Heat treatment temperature control cooling furnace

Abstract

The utility model discloses a heat treatment temperature control cooling furnace, and belongs to the technical field of heat treatment units. The heat treatment temperature control cooling furnace mainly comprises a furnace body, a heating device, a refrigerating device, a second air pipe, a temperature measuring device and an air guide plate. Wherein a furnace shell is arranged on the outer wall surface of the furnace body, a furnace cover is arranged at the top end of the furnace body, and a hearth is arranged in the furnace body; a heating device is arranged in the hearth; a refrigerating device is arranged on the furnace body, and an air outlet end is arranged in the refrigerating device; a second air pipe is arranged at the bottom of the furnace body; a temperature measuring device is arranged in the hearth; wherein the air outlet end of the refrigerating device is connected with an air deflector. According to the utility model, heating and cooling in the furnace can be realized, and compared with the prior art, the furnace is more convenient and has higher practicability.

Description

Technical Field

[0001] This utility model relates to the technical field of heat treatment units, and in particular to a heat treatment temperature-controlled cooling furnace. Background Technology

[0002] The main purpose of heat treatment is to improve the mechanical properties of materials, eliminate residual stress, and improve the machinability of metals. Therefore, heat treatment is an important process widely used in the machining of mechanical products. Heat treatment furnaces, as one of the commonly used pieces of equipment in heat treatment, are widely used in the process, typically for processing cutting tools and other mechanical products.

[0003] Currently, traditional heat treatment generally involves heating inside the furnace and cooling outside the furnace. Its disadvantages are that the heat radiation from the tool when it is cooled outside the furnace has a significant impact on the surrounding environment. Moreover, during the cooling process, the oxidation of the tool and equipment surface is difficult to control, which in turn affects the lifespan of the tool and equipment. Therefore, it is particularly important to manufacture a heat treatment equipment that heats and cools inside the furnace. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, the heat treatment temperature-controlled cooling furnace provided by this utility model mainly includes a furnace body, a heating device, a cooling device, a temperature measuring device, a second air duct, and a guide plate. In use, the knife to be processed is placed in the furnace body, where an internal retaining element holds the knife against its outer wall. Then, the furnace lid is closed. Next, the heating device inside the furnace begins operation, and the temperature inside the furnace gradually rises. When the temperature measuring device detects that the temperature inside the furnace has reached a set threshold, it maintains the temperature for a certain period according to the heat treatment requirements before activating the cooling device. Cold air from outside is introduced into the furnace body through the guide plate, thereby cooling the knife. Hot air inside the furnace can escape through the second air duct. After a period of time, when the knife meets the relevant requirements, the furnace lid is removed, and the knife is taken out, thus achieving the purpose of processing the knife. This utility model can achieve both in-furnace heating and in-furnace cooling, which is more convenient than existing technologies and has high practicality.

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

[0006] Heat treatment temperature-controlled cooling furnace, including:

[0007] The furnace body has a furnace shell on its outer wall, a furnace cover on its top, and a furnace chamber inside the furnace body.

[0008] A heating device for increasing the temperature of the furnace chamber, the heating device being disposed inside the furnace chamber;

[0009] A refrigeration device is used to reduce the temperature of the furnace chamber. The refrigeration device is installed on the furnace body and has an air outlet.

[0010] The second air duct is used to exhaust the hot air in the furnace chamber, and the second air duct is located at the bottom of the furnace body;

[0011] The temperature measuring device is installed inside the furnace.

[0012] in,

[0013] The air outlet of the refrigeration device is connected to an air guide plate.

[0014] Furthermore, the heating device is a resistance band.

[0015] Furthermore, the temperature measuring device is a thermocouple.

[0016] Furthermore, a fastener is connected to the side of the air guide plate near the inner wall of the furnace, and one end of the fastener is connected to the inner wall of the furnace.

[0017] Furthermore, the heat treatment temperature-controlled cooling furnace also includes:

[0018] Thermal insulation components;

[0019] The heating device is provided on the heat insulation component, the heat insulation component is disposed on the inner wall of the furnace, and the heat insulation component is spaced apart from the fastener.

[0020] Furthermore, the refrigeration device includes:

[0021] An induced draft fan is installed on one side of the furnace shell;

[0022] The first air duct has one end connected to the induced draft fan, and the other end of the first air duct passes through the furnace and is connected to the air guide plate.

[0023] Furthermore, the heat treatment temperature-controlled cooling furnace also includes;

[0024] An exhaust vent plate is disposed at the bottom of the furnace, and a second air duct passes through the exhaust vent plate; and / or

[0025] The exhaust device is located near the air outlet of the second air duct.

[0026] Furthermore, the exhaust device includes:

[0027] An exhaust fan is used to remove hot air from the furnace.

[0028] A first electric actuator is used to control the working state of the exhaust fan, and the first electric actuator is installed on the second air duct.

[0029] Furthermore, the exhaust device also includes:

[0030] Manual valve;

[0031] The manual valve is used to forcibly shut down the exhaust fan, and the manual valve is installed on the second air duct.

[0032] Furthermore, the heat treatment temperature-controlled cooling furnace also includes:

[0033] A collision protection ring is installed on the inner wall of the furnace chamber.

[0034] The beneficial effects of this utility model are:

[0035] 1. The heat treatment temperature control cooling furnace provided by this utility model is equipped with a heating device, which can increase the temperature inside the cooling furnace.

[0036] 2. The heat treatment temperature-controlled cooling furnace is equipped with a refrigeration device that introduces cold air from the outside into the furnace. This design can reduce the temperature of the cutting tools placed in the furnace.

[0037] 3. The heat treatment temperature-controlled cooling furnace is equipped with a second air duct, which can exhaust the hot air inside the cooling furnace.

[0038] 4. The heat treatment temperature control cooling furnace is equipped with a temperature measuring device, which can monitor the temperature of the cutting tools placed in the cooling furnace in real time.

[0039] 5. The heat treatment temperature-controlled cooling furnace is equipped with an air guide plate, which can evenly deliver the aforementioned cold air to the outer wall of the aforementioned tool, thereby enhancing the heat treatment effect of the tool by this utility model. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0041] Figure label:

[0042] 1. Furnace body; 11. Furnace shell; 12. Furnace cover; 13. Furnace chamber; 14. Furnace foundation pit;

[0043] 2. Heating device;

[0044] 3. Thermal insulation components;

[0045] 4. Refrigeration unit; 41. Exhaust fan; 42. First air duct;

[0046] 5. Exhaust vent plate;

[0047] 6. Second air duct;

[0048] 7. Exhaust system; 71. Exhaust fan; 72. First electric actuator; 73. Manual valve;

[0049] 8. Temperature measuring device;

[0050] 9. Pillar;

[0051] 10. Anti-collision rings;

[0052] 15. Air guide plate;

[0053] 16. Fasteners;

[0054] A1, First direction. Detailed Implementation

[0055] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0056] Example 1

[0057] As attached Figure 1 As shown, this utility model discloses a heat treatment temperature-controlled cooling furnace for processing knives. It mainly includes: a furnace body 1, a heating device 2, a cooling device 4, a second air duct 6, a temperature measuring device 8, and a guide plate 15. In use, the knife to be processed is first placed inside the furnace body 1, where a retaining element (not shown) inside the furnace body 1 holds the knife against its outer wall. Then, the furnace cover 12 at the top of the furnace body 1 is closed. Next, the heating device 2 starts working, and the temperature inside the furnace body 1 gradually rises. During this process, the temperature measuring device 8 monitors the temperature of the knife. Once the temperature reaches a set threshold, it is kept at a certain temperature for a certain period according to the heat treatment requirements before the cooling device 4 is activated. At this time, the cooling device 4 introduces outside air into the guide plate 15, which can evenly cool the knife. During this process, the hot air generated inside the furnace body 1 flows out through the second air duct 6. After a period of time, when the knife meets the relevant requirements, the furnace cover 12 on the furnace body 1 is removed, and the knife is taken out, thus achieving the purpose of processing the knife.

[0058] The specific structure of the heat treatment temperature-controlled cooling furnace is as follows: it includes a furnace body 1, with a furnace shell 11 on the outer wall and a furnace cover 12 on the top. A furnace chamber 13 is located inside the furnace body 1. A heating device 2 is installed inside the furnace chamber 13. A cooling device 4 is installed on the furnace body 1, with an air outlet. A second air duct 6 is located at the bottom of the furnace body 1. A temperature measuring device 8 is installed inside the furnace chamber 13. Furthermore, a guide plate 15 is connected to the air outlet of the cooling device 4. This invention integrates the heating and cooling components of the prior art into a single device, thereby improving convenience.

[0059] Using the above-mentioned heat treatment temperature-controlled cooling furnace, as long as the tool to be treated is placed in the furnace chamber 13, the furnace cover 12 is closed, and the corresponding temperature threshold is set according to one's own needs, the tool that meets the corresponding requirements can be obtained in the end, thereby avoiding the problem of the tool to be treated needing to be repeatedly switched between heating and cooling equipment in the prior art.

[0060] In a specific application scenario, the furnace shell 11 covers the outer wall and bottom of the furnace body 1, and the top of the furnace body 1 is open. The furnace cover 12 at the top of the furnace body 1 can isolate the furnace chamber 13 from the external environment. The furnace cover 12 is generally lifted by an electric screw or hydraulic cylinder. The lifting position of the screw is equipped with a limit switch. Only after the furnace cover 12 is lowered to the designated position and the limit switch is pressed can the heating device 2 in the furnace chamber 13 be powered on for heating. In order to reduce the weight of the furnace cover 12, the insulation material of the furnace cover 12 is generally made of a full fiber module structure. In addition, the furnace cover 12 is generally equipped with a furnace cover lifting button (not shown in the figure) for easy operation by the user without the need for assistance from other people to operate the lifting of the furnace cover 12. Under normal circumstances, several abutments are provided on the inner wall of the furnace chamber 13. This design makes it difficult for the knives in the furnace chamber 13 to tilt under the action of external force.

[0061] In a specific application scenario, the heating device 2 is installed on the inner wall of the furnace chamber 13. Normally, the heating device 2 is electrically connected to a temperature control instrument (not shown in the figure). The temperature control instrument can control the working state of the heating device 2, so that the heating device 2 converts electrical energy into heat energy, thereby increasing the temperature inside the furnace chamber 13.

[0062] To maintain the temperature of the furnace chamber 13, a heat insulation component 3 is installed between the heating device 2 and the inner wall of the furnace chamber 13. In a specific application scenario, the heat insulation component 3 is generally composed of one or more of lightweight refractory bricks, aluminosilicate fibers, and asbestos boards; the heating device 2 is mounted on the heat insulation component 3; alternatively, the heating device 2 can be a resistance band, which can typically be directly hung on the heat insulation component 3. In use, the furnace lid 12 is first closed, and then the heating device 2 is activated to increase the temperature inside the furnace chamber 13; during this process, the heat insulation component 3 reduces heat loss from the furnace chamber 13, thereby achieving the purpose of maintaining the temperature of the furnace chamber 13.

[0063] In a specific application scenario, the refrigeration device 4 installed on the furnace body 1 typically includes an induced draft fan 41 and a first air duct 42. The induced draft fan 41 in the refrigeration device 4 is located outside the furnace body 1, and the induced draft fan 41 is generally electrically connected to the aforementioned temperature control instrument; in addition, the induced draft fan 41 can also be electrically connected to a second electric actuator (not shown in the figure) that controls the induced draft fan 41, and the second electric actuator is electrically connected to the temperature control instrument; wherein, a through hole is opened on the left side of the furnace body 1; the right end of the first air duct 42 passes through the through hole, and the right end of the first air duct 42 is connected to the air inlet end of the air guide plate 15; the left end of the first air duct 42 is located outside the furnace body 1, and the left end of the first air duct 42 is connected to the induced draft fan 41; in addition, the user can set multiple induced draft fans 41 and equip them with a corresponding number of first air ducts 42 according to their own needs. At the same time, the corresponding positions of the furnace body 1 need to be opened with corresponding through holes, the specific details of which will not be elaborated here. When the induced draft fan 41 is working, the cold air from the outside enters the air guide plate 15 from the first air duct 42; then, the cold air runs out from the air guide plate 15, and the airflow in the heat treatment temperature control cooling furnace generally moves along the first direction A1. This design can reduce the temperature of the cutlery placed inside the furnace chamber 13.

[0064] The aforementioned air guide plate 15 is roughly elongated, and its length extends in a direction that is generally consistent with the length extension direction of the furnace body 1. (See [reference]). Figure 1 The air guide plate 15 is arranged roughly vertically. To achieve a better airflow guiding effect, the length of the air guide plate 15 is approximately 3 / 4 or more of the length of the furnace body 1.

[0065] To ensure the stability of furnace body 1, as shown in the attached... Figure 1 As shown, the bottom of the furnace body 1 is provided with support columns 9. In a specific application scenario, several support columns 9 are provided at the bottom of the furnace body 1, and the upper end of the support column 9 is connected to the lower outer surface of the furnace body 1. This design allows the furnace body 1 to be stably positioned above the preset position, thereby ensuring the stability of the furnace body 1 structure. Of course, users can adjust the number of support columns 9 accordingly during implementation, as long as it ensures that the furnace body 1 is stably positioned above the preset position.

[0066] In a specific application scenario, the air inlet of the second air duct 6 enters the interior of the furnace chamber 13 from the bottom of the furnace body 1, and the air outlet of the second air duct 6 is located outside the furnace body 1. Typically, the user will set up a furnace pit 14 at a certain location, and the furnace body 1 can be placed inside the furnace pit 14. The second air duct 6 extends upward from the bottom of the furnace body 1 along the inner wall of the furnace pit 14, and the air outlet of the second air duct 6 is located outside the furnace pit 14. During use, the airflow inside the furnace chamber 13 generally moves along the first direction A1. The airflow flows in from the air inlet of the second air duct 6; then, the airflow moves towards the air outlet of the second air duct 6, and finally flows out from the second air duct 6, thereby expelling the hot air inside the furnace chamber 13.

[0067] In a specific application scenario, the furnace chamber 13 is equipped with two temperature measuring devices 8, as shown in the attached diagram. Figure 1 As shown, one temperature measuring device is positioned near the lower part of the furnace chamber 13, and another is positioned near the upper part of the furnace chamber 13. Of course, the number and position of these temperature measuring devices 8 can be adjusted according to the user's needs, and the details are not elaborated here. Furthermore, these temperature measuring devices 8 are generally electrically connected to the aforementioned temperature control instrument. In use, the temperature measuring device 8 directly contacts the cutting tool, and the temperature of the cutting tool can be transmitted to the temperature control instrument in real time. Then, the temperature control instrument can adjust the power of the heating device 2 or the induced draft fan 41 as needed, thereby providing a suitable environment for processing the cutting tool. Additionally, the temperature measuring device 8 needs to be removed each time the cutting tool enters or exits the furnace chamber 13; when the cutting tool is placed back into the furnace chamber 13, the temperature measuring device 8 is placed inside the furnace chamber 13, allowing it to contact the cutting tool, thus achieving real-time monitoring and temperature control of the heat treatment temperature-controlled cooling furnace. Furthermore, the temperature measuring device 8 can be a thermocouple.

[0068] In a specific application scenario, the interior of the furnace 13 is vertically equipped with air guide plates 15, as shown in the attached figure. Figure 1As shown, the air inlet end of the middle left side of the air guide plate 15 is connected to the air outlet end of the first air duct 42; the air guide plate 15 generally has several fan blades (not shown in the figure) inside, and several air outlets are opened on the right side of the air guide plate 15. The air outlets are positioned opposite to the fan blades, so that the air generated by the fan blades can flow out through the air outlets; of course, the number of fan blades and air outlets in the air guide plate 15 can be adjusted appropriately according to the user's needs, and the relevant details will not be elaborated here; usually, multiple fasteners 16 are provided on the side of the air guide plate 15 near the inner wall of the furnace 13, and the fasteners 16 are fastened to the inner wall of the furnace 13. The fasteners 16 and the insulation components 3 are spaced apart, which allows the air guide plate 15 to be fixed inside the furnace chamber 13. The number of fasteners 16 can be adjusted according to the user's needs, and the relevant details are not elaborated here. When in use, the induced draft fan 41 is started, which introduces external cold air into the air guide plate 15. The cold air can drive the fan blades inside the air guide plate 15 to rotate. The airflow generated by the fan blades can run out from the corresponding air outlet. This design can cool different positions of the knives placed in the furnace chamber 13, thereby achieving a uniform cooling effect.

[0069] Example 2

[0070] As attached Figure 1 As shown, this utility model discloses a heat treatment temperature-controlled cooling furnace for improving the working performance of the aforementioned embodiment 1. In addition to the components in embodiment 1, it also includes an exhaust perforated plate 5, an exhaust device 7, and a crash ring 10. The exhaust perforated plate 5 allows hot air from the furnace chamber 13 to escape evenly from the second air duct 6, thereby enhancing the effect of uniform cooling of the tools inside the furnace chamber 13. The exhaust device 7 can accelerate the escape speed of the hot air from the second air duct 6, thereby enhancing the cooling effect of the tools placed inside the furnace chamber 13. The crash ring 10 can prevent damage to the inner wall of the furnace chamber 13 by the tools. This embodiment improves the working performance of the aforementioned embodiment 1.

[0071] In a specific application scenario, an exhaust vent plate 5 is located at the bottom of the furnace chamber 13. The outer wall of the exhaust vent plate 5 is connected to the inner wall of the furnace chamber 13, and three holes are provided on the exhaust vent plate 5. Simultaneously, three second air ducts 6 are provided at the bottom of the furnace chamber 13, and these second air ducts 6 are adapted to the holes. Normally, the cutting tools in this heat treatment temperature-controlled cooling furnace are placed at the top of the exhaust vent plate 5. Of course, the user can divide the air inlet end of the second air duct 6 into three branch pipes, which pass through the three holes on the exhaust vent plate 5; the specific details are not elaborated here. During use, the hot air inside the furnace chamber 13 moves to the bottom of the furnace chamber 13, and this hot air can escape from the second air ducts 6 on the exhaust vent plate 5. This design enhances the effect of uniform cooling of the cutting tools placed inside the furnace chamber 13.

[0072] In a specific application scenario, an exhaust device 7 is installed near the air outlet of the second air duct 6. The exhaust device 7 mainly includes an exhaust fan 71 and a first electric actuator 72. Normally, the exhaust fan 71 is electrically connected to the first electric actuator 72, and the first electric actuator 72 is installed on the second air duct 6. The first electric actuator 72 is electrically connected to the aforementioned temperature control instrument.

[0073] Furthermore, a manual valve 73 is typically installed on the second air duct 6. This manual valve 73 is used to forcibly shut down the exhaust fan 71, and it is spaced apart from the first electric actuator 72. Additionally, the exhaust fan 71, the first electric actuator 72, and the manual valve 73 are all located above the furnace pit 14. When cooling of the tools inside the furnace chamber 13 is required, the first electric actuator 72 activates the exhaust fan 71, which accelerates the escape of hot air from the furnace chamber 13 through the second air duct 6. If the first electric actuator 72 malfunctions, preventing the exhaust fan 71 from stopping, the user can forcibly shut down the exhaust fan 71 by operating the manual valve 73. The exhaust fan 71 enhances the cooling effect on the tools placed inside the furnace chamber 13.

[0074] In a specific application scenario, as shown in the appendix Figure 1 As shown, the inner wall of the furnace chamber 13 is provided with three anti-collision rings 10; of course, the number of anti-collision rings 10 can be adjusted according to the user's needs. When using the knife, it may hit the anti-collision rings 10 when the knife is put into the furnace chamber 13 or when the knife is taken out of the furnace chamber 13, but will not hit the inner wall of the furnace chamber 13, thereby reducing the possibility of damage to the inner wall of the furnace chamber 13.

[0075] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” and “the” used in this embodiment may also include the plural forms. It should be further understood that the term “comprising” as used in this embodiment means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connections or wireless coupling. The term “and / or” as used herein includes all or any units and all combinations of one or more associated listed items.

Claims

1. A heat treatment temperature-controlled cooling furnace, characterized in that, include: The furnace body (1) has a furnace shell (11) on its outer wall, a furnace cover (12) is provided at the top of the furnace body (1), and a furnace chamber (13) is provided inside the furnace body (1). A heating device (2) is provided to increase the temperature of the furnace (13), and the heating device (2) is disposed inside the furnace (13); A refrigeration device (4) is used to reduce the temperature of the furnace (13). The refrigeration device (4) is installed on the furnace body (1) and has an air outlet. The second air duct (6) is used to exhaust the hot air in the furnace (13), and the second air duct (6) is located at the bottom of the furnace body (1); A temperature measuring device (8) is installed inside the furnace (13); in, The air outlet of the refrigeration device (4) is connected to an air guide plate (15).

2. The heat treatment temperature-controlled cooling furnace according to claim 1, characterized in that, The heating device (2) is a resistance band.

3. The heat treatment temperature-controlled cooling furnace according to claim 1, characterized in that, The temperature measuring device (8) is a thermocouple.

4. The heat treatment temperature-controlled cooling furnace according to claim 1, characterized in that, The air guide plate (15) is connected to a fastener (16) on the side near the inner wall of the furnace (13), and one end of the fastener (16) is connected to the inner wall of the furnace (13).

5. The heat treatment temperature-controlled cooling furnace according to claim 4, characterized in that, Also includes: Thermal insulation components (3); The heating device (2) is provided on the heat insulation component (3), the heat insulation component (3) is provided on the inner wall of the furnace (13), and the heat insulation component (3) and the fastener (16) are spaced apart.

6. The heat treatment temperature-controlled cooling furnace according to claim 1, characterized in that, The refrigeration device (4) includes: An induced draft fan (41) is installed on one side of the furnace shell (11); The first air duct (42) is connected at one end to the induced draft fan (41), and the other end of the first air duct (42) is inserted into the furnace (13), and the other end of the first air duct (42) is connected to the air guide plate (15).

7. The heat treatment temperature-controlled cooling furnace according to claim 1, characterized in that, Also includes; An exhaust vent plate (5) is disposed at the bottom of the furnace (13), and a second air duct (6) passes through the exhaust vent plate (5); and / or The exhaust device (7) is located near the air outlet of the second air duct (6).

8. The heat treatment temperature-controlled cooling furnace according to claim 7, characterized in that, The exhaust device (7) includes: An exhaust fan (71) is used to exhaust the hot air inside the furnace (13); The first electric actuator (72) is used to control the working state of the exhaust fan (71), and the first electric actuator (72) is installed on the second air duct (6).

9. The heat treatment temperature-controlled cooling furnace according to claim 8, characterized in that, The exhaust device (7) also includes: Manual valve (73); The manual valve (73) is used to forcibly shut down the exhaust fan (71), and the manual valve (73) is installed on the second air duct (6).

10. The heat treatment temperature-controlled cooling furnace according to claim 1, characterized in that, Also includes: A collision protection ring (10) is provided on the inner wall of the furnace chamber (13).

Images