Heating furnace structure and heat treatment aging furnace with same

Abstract

The utility model discloses a kind of heating furnace structure and heat-treatment aging furnace of heating device with it, it is related to automatic heat treatment technical field, and it includes: outer box;Motor, the motor has motor shaft, the motor shaft is connected with impeller;Furnace chamber frame, the furnace chamber frame includes the furnace chamber top plate of upside and the furnace chamber side plate of left and right two sides, upper air guide cavity is left between the furnace chamber top plate upside and the outer box top wall, side air guide cavity is left between the furnace chamber side plate outer side wall and the outer box inner side wall, the furnace chamber top plate is provided with air outlet, the furnace chamber top plate upside is provided with air baffle, the furnace chamber side plate is provided with air inlet;Heater;When the airflow of heating cavity passes through air outlet and enters upper air guide cavity, the air baffle in upper air guide cavity guides the airflow entering upper air guide cavity, so that airflow can be evenly entered into side air guide cavity, ensure that each position in side air guide cavity can be evenly heated by heater, ensure that the thermal reaction effect of workpiece is more reliable.

Description

Technical Field

[0001] This utility model relates to the field of automated heat treatment technology, and in particular to a heating furnace structure and a heat treatment aging furnace having the same heating element. Background Technology

[0002] Heat treatment in a heating furnace is a common process in automated production. For example, aging heat treatment refers to a heat treatment process in which alloy workpieces, after solution treatment, cold plastic deformation, or casting, are placed in a high temperature. The purpose of aging treatment is to eliminate internal stress in the workpiece, stabilize its microstructure and dimensions, and improve its mechanical properties.

[0003] Currently, in actual use, aging furnaces suffer from uneven temperatures at different locations within the furnace, resulting in uneven heating of the workpieces and affecting the aging treatment effect. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a heating furnace structure and a heat treatment aging furnace having the same structure.

[0005] The heating furnace structure according to a first aspect embodiment of the present invention includes: an outer casing having a cavity; a motor located outside the outer casing, the motor having a motor shaft connected to an impeller; a furnace frame located inside the outer casing, the furnace frame having a heating cavity, the furnace frame including an upper furnace top plate and left and right furnace side plates, an upper air guide cavity between the upper side of the furnace top plate and the top wall of the outer casing, a side air guide cavity between the outer side wall of the furnace side plate and the inner side wall of the outer casing, the upper air guide cavity communicating with the side air guide cavity, an air outlet hole opened on the furnace top plate, the impeller covering the air outlet hole, an air guide plate provided on the upper side of the furnace top plate, the air guide plate being located inside the upper air guide cavity, an air inlet hole opened on the furnace side plate; and a heater located inside the side air guide cavity.

[0006] According to some embodiments of this utility model, the air guide plate is an inclined plate structure that extends obliquely from the left front side to the right rear side or from the right front side to the left rear side. The air guide plate divides the upper air guide cavity into a left branch channel and a right branch channel. Both the left branch channel and the right branch channel are connected to the air outlet. The left branch channel is connected to the upper side of the side air guide cavity on the left side, and the right branch channel is connected to the upper side of the side air guide cavity on the right side.

[0007] According to some embodiments of this utility model, the impeller is a centrifugal impeller, the lower side of the impeller has a centrifugal impeller air inlet, the side wall of the impeller has a centrifugal impeller air outlet, the impeller covers the upper side of the air outlet, the centrifugal impeller air inlet is connected to the air outlet, and the centrifugal impeller air outlet is connected to the left branch channel and the right branch channel.

[0008] According to some embodiments of the present invention, the outer casing includes an outer panel layer on the outside and an inner insulation layer on the inside; the insulation layer includes a plurality of insulation bricks made of high-temperature resistant cement, and the gaps between the insulation bricks and the gaps between the insulation bricks and the inner wall of the outer panel layer are filled with insulation cotton.

[0009] According to some embodiments of this utility model, an upper slide rail and a lower slide rail are provided inside the outer box. The lower side of the upper slide rail has an upper slide rail groove, and the upper side of the lower slide rail has a lower slide rail groove. The upper slide rail groove and the lower slide rail groove extend in the front-back direction. The upper and lower ends of the furnace side plate are respectively slidably connected to the upper slide rail groove and the lower slide rail groove. The upper side of the upper slide rail abuts against the lower side of the furnace top plate.

[0010] According to some embodiments of the present invention, the heater has a heater terminal, and a ceramic tube is provided on the side wall of the outer casing, with the heater terminal extending outward through the ceramic tube.

[0011] According to some embodiments of this utility model, a temperature measuring instrument is provided on the furnace frame, and the temperature measuring instrument can detect the heating temperature inside the heating chamber.

[0012] The heating furnace structure according to the embodiment of this utility model has at least the following technical effects: 1. When the airflow in the heating chamber enters the upper air guide chamber through the air outlet, the air guide plate in the upper air guide chamber guides the airflow into the upper air guide chamber, so that the airflow can enter the side air guide chamber evenly, ensuring that all parts in the side air guide chamber can be heated evenly by the heater, making the heating effect of the heating chamber more uniform, and thus ensuring that the thermal reaction effect of the workpiece is more reliable. 2. The air guide plate adopts an inclined plate structure, extending obliquely to the left front or right front side. The air guide plate acts as a divider, dividing the upper air guide cavity into at least two parts: a left branch channel and a right branch channel. This allows the airflow drawn into the upper air guide cavity to be more evenly distributed into the side air guide cavity, achieving a good air guiding effect. This ensures that the airflow in the side air guide cavity passes through all positions of the heater and flows over each heater, carrying away the heat from the heater and improving heating efficiency. 3. The insulation layer uses a combination of insulation bricks and insulation cotton, which can better exert its insulation performance. The insulation bricks are made of high-temperature resistant cement, which can significantly improve the overall strength of the outer casing.

[0013] The heat treatment aging furnace of the heater according to the second aspect of the present invention includes the heating furnace structure according to the first aspect of the present invention.

[0014] According to some embodiments of this utility model, a connecting beam is provided above the outer casing, and a space is left between the lower side of the connecting beam and the top wall of the outer casing. The motor is located on the connecting beam, the motor shaft passes through the top wall of the outer casing in the vertical direction, and the impeller is connected to the lower part of the motor shaft.

[0015] According to some embodiments of this utility model, the furnace frame has an opening on its lower side, the outer box has a door on its front side, a guide rail is provided on the bottom wall of the outer box, a frame is provided on the guide rail, the frame can move along the guide rail, and a workpiece can be placed on the frame.

[0016] The heat treatment aging furnace according to the embodiment of this utility model has at least the following beneficial effects: 1. When the airflow in the heating chamber enters the upper air guide chamber through the air outlet, the air guide plate in the upper air guide chamber guides the airflow into the upper air guide chamber, so that the airflow can enter the side air guide chamber evenly, ensuring that all parts in the side air guide chamber can be heated evenly by the heater, making the heating effect of the heating chamber more uniform, and thus ensuring that the thermal reaction effect of the workpiece of the heater is more reliable. 2. The motor shaft drives the impeller via a direct drive, resulting in high transmission efficiency and strong stability; 3. The frame has load-bearing capacity, and various workpieces can be placed on it. The frame can then be pushed along the guide rail to move to the rear and enter the heating chamber, making it convenient to transport the workpieces to the designated location.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] Additional aspects and advantages of this invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a perspective view of the heating element heat treatment aging furnace of this utility model; Figure 2 This is a three-dimensional sectional view of the heating furnace structure of this utility model; Figure 3 This is a perspective view of the furnace frame of this utility model; Figure 4 This is a perspective view of the outer casing of this utility model; Figure 5 This is a three-dimensional view of the insulation layer of this utility model; Figure 6 This is a schematic diagram of the working process of this utility model.

[0019] Figure label: Outer casing 100, outer panel layer 110, insulation layer 120, insulation brick 121, insulation cotton 122, upper slide rail 130, upper slide rail groove 131, lower slide rail 140, lower slide rail groove 141, ceramic tube 150, thermometer 160, connecting beam 170, box door 180, guide rail 190; motor 200, motor shaft 210, impeller 220, centrifugal impeller air inlet 221, centrifugal impeller air outlet 222; furnace frame 300, heating chamber 301, furnace top plate 310, air outlet 311, furnace side plate 320, air inlet 321, air guide plate 330, upper air guide cavity 340, left diversion channel 341, right diversion channel 342, side air guide cavity 350; heater 400, heater terminal 410; frame 500. Detailed Implementation

[0020] 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.

[0021] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, "multiple" means two or more, and "greater than," "less than," "exceeding," etc., are understood to exclude the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0023] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0024] The following is for reference. Figure 1 and Figure 2 The structure of the heating furnace according to an embodiment of the present utility model is described.

[0025] like Figure 1 and Figure 2As shown, the heating furnace structure according to an embodiment of the present invention includes an outer casing 100, a motor 200, a furnace frame 300, and a heater 400.

[0026] The outer casing 100 has a cavity; the motor 200 is located outside the outer casing 100, and the motor 200 has a motor shaft 210 connected to an impeller 220; the furnace frame 300 is located inside the outer casing 100, see reference. Figure 3 The furnace frame 300 has a heating chamber 301 inside. The furnace frame 300 includes an upper furnace top plate 310 and left and right furnace side plates 320. An upper air guide cavity 340 is left between the upper side of the furnace top plate 310 and the top wall of the outer casing 100. A side air guide cavity 350 is left between the outer side wall of the furnace side plate 320 and the inner side wall of the outer casing 100. The upper air guide cavity 340 and the side air guide cavity 350 are connected. The furnace top plate 310 has an air outlet 311. The impeller 220 is covered on the air outlet 311. An air guide plate 330 is provided on the upper side of the furnace top plate 310. The air guide plate 330 is located in the upper air guide cavity 340. The furnace side plate 320 has an air inlet 321. The heater 400 is located in the side air guide cavity 350.

[0027] For example, such as Figure 1 and Figure 2 As shown, the outer casing 100 serves as an outer shell structure and has a cavity. The motor 200 is located outside the outer casing 100 and remains stationary during operation. The motor 200 has a motor shaft 210, which is connected to an impeller 220, enabling the motor 200 to drive the impeller 220 to rotate. The furnace frame 300 is located inside the outer casing 100 and remains stationary within it. The furnace frame 300 contains a heating chamber 301 for placing workpieces for heating. (Refer to...) Figure 3The furnace frame 300 includes an upper furnace top plate 310 and left and right furnace side plates 320, which together form a heating chamber 301. An upper air guide cavity 340 is provided between the upper side of the furnace top plate 310 and the top wall of the outer casing 100, and a side air guide cavity 350 is provided between the outer wall of the furnace side plate 320 and the inner wall of the outer casing 100. The upper air guide cavity 340 and the side air guide cavity 350 are connected to form a continuous air guide space. An air outlet 311 is provided on the furnace top plate 310, which is connected to the upper air guide cavity 340 and the heating chamber 301. An impeller 220 covers the air outlet 311 and is responsible for drawing air from the heating chamber 301. A guide vane 330 is installed on the upper side of the furnace top plate 310. The guide vane 330 is located inside the upper guide cavity 340 and serves to guide the airflow within the upper guide cavity 340. An air inlet 321 is provided on the furnace side plate 320, communicating with the heating cavity 301 and the side guide cavity 350. A heater 400 is located inside the side guide cavity 350 and serves to heat the gas within the aforementioned guide cavity, thereby achieving the heating effect of the heating cavity 301. There may be one or more heaters 400 within the side guide cavity 350.

[0028] In practical work, refer to Figure 6 After the workpiece is fed into the heating chamber 301, the heater 400 and motor 200 are started. The heater 400 generates heat. The heater 400 drives the impeller 220 to rotate. The airflow in the heating chamber 301 passes through the air outlet 311, the upper air guide chamber 340, and the side air guide chamber 350 in sequence. After being heated by the heater 400 in the side air guide chamber 350, the airflow finally re-enters the heating chamber 301 through the air inlet 321, forming a hot air circulation effect and achieving the heating of the workpiece.

[0029] During the above process, when the airflow enters the upper air guide cavity 340 through the air outlet 311, the air guide plate 330 in the upper air guide cavity 340 guides the airflow entering the upper air guide cavity 340, so that the airflow can enter the side air guide cavity 350 evenly, ensuring that all positions in the side air guide cavity 350 can be evenly heated by the heater 400, making the heating effect of the heating cavity 301 more uniform, and thus ensuring that the thermal reaction effect of the workpiece is more reliable.

[0030] It should be noted that the furnace top plate 310 and furnace side plate 320 of the furnace frame 300 can be detachable or integrally formed.

[0031] In addition, a guide plate 330 can also be installed inside the side air guide cavity 350. The guide plate 330 inside the side air guide cavity 350 is vertical, dividing the side air guide cavity 350 into several vertically extending side flow channels. At least one heater 400 is installed in each side flow channel. The above design serves to guide the airflow within the side air guide cavity 350, ensuring that each heater 400 has a stable airflow.

[0032] In some embodiments of this utility model, the air guide plate 330 is an inclined plate structure that extends obliquely from the left front side to the right rear side or from the right front side to the left rear side. The air guide plate 330 divides the upper air guide cavity 340 into a left branch channel 341 and a right branch channel 342. Both the left branch channel 341 and the right branch channel 342 are connected to the air outlet 311. The left branch channel 341 is connected to the upper side of the left side air guide cavity 350, and the right branch channel 342 is connected to the upper side of the right side air guide cavity 350.

[0033] The air guide plate 330 adopts an inclined plate structure, extending obliquely to the left or right front side. The air guide plate 330 serves as a divider, dividing the upper air guide cavity 340 into at least two parts: a left branch channel 341 and a right branch channel 342. Both the left branch channel 341 and the right branch channel 342 are interconnected with the air outlet 311 and respectively connected to the upper parts of the side air guide cavities 350 on the left and right sides, thus ensuring airflow. This structural design effectively disperses the airflow blown onto the air guide plate 330 into the left branch channel 341 and the right branch channel 342, allowing the airflow drawn into the upper air guide cavity 340 to be more evenly distributed into the side air guide cavities 350. This effectively guides the airflow between the various cavities, achieving a good air guiding effect, thereby ensuring that the airflow in the side air guide cavities 350 passes through all positions of the heater 400 and flows over each heater 400, carrying away the heat from the heater 400.

[0034] In some embodiments of this utility model, reference is made to Figure 2 , Figure 3 , Figure 6 The impeller 220 is a centrifugal impeller. The lower side of the impeller 220 has a centrifugal impeller inlet 221, and the side wall of the impeller 220 has a centrifugal impeller outlet 222. The impeller 220 is covered on the upper side of the outlet hole 311. The centrifugal impeller inlet 221 is connected to the outlet hole 311, and the centrifugal impeller outlet 222 is connected to the left branch channel 341 and the right branch channel 342.

[0035] The impeller 220, as a centrifugal impeller, has a dedicated centrifugal impeller inlet 221 on its lower side for air intake, and several centrifugal impeller outlets 222 distributed on its side. The impeller 220 is mounted above the outlet 311. Air is drawn from the heating chamber 301 through the centrifugal impeller inlet 221 and outlet 311. The rotation of the impeller 220 then distributes the airflow through the centrifugal impeller outlets 222 into the left and right distribution channels 341 and 342. This design evenly distributes the airflow from the impeller to the two distribution channels, achieving more efficient airflow distribution and utilization. This structure not only ensures smooth airflow but also improves the overall system performance and stability.

[0036] In some embodiments of this utility model, reference is made to Figure 2 , Figure 4 The outer casing 100 includes an outer outer panel layer 110 and an inner insulation layer 120. (Refer to...) Figure 5 The insulation layer 120 includes a number of insulation bricks 121 made of high-temperature resistant cement. The gaps between the insulation bricks 121 and the gaps between the insulation bricks 121 and the inner wall of the outer plate layer 110 are filled with insulation cotton 122.

[0037] The outer casing 100 has at least an outer panel layer 110 on the outside and an inner insulation layer 120 on the inside. The outer panel layer 110 serves as the outer protective structure, and the insulation layer 120 serves as the inner insulation structure. The insulation layer 120 is constructed of several insulation bricks 121, which are made of high-temperature resistant cement. The use of high-temperature resistant cement for the insulation bricks 121 significantly improves the overall strength of the outer casing 100.

[0038] The gaps between the insulation bricks 121 and between the insulation bricks 121 and the inner wall of the outer panel 110 are filled with insulation cotton 122. This combination of insulation bricks 121 and insulation cotton 122 allows the insulation layer 120 to better perform its insulation function, ensuring that the outer box 100 achieves the expected insulation effect during use. For example, the thickness of a similar insulation layer structure in the prior art is approximately 23 cm, while this invention, by adding insulation bricks 121, achieves a total thickness of 36 cm for the insulation layer 120.

[0039] In some embodiments of this utility model, reference is made to Figure 4 , Figure 6 The outer casing 100 is provided with an upper slide rail 130 and a lower slide rail 140. The lower side of the upper slide rail 130 has an upper slide rail groove 131, and the upper side of the lower slide rail 140 has a lower slide rail groove 141. The upper slide rail groove 131 and the lower slide rail groove 141 extend in the front-back direction. The upper and lower ends of the furnace side plate 320 are respectively slidably connected to the upper slide rail groove 131 and the lower slide rail groove 141. The upper side of the upper slide rail 130 abuts against the lower side of the furnace top plate 310.

[0040] Within the internal structure of the outer casing 100, two sets of slide rail components are fixed: an upper slide rail 130 and a lower slide rail 140. The upper slide rail groove 131 of the upper slide rail 130 corresponds to the lower slide rail groove 141 of the lower slide rail 140. Both grooves, namely the upper slide rail groove 131 and the lower slide rail groove 141, extend along the front-to-back direction. This allows the upper and lower ends of the furnace side plate 320 to be precisely slid into the upper slide rail groove 131 and the lower slide rail groove 141 respectively during the assembly process, thus achieving stable connection and positioning of the furnace side plate 320.

[0041] Furthermore, the upper side of the upper slide rail 130 tightly abuts against the lower side of the furnace top plate 310, and the furnace top plate 310 and the upper slide rail 130 are detachably connected. This design effectively supports the furnace top plate 310, thus ensuring the stability and reliability of the entire furnace frame 300 structure.

[0042] In some embodiments of this utility model, reference is made to Figure 2 , Figure 3 The heater 400 has a heater terminal 410, and a ceramic tube 150 is provided on the side wall of the outer casing 100, through which the heater terminal 410 extends outward.

[0043] That is, a ceramic tube 150 is pre-embedded in the outer casing 100, and the heater terminal 410 of the heater 400 passes through the outer casing 100 through the ceramic tube 150, and the heater terminal 410 is connected to the power outside.

[0044] For example, heater 400 can adopt a bent-tube heating element structure. When the heating element ages and breaks down, heater terminal 410 can be removed, furnace side plate 320 can be removed, and then the heating element can be easily replaced.

[0045] Previously, the heating elements of furnaces were generally made in two ways: using heating coils inside the furnace and fixing them with many screws, or using a heating tube structure, but without pre-embedded tubes. After the heating tubes were removed, a lot of insulation cotton would fall out and block the holes of the heating tubes, making subsequent replacement and installation difficult.

[0046] In some embodiments of this utility model, reference is made to Figure 1 , Figure 3 A temperature measuring instrument 160 is installed on the furnace frame 300. The temperature measuring instrument 160 can detect the heating temperature in the heating chamber 301 and monitor the heating operation status of the heating chamber 301 in real time.

[0047] The heat treatment aging furnace for heaters according to a second aspect embodiment of the present invention includes the heating furnace structure according to the first aspect embodiment of the present invention, and is capable of heat treating heater products. When the heater is drilled and tapped, moisture remains on the heater. The heater is then placed into the heating chamber 301 of the aging furnace of the present invention. During the heating and holding process within the heating chamber 301, the water evaporates naturally. This natural aging process eliminates the internal stress of the heater and exceeds its operating temperature. Finally, the heater is removed from the aging furnace of the present invention and sent to a CNC lathe for machining. This prevents the heater from deforming again during normal operation.

[0048] According to the embodiment of the present utility model, the heating furnace for heat treatment of the heater reduces the size of the heating furnace by adopting the above-mentioned heating furnace structure, which facilitates the miniaturization design of the aging furnace and improves the stability of the heating furnace for heat treatment, thereby enhancing the production efficiency of the product.

[0049] In some embodiments of this utility model, a connecting beam 170 is provided above the outer casing 100, and a space is left between the lower side of the connecting beam 170 and the top wall of the outer casing 100. The motor 200 is located on the connecting beam 170, the motor shaft 210 passes through the top wall of the outer casing 100 in the vertical direction, and the impeller 220 is connected to the lower part of the motor shaft 210.

[0050] The connecting beam 170 outside the outer casing 100 serves as the fixing structure for the motor 200. A certain space is intentionally left between the lower side of the connecting beam 170 and the top wall of the outer casing 100. This design reduces the impact of heat or vibration from the outer casing 100 during operation on the motor 200. The motor 200 is mounted on the connecting beam 170, and the motor shaft 210 passes through the outer casing 100 from top to bottom, directly connecting to the impeller 220. When the motor 200 starts, the motor shaft 210 drives the impeller 220 via direct connection, resulting in high transmission efficiency and strong stability. In contrast, the original aging furnace motor used a belt pulley drive, which had lower transmission efficiency and less stable operation.

[0051] In some embodiments of this utility model, the furnace frame 300 has an opening on its lower side, the outer box 100 has a door 180 on its front side, the bottom wall of the outer box 100 has a guide rail 190, the guide rail 190 has a frame 500, the frame 500 can move along the guide rail 190, and the frame 500 can place a workpiece.

[0052] The opening on the lower side of the furnace frame 300 corresponds to the guide rail 190 on the bottom wall of the outer casing 100, ensuring that the furnace frame 300 does not affect the movement of the carriage 500. After a workpiece is placed on the carriage 500, the casing door 180 is opened, and the carriage 500 and guide rail 190 cooperate to push the carriage 500 along the guide rail 190 to the rear and enter the heating chamber 301. The carriage 500 has a load-bearing capacity, and various workpieces can be placed on it, which facilitates the transportation of workpieces to designated locations, thereby improving work efficiency and simplifying the operation process.

[0053] Other components and operations of the aging furnace according to the embodiments of this utility model are known to those skilled in the art and will not be described in detail here.

[0054] The following is for reference. Figure 1 and Figure 2The structure of a heating furnace according to an embodiment of the present invention is described in detail with reference to a specific example. It is to be understood that the following description is merely illustrative and not intended to limit the scope of the invention.

[0055] like Figure 1 and Figure 2 As shown, the heat treatment aging furnace according to an embodiment of the present invention includes an outer casing 100, a motor 200, a furnace frame 300, a heater 400, and a chassis 500.

[0056] The outer casing 100 includes an outer panel layer 110, an insulation layer 120, insulation bricks 121, insulation cotton 122, an upper slide rail 130, an upper slide rail groove 131, a lower slide rail 140, a lower slide rail groove 141, a ceramic tube 150, a thermometer 160, a connecting beam 170, a door 180, and a guide rail 190.

[0057] The motor 200 is located on the outer casing 100. The motor 200 is equipped with a motor shaft 210 and an impeller 220. The motor 200 is a Y2 series B5 shaft three-phase asynchronous motor. The impeller 220 is a centrifugal impeller, and the impeller 220 has a centrifugal impeller inlet 221 and a centrifugal impeller outlet 222.

[0058] The furnace frame 300 and heater 400 are located on the outer casing 100. The furnace frame 300 is provided with a heating chamber 301, a furnace top plate 310, an air outlet 311, a furnace side plate 320, an air inlet 321, an air guide plate 330, an upper air guide cavity 340, a left branch channel 341, a right branch channel 342, and a side air guide cavity 350. The heater 400 is provided with heater terminals 410. The frame 500 is on the guide rail 190 and can move into the heating chamber 301.

[0059] In some embodiments of this utility model, the workpiece to be processed is a heating plate, and the working steps are as follows: 1. During drilling and tapping, the water vapor left on the heating plate is then sent into the heating chamber 301 of the aging furnace; 2. During the heating and heat preservation process in the heating chamber 301, the water is naturally evaporated. The natural aging process eliminates the internal stress of the heating plate and has already exceeded the operating temperature of the heating plate. 3. The heating plate is removed from the aging furnace and sent to a CNC machine for processing, so that the heating plate will not deform again during normal operation.

[0060] After the above process, the product quality of the heating plate is further improved. In particular, for high-end heating plates, it is necessary to age it in an aging furnace at least once. The aging process involves heating to 370°C and holding it at that temperature for 4 hours. Then, the product is pulled out and allowed to cool naturally to prevent the heating plate from deforming at high temperatures and to remove moisture.

[0061] According to the heating furnace structure of this utility model embodiment, the following effects can be achieved through this arrangement: the aging furnace of this utility model uses a combination of insulating bricks and insulating cotton, resulting in better insulation; the exterior of the outer casing 100 is almost the same as room temperature; the number of heaters 400 can be flexibly increased; ceramic tubes 150 are pre-embedded in the insulation layer 120, and the heater terminals 410 of the heaters 400 pass through the insulation layer 120 via the ceramic tubes 150, with the heater terminals 410 connected to the outside for power; when the heaters 400 age or are damaged, the heater terminals can be removed. Remove the furnace side plate 320 from the 410, and then easily replace the heater 400; the outer plate layer 110 of the outer casing 100 can be thickened without causing severe deformation due to high temperature; the inclined air guide plate 330 can draw out the air in the heating chamber 301 after the impeller 220 rotates, and blow it to the left diversion channel 341 and the right diversion channel 342, and then disperse them in an orderly manner, so that the air drawn up flows more evenly over each heater 400 in the side air guide cavity 350, better removes the heat on the heater 400, and improves the heating efficiency.

[0062] In the description of this specification, references to terms such as "some embodiments" or "as one might imagine" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0063] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A heating furnace structure, characterized in that, include: Outer casing (100) has a cavity; A motor (200) is located outside the outer casing (100), and the motor (200) has a motor shaft (210) to which an impeller (220) is connected. A furnace frame (300) is located inside the outer casing (100). The furnace frame (300) has a heating chamber (301). The furnace frame (300) includes an upper furnace top plate (310) and left and right furnace side plates (320). An upper air guide cavity (340) is left between the upper side of the furnace top plate (310) and the top wall of the outer casing (100). A gap is left between the outer side wall of the furnace side plate (320) and the inner side wall of the outer casing (100). The side air guide cavity (350) is connected to the upper air guide cavity (340). The furnace top plate (310) is provided with an air outlet (311). The impeller (220) is covered on the air outlet (311). An air guide plate (330) is provided on the upper side of the furnace top plate (310). The air guide plate (330) is located in the upper air guide cavity (340). The furnace side plate (320) is provided with an air inlet (321). The heater (400) is located inside the side air guide cavity (350).

2. The heating furnace structure according to claim 1, characterized in that, The air guide plate (330) is an inclined plate structure that extends from the left front side to the right rear side or from the right front side to the left rear side. The air guide plate (330) divides the upper air guide cavity (340) into a left branch channel (341) and a right branch channel (342). The left branch channel (341) and the right branch channel (342) are both connected to the air outlet (311). The left branch channel (341) is connected to the upper side of the side air guide cavity (350) on the left side, and the right branch channel (342) is connected to the upper side of the side air guide cavity (350) on the right side.

3. The heating furnace structure according to claim 2, characterized in that, The impeller (220) is a centrifugal impeller. The impeller (220) has a centrifugal impeller inlet (221) on its lower side and a centrifugal impeller outlet (222) on its sidewall. The impeller (220) covers the upper side of the outlet hole (311). The centrifugal impeller inlet (221) is connected to the outlet hole (311). The centrifugal impeller outlet (222) is connected to the left branch channel (341) and the right branch channel (342).

4. The heating furnace structure according to claim 1, characterized in that, The outer casing (100) includes an outer outer panel layer (110) and an inner insulation layer (120). The insulation layer (120) includes a number of insulation bricks (121) made of high-temperature resistant cement. The gaps between the insulation bricks (121) and the gaps between the insulation bricks (121) and the inner wall of the outer plate layer (110) are filled with insulation cotton (122).

5. The heating furnace structure according to claim 1, characterized in that, The outer casing (100) is provided with an upper slide rail (130) and a lower slide rail (140). The upper slide rail (130) has an upper slide rail groove (131) on its lower side, and the lower slide rail (140) has a lower slide rail groove (141) on its upper side. The upper slide rail groove (131) and the lower slide rail groove (141) extend in the front-back direction. The upper and lower ends of the furnace side plate (320) are respectively slidably connected to the upper slide rail groove (131) and the lower slide rail groove (141). The upper side of the upper slide rail (130) abuts against the lower side of the furnace top plate (310).

6. The heating furnace structure according to claim 1, characterized in that, The heater (400) has a heater terminal (410), and a ceramic tube (150) is provided on the side wall of the outer casing (100), with the heater terminal (410) extending outward through the ceramic tube (150).

7. The heating furnace structure according to claim 1, characterized in that, A thermometer (160) is installed on the furnace frame (300), and the thermometer (160) can detect the heating temperature inside the heating chamber (301).

8. A heat treatment aging furnace with a heating element, characterized in that, Includes the heating furnace structure according to claim 1.

9. The heat treatment aging furnace with a heating element according to claim 8, characterized in that, A connecting beam (170) is provided above the outer casing (100). There is a space between the lower side of the connecting beam (170) and the top wall of the outer casing (100). The motor (200) is located on the connecting beam (170). The motor shaft (210) passes through the top wall of the outer casing (100) in the vertical direction. The impeller (220) is connected to the lower part of the motor shaft (210).

10. The heat treatment aging furnace for the heating element according to claim 8, characterized in that, The furnace frame (300) has an opening on its lower side, and the outer box (100) has a door (180) on its front side. The bottom wall of the outer box (100) is provided with a guide rail (190), and a frame (500) is provided on the guide rail (190). The frame (500) can move along the guide rail (190), and a workpiece can be placed on the frame (500).

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