Rapid cooling integrated workpiece heat treatment device

Abstract

The utility model discloses a kind of integrated workpiece heat treatment devices of rapid cooling, it includes heating assembly, cooling assembly and flow guide component.Heating assembly is equipped with heating cavity and heating element;Cooling assembly is separated with heating cavity by sliding door, and injection head is uniformly arranged and cooperates with flow guide component to optimize cooling medium flow path;Temperature monitoring component and control system realize accurate temperature control;The device is integrated design and optimizes cooling path, solves the problem of uneven cooling of traditional device, and sliding door realizes quick switching, reduces process cycle;The setting of heat insulation layer and fin improves energy efficiency ratio, ensures that workpiece avoids residual stress generation in rapid cooling, improves heat treatment efficiency and quality.

Description

Technical Field

[0001] This utility model relates to the technical field of heat treatment equipment, and in particular to a rapid cooling integrated workpiece heat treatment device. Background Technology

[0002] Existing heat treatment equipment for workpieces largely relies on natural cooling or simple air cooling for the cooling process. For example, in conventional air-cooled heat treatment equipment, the cooling rate is limited by ambient temperature and airflow, and the cooling efficiency decreases significantly at high temperatures. With slow cooling rates, the microstructure and properties of the workpiece may not reach their ideal state, while excessively fast cooling rates can lead to significant residual stress within the workpiece. Therefore, traditional cooling methods struggle to effectively shorten the process cycle while ensuring quality.

[0003] Traditional heat treatment equipment has several drawbacks. First, increased cooling rates often result in overcooling of the workpiece surface or excessively large localized temperature differences. Second, during rapid cooling, the flow path and uniformity of the cooling medium are difficult to control precisely, easily leading to uneven cooling of the workpiece. Furthermore, the coordination between the cooling and heating systems in traditional equipment is poor, requiring additional time for adjustment during switching. Therefore, the overall process cycle remains long, which is not conducive to high-efficiency production. The aforementioned equipment fails to adequately consider the balance between cooling efficiency and workpiece quality in its rapid cooling design, thus limiting its applicability. Utility Model Content

[0004] The purpose of this invention is to provide a rapid cooling integrated workpiece heat treatment device to overcome the shortcomings of the existing technology.

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

[0006] A rapid cooling integrated workpiece heat treatment device includes a heating assembly, a cooling assembly, and a flow guiding assembly. The heating assembly includes a heating chamber and heating elements disposed inside the heating chamber. Multiple positioning grooves for fixing the workpiece are evenly distributed on the inner wall of the heating chamber. The cooling assembly includes a cooling chamber, a cooling medium channel, and a spray head. The cooling chamber and the heating chamber are separated by a partition. A sliding door is provided on the partition, and the sliding door is controlled to open and close by a drive mechanism. The flow guiding assembly includes a guide plate and a flow guiding channel. The guide plate is disposed inside the cooling chamber, and the flow guiding channel passes through the guide plate and communicates with the spray head.

[0007] One end of the cooling medium channel is connected to an external cooling medium supply source, and the other end is connected to the spray head. The spray head is evenly distributed on the top and side walls of the cooling chamber, and the nozzle direction of the spray head forms an angle of 30° to 60° with the workpiece surface. A return port is provided at the bottom of the cooling chamber, and the return port is connected to the cooling medium recovery device through a return pipe. A filter screen is installed in the return pipe to filter impurities in the cooling medium.

[0008] Furthermore, the drive mechanism includes a drive motor, a transmission gear set, and a slide rail. The drive motor is connected to the sliding door via the transmission gear set. Slider blocks are respectively installed on both sides of the sliding door, and the sliders are embedded in the slide rail and slide along the slide rail. The opening and closing action of the sliding door is realized by the drive motor through the transmission gear set. The closed state of the sliding door is detected by a limit switch, which is electrically connected to the control system.

[0009] The guide vanes have a multi-layered structure, with each layer fixed together by bolts. The surface of each guide vane has multiple guide holes, the diameter of which gradually increases from the side closest to the nozzle towards the side furthest from the nozzle. A flow regulating valve is installed at the inlet end of the flow channel, and its opening is controlled by a stepper motor, which is electrically connected to the control system.

[0010] It also includes a temperature monitoring component, which comprises multiple temperature sensors, each positioned within both the heating and cooling chambers. The signal outputs of the temperature sensors are connected to the control system. The control system adjusts the power of the heating element or the flow rate of the cooling medium based on the feedback signals from the temperature sensors.

[0011] The inner wall of the cooling chamber is equipped with a heat insulation layer made of high-temperature resistant material, with a thickness of 10mm to 20mm. The outer wall of the cooling chamber is equipped with heat sinks, which are fixed to the outer wall of the cooling chamber by screws, and the surface of the heat sinks is coated with a thermally conductive coating.

[0012] Both the heating and cooling chambers are equipped with support feet at their bottom, which are fixed to the bottom of the chambers by welding. The height of the support feet is adjustable to ensure the stability of the device under different ground conditions. An observation window made of high-temperature resistant glass is located at the top of the heating chamber, and the edge of the observation window is sealed to the heating chamber with a sealing strip.

[0013] A pressure sensor is installed at the outlet end of the cooling medium channel. The signal output of the pressure sensor is connected to the control system, which adjusts the supply pressure of the cooling medium based on the feedback signal from the pressure sensor. A check valve is installed at the inlet end of the cooling medium channel to prevent backflow of the cooling medium.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention integrates the heating and cooling components into a single unit and optimizes the flow path of the cooling medium using a flow guiding component. This ensures that the cooling medium evenly covers the workpiece surface, avoiding the uneven cooling problem found in traditional devices. The sliding door design enables rapid switching between heating and cooling stages, reducing wasted time in the process cycle. The combination of the temperature monitoring component and control system allows for precise control of the heating and cooling processes, ensuring that the workpiece does not develop residual stress due to excessive temperature differences during rapid cooling. The insulation layer and heat sink effectively reduce heat transfer to the outside, improving the energy efficiency ratio of the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the internal structure of the cooling chamber.

[0018] Figure 3 This is a magnified view of a portion of the sliding door drive mechanism.

[0019] Figure 4 This is a schematic diagram of the modular connection of the temperature monitoring components and control system.

[0020] The attached figures are labeled as follows:

[0021] 1. Heating chamber; 2. Cooling chamber; 3. Sliding door; 4. Drive motor; 5. Transmission gear set; 6. Slide rail; 7. Limit switch; 8. Guide plate; 9. Injector head; 10. Return port; 11. Temperature sensor; 12. Control system; 13. Insulation layer; 14. Heat sink; 15. Observation window; 16. Flow regulating valve; 17. Pressure sensor; 18. Check valve. Detailed Implementation

[0022] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. When the number of elements is referred to as "multiple," it can be any number of two or more. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings:

[0026] A rapid cooling integrated workpiece heat treatment device, the overall structure of which is as follows: Figure 1 As shown. The heating chamber 1 and the cooling chamber 2 are separated by a partition. A sliding door 3 is provided on the partition, and the opening and closing of the sliding door 3 is controlled by a drive mechanism. The drive mechanism includes a drive motor 4, a transmission gear set 5, and a slide rail 6. The drive motor 4 is connected to the sliding door 3 through the transmission gear set 5. Slider blocks are provided on both sides of the sliding door 3. The sliders are embedded in the slide rail 6 and slide along the slide rail 6. The closed state of the sliding door 3 is detected by a limit switch 7, which is fixed to the partition and electrically connected to the control system 12. Multiple positioning grooves are evenly distributed on the inner wall of the heating chamber 1 for fixing the workpiece to be processed. A flow guiding assembly is provided in the cooling chamber 2, including a flow guiding plate 8 and a flow guiding channel. The flow guiding channel passes through the flow guiding plate 8 and communicates with the spray head 9. The spray head 9 is evenly arranged on the top and side walls of the cooling chamber 2, and the nozzle direction of the spray head 9 forms an angle of 30° to 60° with the surface of the workpiece. The bottom of the cooling chamber 2 is provided with a return port 10, which is connected to the cooling medium recovery device through a return pipe. A filter screen is provided in the return pipe to filter impurities in the cooling medium.

[0027] The specific structure inside cooling cavity 2 is as follows: Figure 2As shown. The guide plate 8 has a multi-layer structure, with each layer of guide plate 8 fixedly connected by bolts. Multiple guide holes are provided on the surface of the guide plate 8, with the diameter of the guide holes gradually increasing from the side closer to the nozzle 9 to the side farther away from the nozzle 9. A flow regulating valve 16 is provided at the inlet end of the guide channel. The flow regulating valve 16 is controlled by a stepper motor, which is electrically connected to the control system 12. One end of the cooling medium channel is connected to an external cooling medium supply source, and the other end is connected to the nozzle 9. A pressure sensor 17 is provided at the outlet end of the cooling medium channel. The signal output end of the pressure sensor 17 is connected to the control system 12, and the control system 12 adjusts the supply pressure of the cooling medium based on the feedback signal from the pressure sensor 17. A one-way valve 18 is also provided at the inlet end of the cooling medium channel to prevent backflow of the cooling medium. A heat insulation layer 13 is provided on the inner wall of the cooling chamber 2. The heat insulation layer 13 is made of high-temperature resistant material with a thickness of 10mm to 20mm. The outer wall of the cooling cavity 2 is provided with heat sink 14, which is fixed to the outer wall of the cooling cavity 2 by screws, and the surface of the heat sink 14 is coated with a thermally conductive coating.

[0028] A partial enlarged view of the drive mechanism of sliding door 3 is shown below. Figure 3 As shown. The drive motor 4 is fixed to the partition. The transmission gear set 5 includes a driving gear and a driven gear. The driving gear is connected to the output shaft of the drive motor 4, and the driven gear meshes with the rack on the sliding door 3. The slide rail 6 is fixed to the partition. The sliders on both sides of the sliding door 3 are embedded in the slide rail 6 and slide along the slide rail 6. The limit switch 7 is fixed to the partition and is used to detect the closed state of the sliding door 3 and transmit the signal to the control system 12. The opening and closing action of the sliding door 3 is realized by the drive motor 4 through the transmission gear set 5. When the drive motor 4 is started, the driving gear drives the driven gear to rotate, thereby pushing the sliding door 3 to move along the slide rail 6 to complete the opening and closing action.

[0029] A modular connection diagram of the temperature monitoring components and control system is shown below. Figure 4 As shown. The temperature monitoring component includes multiple temperature sensors 11, which are respectively disposed in the heating chamber 1 and the cooling chamber 2. The temperature sensors 11 in the heating chamber 1 are fixed to the inner wall of the chamber, and the temperature sensors 11 in the cooling chamber 2 are fixed to the guide plate 8. The signal output terminals of the temperature sensors 11 are connected to the control system 12, which adjusts the power of the heating element or the flow rate of the cooling medium according to the feedback signals from the temperature sensors 11. An observation window 15 is provided on the top of the heating chamber 1. The observation window 15 is made of high-temperature resistant glass, and the edge of the observation window 15 is sealed to the heating chamber 1 by a sealing strip. Support feet are provided at the bottom of both the heating chamber 1 and the cooling chamber 2. The support feet are fixed to the bottom of the chamber by welding, and the height of the support feet is adjustable to ensure the stability of the device under different ground conditions.

[0030] In actual operation, the workpiece to be processed is first placed in the positioning slot within the heating chamber 1, and the heating element is activated to heat the workpiece. During heating, the temperature sensor 11 within the heating chamber 1 monitors the temperature inside the chamber in real time and transmits the signal to the control system 12. The control system 12 adjusts the power of the heating element based on the feedback signal from the temperature sensor 11 to ensure the workpiece is heated to the predetermined temperature. Once the workpiece is heated, the drive motor 4 starts, pushing the sliding door 3 along the slide rail 6 via the transmission gear set 5, opening the opening on the partition, allowing the workpiece to enter the cooling chamber 2 from the heating chamber 1. The closing state of the sliding door 3 is detected by the limit switch 7. When the sliding door 3 is fully open, the limit switch 7 transmits a signal to the control system 12, which then activates the cooling medium supply source. The cooling medium enters the spray head 9 through the cooling medium channel, is sprayed out from the spray head 9, and covers the surface of the workpiece. The nozzle direction of the spray head 9 forms an angle of 30° to 60° with the workpiece surface, ensuring that the cooling medium can uniformly cover the workpiece surface. During the cooling process, the temperature sensor 11 inside the cooling chamber 2 monitors the temperature inside the chamber in real time and transmits the signal to the control system 12. The control system 12 adjusts the flow rate of the cooling medium based on the feedback signal from the temperature sensor 11 to ensure that the workpiece is rapidly cooled to the predetermined temperature. The cooling medium enters the return pipe through the return port 10, and after being filtered by the filter screen, it returns to the cooling medium recovery device.

[0031] The guide plate 8 inside the cooling chamber 2 optimizes the flow path of the cooling medium through guide holes. The diameter of the guide holes gradually increases from the side closer to the nozzle 9 to the side farther away from the nozzle 9, allowing the cooling medium to be evenly distributed on the workpiece surface. The flow regulating valve 16 is controlled by a stepper motor. The stepper motor adjusts the opening of the flow regulating valve 16 according to the instructions of the control system 12, thereby precisely controlling the flow rate of the cooling medium. The pressure sensor 17 monitors the pressure in the cooling medium channel in real time and transmits the signal to the control system 12. The control system 12 adjusts the supply pressure of the cooling medium according to the feedback signal from the pressure sensor 17 to ensure a stable supply of the cooling medium. The one-way valve 18 prevents the cooling medium from flowing back, ensuring that the flow direction of the cooling medium is always from the cooling medium supply source to the nozzle 9.

[0032] A heat insulation layer 13 is installed on the inner wall of the cooling chamber 2 to reduce heat transfer to the outside and improve the energy efficiency ratio of the device. A heat sink 14 is installed on the outer wall of the cooling chamber 2, and its thermally conductive coating enhances heat dissipation, further reducing the temperature of the cooling chamber 2. The height of the support legs can be adjusted using adjusting bolts to adapt to different ground conditions and ensure the stability of the device. An observation window 15 is located at the top of the heating chamber 1, allowing operators to observe the heating status of the workpiece in real time and ensure the smooth progress of the heating process.

[0033] This invention integrates the heating and cooling components into one unit and optimizes the flow path of the cooling medium using a flow guiding component, ensuring uniform coverage of the workpiece surface and avoiding the uneven cooling problem found in traditional devices. The sliding door 3 enables rapid switching between heating and cooling stages, reducing wasted time in the process cycle. The combination of the temperature monitoring component and the control system 12 enables precise control of the heating and cooling processes, ensuring that the workpiece does not develop residual stress due to excessive temperature differences during rapid cooling. The insulation layer 13 and heat sink 14 effectively reduce heat transfer to the outside, improving the energy efficiency ratio of the device.

[0034] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. For those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A rapid cooling integrated workpiece heat treatment apparatus, characterized by: It includes a heating component, a cooling component, and a flow guiding component; the heating component includes a heating chamber and a heating element disposed inside the heating chamber, and the inner wall of the heating chamber has multiple positioning grooves evenly distributed for fixing the workpiece; the cooling component includes a cooling chamber, a cooling medium channel, and a spray head, the cooling chamber and the heating chamber are separated by a partition, and a sliding door is provided on the partition, the sliding door is controlled to open and close by a drive mechanism; the flow guiding component includes a flow guiding plate and a flow guiding channel, the flow guiding plate is disposed inside the cooling chamber, and the flow guiding channel passes through the flow guiding plate and communicates with the spray head.

2. The rapid cooling integrated workpiece heat treatment device as described in claim 1, characterized in that: One end of the cooling medium channel is connected to an external cooling medium supply source, and the other end is connected to the spray head. The spray head is evenly arranged on the top and side walls of the cooling chamber, and the nozzle direction of the spray head forms an angle of 30° to 60° with the workpiece surface. A return port is provided at the bottom of the cooling chamber. The return port is connected to the cooling medium recovery device through a return pipe. A filter screen is installed in the return pipe.

3. The rapid cooling integrated workpiece heat treatment device as described in claim 1, characterized in that: The drive mechanism includes a drive motor, a transmission gear set, and a slide rail. The drive motor is connected to the sliding door via the transmission gear set. Slider blocks are provided on both sides of the sliding door. The slider blocks are embedded in the slide rail and slide along the slide rail. The closed state of the sliding door is detected by a limit switch, which is electrically connected to the control system.

4. The rapid cooling integrated workpiece heat treatment device as described in claim 1, characterized in that: The guide plate has a multi-layer structure, with each layer of guide plate fixedly connected by bolts. The surface of the guide plate is provided with multiple guide holes, and the diameter of the guide holes gradually increases from the side closer to the nozzle to the side farther away from the nozzle. A flow regulating valve is provided at the inlet end of the guide channel. The flow regulating valve is controlled by a stepper motor, and the stepper motor is electrically connected to the control system.

5. The rapid cooling integrated workpiece heat treatment device as described in claim 1, characterized in that: It also includes a temperature monitoring component, which includes multiple temperature sensors. The temperature sensors are respectively installed in the heating chamber and the cooling chamber, and the signal output terminals of the temperature sensors are connected to the control system.

6. The rapid cooling integrated workpiece heat treatment device as described in claim 1, characterized in that: The inner wall of the cooling chamber is provided with a heat insulation layer, which is made of high temperature resistant material and has a thickness of 10mm to 20mm. The outer wall of the cooling chamber is provided with heat sinks, which are fixed to the outer wall of the cooling chamber by screws and have a thermally conductive coating on their surface.

7. The rapid cooling integrated workpiece heat treatment device as described in claim 1, characterized in that: Both the heating chamber and the cooling chamber are equipped with support feet at the bottom, which are fixed to the bottom of the chamber by welding. The height of the support feet is adjustable. The top of the heating chamber is equipped with an observation window made of high-temperature resistant glass. The edge of the observation window is sealed to the heating chamber by a sealing strip.

8. The rapid cooling integrated workpiece heat treatment device as described in claim 1, characterized in that: A pressure sensor is installed at the outlet end of the cooling medium channel, and the signal output end of the pressure sensor is connected to the control system; a one-way valve is installed at the inlet end of the cooling medium channel.

9. The rapid cooling integrated workpiece heat treatment device as described in claim 1, characterized in that: The opening and closing action of the sliding door is achieved by the drive motor through the transmission gear set. The closed state of the sliding door is detected by the limit switch, which is electrically connected to the control system.

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