (7) includes a mounting cover (701) fixedly connected to one side of the preheating treatment zone (2). A circulation fan (702) is installed inside the mounting cover (701). A high-temperature resistant tube A (703) is fixedly connected to one end of the mounting cover (701). A filter box (704) is fixedly connected to one end of the high-temperature resistant tube A (703). A honeycomb ceramic filter element (705) is installed inside the filter box (704). A high-temperature resistant tube B (706) is fixedly connected to the other side of the filter box (704). A connecting cover (707) is fixedly connected to one end of the high-temperature resistant tube B (706). One end of the connecting cover (707) is installed on one side of the high-temperature treatment zone (3).

8. The temperature zone control device for a heat treatment furnace for mold steel according to claim 7, characterized in that: Solenoid valves are fixedly installed on the surfaces of both the high-temperature resistant tube A (703) and the high-temperature resistant tube B (706), and the solenoid valves are electrically connected to the main PLC control device (8).

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