Uniform air-blast quenching device and processing equipment

Abstract

The utility model provides a uniform air cooling quenching device and processing equipment, and solves the problem of product deformation caused by non-uniform air cooling flow. The device comprises a centrifugal fan, an air outlet of the centrifugal fan is connected with an inlet of an air pipe, at least one group of uniform air adjusting mechanism and one group of air knife mechanism are sequentially arranged in the air pipe from the inlet to the outlet, the outlet of the air pipe is connected with a material placing box, and an exhaust pipe opening is arranged below the material placing box in a communicated manner; the air uniformizing adjusting mechanism comprises a movable pore plate and a fixed pore plate which are arranged up and down, the fixed pore plate is fixed to the cross section of a pipe cavity of the air pipe through a fixing frame, and the movable pore plate is driven by a push-pull assembly in a reciprocating mode relative to the fixed pore plate to adjust the ventilation area. According to the utility model, the air pipe as well as the uniform air adjusting mechanism and the air knife mechanism in the air pipe are additionally arranged, cold air flow forms a uniform air field through regulation and control, and the direction of the air flow is controlled, so that the problem of deformation during quenching of a thin plate is solved, and the yield and the productivity are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of chemical equipment, in particular to a uniform air-cooled quenching device and processing equipment. Background Art

[0002] Quenching is a metal material processing technology, usually used to enhance the hardness and wear resistance of metals. This process involves rapidly cooling the metal heated to an appropriate temperature, usually by immersion in water, oil or air. The main purpose of quenching is to change the structure of the metal by rapid cooling to make it hard. This technology is commonly used in the manufacture of products such as cutting tools, mechanical parts, and engine parts that require high strength and wear resistance.

[0003] Most quenching uses water as the quenching medium. When thin-profile materials are quenched by water cooling, serious deformation will occur, making it difficult to meet the processing requirements of products. Therefore, air-cooled quenching has to be chosen instead. For aluminum alloy thin plates with high mechanical property requirements, strong wind must be used for air quenching to ensure that the products can be rapidly cooled during the quenching process, otherwise their mechanical properties will be difficult to meet the standards.

[0004] For example, Chinese Patent Document No. 202322872968.0 discloses an air-cooled quenching device for aluminum castings that can make the aluminum castings relatively sealed during air cooling as needed. An air-cooled quenching device for aluminum castings includes a housing, an exhaust fan, an air outlet pipe, a water tank and a cooling pipe. The exhaust fans are symmetrically installed on the front and back sides of the right side of the housing, the exhaust fans are communicated with the housing, the air outlet pipe is embedded and fixedly connected to the middle of the top of the housing, the water tank is connected to the rear side of the housing, a water pump is fixedly connected to the bottom inside the water tank by bolts, and the cooling pipe is embedded and connected to the left side of the housing. The utility model realizes a relatively sealed environment by setting a sealing plate; by loosening the buckle lock, the elastic member will reset and make the buckle lock slide inward to reset. When the buckle lock slides inward, the sealing plate will be clamped, thereby fixing the sealing plate to prevent the sealing plate from falling off.

[0005] In the above technical solution, an exhaust fan is used to generate strong wind in a large range, but the uniformity of its wind force is poor. The products obtained by quenching with this wind field have deformation problems, and the deformation is caused by the stress release after the product structure is processed. This direct cooling method affects the product quality and reduces the production capacity. Summary of the Utility Model

[0006] The purpose of the utility model is to address the above problems existing in the prior art and propose a uniform air-cooled quenching device and processing equipment.

[0007] The object of the present utility model can be achieved by the following technical solutions: A uniform air-cooled quenching device, including a centrifugal fan, the air outlet of the centrifugal fan is connected to the inlet of an air duct, and at least one set of air distribution and adjustment mechanism and one set of air knife mechanism are arranged in sequence from the inlet to the outlet in the air duct. The outlet of the air duct is connected to a discharging box, and an exhaust pipe port is communicated below the discharging box; the air distribution and adjustment mechanism includes a movable orifice plate and a fixed orifice plate arranged up and down. The fixed orifice plate is fixed on the cross section of the air duct cavity through a fixed frame, and the movable orifice plate is reciprocally driven relative to the fixed orifice plate by a push-pull component to adjust the ventilation area.

[0008] In the above-mentioned uniform air-cooled quenching device, the air outlet of the centrifugal fan is a quadrangular pyramid-shaped shell, the air duct is a rectangular pipe, the fixed orifice plate is a rectangular plate, the fixed frame is a rectangular frame, and the movable orifice plate is a rectangular plate.

[0009] In the above-mentioned uniform air-cooled quenching device, a number of long holes one are opened in a rectangular array on the fixed orifice plate, and a number of long holes two are opened in a rectangular array on the movable orifice plate; when the movable orifice plate overlaps with the fixed orifice plate, a number of long holes two correspond to and coincide with a number of long holes one to form all-through communication; when the movable orifice plate is misaligned with the fixed orifice plate, a number of long holes two and a number of long holes one are misaligned one by one to form partial communication.

[0010] In the above-mentioned uniform air-cooled quenching device, the push-pull component includes X connecting rods fixedly connected to the two X sides of the movable orifice plate. One ends of the two X connecting rods are fixedly connected to a Y axis rod. A support frame is arranged on the outer periphery of the air duct, and a mounting frame is arranged at a corresponding position on the support frame. An X tension spring is connected between the Y axis rod and the mounting frame. A hinge seat is fixedly installed on the mounting frame, and the middle part of a rocker is hinged on the hinge seat. The outer end of the rocker is hinged to a lifting pull rod, and the inner end of the rocker is an arc end, and the arc end abuts against the Y axis rod to form a sliding connection.

[0011] In the above-mentioned uniform air-cooled quenching device, mounting plates are convexly arranged on the two X sides of the movable orifice plate, X guide chutes are correspondingly opened on the pipe wall of the air duct, the mounting plates extend out from the X guide chutes to form a guiding and sliding connection, the extending parts of the mounting plates are fixedly installed with the X connecting rods through nuts, and the ends of the X connecting rods pass through the Y axis rod and are fixedly connected through nuts.

[0012] In the above-mentioned uniform air-cooled quenching device, a vertical slot is opened on the mounting frame, the vertical slot has an inlet and outlet slot opening, and the outer end of the rocker enters the vertical slot from the inlet and outlet slot opening to form a guiding and sliding connection.

[0013] In the above-mentioned uniformity air-cooling quenching device, the air knife mechanism includes a plurality of X blades arranged in parallel and a plurality of Y blades arranged in parallel. Both ends of the X blades are hinged to the inner wall of the air duct, and both ends of the Y blades are hinged to the inner wall of the air duct. The plurality of X blades and the plurality of Y blades are arranged in a cross pattern.

[0014] In the above-mentioned uniformity air-cooling quenching device, the feeding box includes a rectangular box body, and baffles are arranged on the surrounding side surfaces of the rectangular box body.

[0015] A processing device includes the above-mentioned uniformity air-cooling quenching device.

[0016] Compared with the prior art, the present uniformity air-cooling quenching device and the processing device have the following beneficial effects:

[0017] 1. Design advantages of the air distribution and adjustment mechanism: The air distribution and adjustment mechanism in the device includes a movable orifice plate and a fixed orifice plate, which are driven by a push-pull assembly and can realize the reciprocating movement of the movable orifice plate on the fixed orifice plate. This design can adjust the ventilation area as needed, thereby precisely controlling the air flow rate and speed passing through the air duct. By misaligning or aligning the long holes two on the movable orifice plate with the long holes one on the fixed orifice plate, precise adjustment of the air volume is achieved, ensuring the uniformity and stability of the air flow during the quenching process. By regulating, a uniform wind field is formed for the cold air flow to address the problem of deformation prevention during thin plate quenching, improving the yield and production capacity.

[0018] 2. Control advantages of the air flow direction: An air knife mechanism is added in the air duct. By regulating the angle of the air knife, the control of the air-cooling air flow direction is achieved to target the quenching position of the product and improve the operation efficiency.

[0019] 3. Operation advantages of the push-pull assembly: The push-pull assembly includes components such as an X connecting rod, a Y shaft rod, an X tension spring, a mounting bracket, and a hinged rocker. Through the mechanical structure, the movement and adjustment of the movable orifice plate are made efficient and precise. This design not only ensures the reliability of the device during long-term use but also improves the convenience for operators during adjustment and maintenance.

[0020] 4. Design advantages of the feeding box: The feeding box includes a rectangular box body and the baffles arranged around it. This design aims to reduce the turbulence effect of the surrounding air flow, thereby effectively guiding the heat-carrying air flow to be discharged towards the exhaust pipe opening. This characteristic is crucial for ensuring the uniformity of the temperature distribution during the quenching process and can effectively improve the quenching effect and product quality.

[0021] Generally speaking, through its precise air volume regulation system, optimized structural design, and effective heat guiding mechanism, this uniformity air-cooling quenching device can significantly improve the temperature control during the air-cooling process and the process uniformity of products. These advantages not only make the device applicable to a wide range of industrial applications, but also improve the production efficiency and the stability of product quality, which has important technical and economic significance for modern manufacturing. Description of the Drawings

[0022] Figure 1 This is a three-dimensional structure diagram of the overall external shape of this uniformity air-cooling quenching device.

[0023] Figure 2 This is a three-dimensional structure diagram of the air volume regulation mechanism in this uniformity air-cooling quenching device.

[0024] Figure 3 This is a top view structure diagram of the air volume regulation mechanism in this uniformity air-cooling quenching device.

[0025] Figure 4 This is a three-dimensional structure diagram of the air knife mechanism in this uniformity air-cooling quenching device.

[0026] Figure 5 This is a schematic diagram of the heat in the air field of the existing structure.

[0027] Figure 6 This is a schematic diagram of the heat in the air field of this uniformity air-cooling quenching device.

[0028] Figure 7 This is a trend chart generated by the wind speed measured by an anemometer under the existing structure.

[0029] Figure 8 This is a trend chart generated by the wind speed measured by an anemometer under this uniformity air-cooling quenching device.

[0030] In the figures, 1. Centrifugal fan; 2. Air duct; 3. Feeding box; 4. Exhaust pipe port; 5. Movable orifice plate; 6. Fixed orifice plate; 7. Fixed frame; 8. X-link; 9. Y-axis rod; 10. Support frame; 11. Mounting frame; 12. X tension spring; 13. Hinge seat; 14. Rocker; 15. Lifting pull rod; 16. X blade; 17. Y blade. Detailed Implementation Modes

[0031] The following are specific embodiments of the present invention and in combination with the drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0032] Embodiment 1

[0033] As Figures 1 to 4As shown in the figure, this uniformity air-cooled quenching device includes a centrifugal fan 1. The air outlet of the centrifugal fan 1 is connected to the inlet of the air duct 2. Inside the air duct 2, at least one air distribution and adjustment mechanism and one air knife mechanism are arranged in sequence from the inlet to the outlet. The outlet of the air duct 2 is connected to the discharge box 3, and an exhaust pipe port 4 is communicatively arranged below the discharge box 3. The air distribution and adjustment mechanism includes a movable orifice plate 5 and a fixed orifice plate 6 arranged vertically. The fixed orifice plate 6 is fixed on the cross-section of the lumen of the air duct 2 through a fixed frame 7. The movable orifice plate 5 is reciprocally driven by a push-pull assembly relative to the fixed orifice plate 6 to adjust the ventilation area.

[0034] As Figures 1 to 3 shown, the air outlet of the centrifugal fan 1 is a quadrangular pyramid-shaped housing, the air duct 2 is a rectangular pipe, the fixed orifice plate 6 is a rectangular plate, the fixed frame 7 is a rectangular frame, and the movable orifice plate 5 is a rectangular plate. All adopt rectangular structures to enable the movable orifice plate 5 to reciprocally move within a certain range along the length direction of the fixed orifice plate 6.

[0035] As Figure 3 shown, a number of long holes one are opened on the fixed orifice plate 6 in a rectangular array, and a number of long holes two are opened on the movable orifice plate 5 in a rectangular array; the length direction of the long holes one is consistent with the length direction of the fixed orifice plate 6, and the length direction of the long holes two is consistent with the length direction of the movable orifice plate 5. When the movable orifice plate 5 overlaps with the fixed orifice plate 6, a number of long holes two correspond to and coincide with a number of long holes one to form all-through connections; when the movable orifice plate 5 is misaligned with the fixed orifice plate 6, a number of long holes two are misaligned with a number of long holes one to form partial connections.

[0036] When the long holes two are completely connected to the long holes one, the air volume flowing through is the largest; as the degree of misalignment between the long holes two and the long holes one increases, the connected part gradually becomes smaller; to achieve the regulation operation of the air volume. The holes on the fixed orifice plate 6 and the movable orifice plate 5 can also adopt other shapes and arrangements, as long as the ventilation area changes during the relative movement.

[0037] As Figures 3 to 4 shown, the push-pull assembly includes X connecting rods 8 fixedly connected to the two sides X edges of the movable orifice plate 5. One ends of the two X connecting rods 8 are fixedly connected to a Y-axis rod 9. A support frame 10 is arranged on the outer periphery of the air duct 2, and a mounting frame 11 is arranged at the corresponding position on the support frame 10. An X tension spring 12 is connected between the Y-axis rod 9 and the mounting frame 11. A hinge seat 13 is fixedly installed on the mounting frame 11, and the middle part of a rocker 14 is hinged to the hinge seat 13. The outer end of the rocker 14 is hinged to a lifting pull rod 15, and the inner end of the rocker 14 is an arc end, and the arc end abuts against the Y-axis rod 9 to form a sliding connection.

[0038] By pushing and pulling the lifting rod 15 up and down, the outer end of the rocker 14 swings up and down, and the rocker 14 rotates around the middle hinge point to make the inner end of the rocker 14 swing up and down. The arc-shaped top of the arc end slides on the Y-axis rod 9, so that the Y-axis rod 9 pushes two X-link rods 8, and synchronously pushes the movable orifice plate 5 to displace the second long hole from the first long hole to form partial communication. After the lifting rod 15 is reset, the Y-axis rod 9 is pulled back by the X-pull spring 12, and the X-link rod 8 and the movable orifice plate 5 are synchronously driven to reset, so that the second long hole is completely communicated with the first long hole.

[0039] On the two X-sides of the movable orifice plate 5, mounting plates are convexly provided. On the pipe wall of the air duct 2, X-guide chutes are correspondingly opened. The mounting plates extend out from the X-guide chutes to form a sliding connection. The extended parts of the mounting plates are fixedly installed with X-link rods 8 through nuts. The ends of the X-link rods 8 are connected to the Y-axis rod 9 through nuts and fixedly connected. The length of the X-guide chute is greater than the width of the mounting plate, so that the mounting plate reciprocates in the X-guide chute, and the reciprocating movement range of the movable orifice plate 5 is restricted by the X-guide chute. The assembly of the X-link rod 8 and the Y-axis rod 9 is realized through nuts, improving the disassembly and assembly efficiency.

[0040] A vertical groove is opened on the mounting frame 11, and the vertical groove has an inlet and outlet notch. The outer end of the rocker 14 enters the vertical groove from the inlet and outlet notch to form a sliding connection. The outer end of the rocker 14 can swing up and down along the vertical groove. Through the guiding constraint of the vertical groove, the vertical direction of the reciprocating swing of the rocker 14 is ensured, and the stability of the swing is improved.

[0041] As Figure 4 shown, the air knife mechanism includes a plurality of X-blades 16 arranged in parallel and a plurality of Y-blades 17 arranged in parallel. The two ends of the X-blades 16 are hinged to the inner wall of the air duct 2, the two ends of the Y-blades 17 are hinged to the inner wall of the air duct 2, and a plurality of X-blades 16 and a plurality of Y-blades 17 are arranged in a cross manner. The hinged ends of a plurality of X-blades 16 are connected to an X-link rod control mechanism, and the angles of a plurality of X-blades 16 are regulated through the X-link rod control mechanism. The hinged ends of a plurality of Y-blades 17 are connected to a Y-link rod control mechanism, and the angles of a plurality of Y-blades 17 are regulated through the Y-link rod control mechanism. The X-link rod control mechanism 、 The Y-link rod control mechanism is a conventional transmission connection in the prior art. For example, bevel gear meshing transmission can be adopted. A plurality of driving gears are sleeved on the link rod, driven gears are fixedly arranged at the hinged ends of the blades, the driving gears are meshed with the driven gears, and the rotation of the link rod drives the driven gears to rotate in a fixed direction through the driving gears, so as to adjust the inclination angle of the blades.

[0042] As Figure 1 shown, the feeding box 3 includes a rectangular box body, and baffles are arranged on the peripheral side surfaces of the rectangular box body. The product is placed in the feeding box 3, and the baffles installed around can effectively reduce the peripheral turbulence, so that the airflow carrying heat is discharged to the exhaust pipe orifice 4.

[0043] The operation mode of this uniform air-cooling quenching device is as follows:

[0044] Place the product in the feeding box 3, and turn on the centrifugal fan 1 to blow cold air from the air outlet into the air duct 2. Push and pull the lifting rod 15 up and down to drive the outer end of the rocker 14 to swing up and down. The rocker 14 rotates around the middle hinge point to make the inner end of the rocker 14 swing up and down. Slide the Y-axis rod 9 through the arc top at the arc end, so that the Y-axis rod 9 pushes two X-link rods 8, and synchronously pushes the movable orifice plate 5 to misalign the second long hole and the first long hole to form partial communication, and adjust the ventilation area according to the product characteristics. The cold air flow will be blocked when passing through the movable orifice plate 5 and the fixed orifice plate 6. When the air pressure above the movable orifice plate 5 and the fixed orifice plate 6 is greater than that below, the air flow passes through the holes, and the air flow is evenly guided to be delivered downward through the uniform holes. Adjust the direction of the air knife so that the air flow blows to the quenching position of the product below for air cooling operation. Finally, due to the shielding of the baffles around the feeding box 3, the air flow carrying heat is discharged from the exhaust pipe port 4.

[0045] Embodiment 2

[0046] This embodiment is basically the same as Embodiment 1, and the difference lies in:

[0047] A processing device includes the above-mentioned uniform air-cooling quenching device.

[0048] According to the flow rate of this centrifugal fan 1 and the 3D models of the two structures, the wind fields under the two structures are obtained by means of Ansys-2023 simulation. Figure 5 It is a schematic diagram of the wind field heat of the existing structure. Figure 6 It is a schematic diagram of the wind field heat of this device. In contrast, the wind field heat of this device is very uniform. Figure 7 It is a trend chart generated by the wind speed measured by an anemometer under the existing structure. Figure 8 It is a trend chart generated by the wind speed measured by an anemometer under this device. Similarly, the wind field of this device is more uniform, corresponding to the simulation results.

[0049] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the defined scope. Although the present invention has been described in detail in the drawings and the foregoing description, such description is considered to be illustrative or exemplary rather than restrictive. It should be understood that within the scope of the following claims, those of ordinary skill in the art can make changes and modifications. Specifically, the present invention encompasses additional embodiments having any combination of features from the different embodiments described above. Regarding the use of the expressions "generally" or "substantially", this patent application should be understood to disclose that the same fully meets these features and values, that is, without the foregoing being characterized as "generally" or "substantially".

[0050] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. A uniform air-cooling quenching device, comprising a centrifugal fan (1), wherein the air outlet of the centrifugal fan (1) is connected to the inlet of an air duct (2), characterized in that: At least one group of air balancing adjustment mechanisms and one group of wind knife mechanisms are arranged in sequence from the inlet to the outlet in the air duct (2); the outlet of the air duct (2) is connected to a discharge box (3); an exhaust pipe port (4) is arranged below the discharge box (3); the air balancing adjustment mechanism comprises a movable orifice plate (5) and a fixed orifice plate (6) arranged up and down; the fixed orifice plate (6) is fixed to the tube cavity cross section of the air duct (2) by a fixing frame (7); the movable orifice plate (5) is reciprocally driven by a push-pull assembly relative to the fixed orifice plate (6) to adjust the ventilation area.

2. The uniform air-cooling quenching device according to claim 1, characterized in that: The air outlet of the centrifugal fan (1) is a quadrangular pyramid shell, the air duct (2) is a rectangular tube, the fixed orifice plate (6) is a rectangular plate, the fixed frame (7) is a rectangular frame, and the movable orifice plate (5) is a rectangular plate.

3. The uniform air-cooling quenching device according to claim 2, characterized in that: The fixed orifice plate (6) has a plurality of elongated holes 1 formed in a rectangular array, and the movable orifice plate (5) has a plurality of elongated holes 2 formed in a rectangular array; the movable orifice plate (5) overlaps with the fixed orifice plate (6) so that the plurality of elongated holes 2 correspond to the plurality of elongated holes 1 one by one to form a complete connection; the movable orifice plate (5) and the fixed orifice plate (6) are offset so that the plurality of elongated holes 2 are offset to the plurality of elongated holes 1 one by one to form a partial connection.

4. The uniform air-cooling quenching device according to claim 2, characterized in that: The push-pull assembly comprises an X-connecting rod (8) fixedly connected to the X edges of both sides of the movable orifice plate (5), one end of the two X-connecting rods (8) being fixedly connected to a Y-axis rod (9), a support frame (10) being arranged on the outer periphery of the air duct (2), a mounting frame (11) being arranged at a corresponding position on the support frame (10), an X tension spring (12) being connected between the Y-axis rod (9) and the mounting frame (11), a hinge seat (13) being fixedly installed on the mounting frame (11), a middle part of a seesaw (14) being hinged on the hinge seat (13), an outer end of the seesaw (14) being hinged to a lifting rod (15), an inner end of the seesaw (14) being an arc end, and the arc end being pressed against the Y-axis rod (9) to form a sliding connection.

5. The uniform air-cooling quenching device according to claim 4, characterized in that: Mounting plates are protrudingly provided on the X sides of the movable orifice plate (5), and an X-guide groove is correspondingly opened on the tube wall of the air duct (2). The mounting plate extends out from the X-guide groove to form a guide-slide connection, and the protruding part of the mounting plate is fixedly mounted on the X-connecting rod (8) through a nut, and the end of the X-connecting rod (8) is connected to the Y-axis rod (9) through a nut.

6. The uniform air-cooling quenching device according to claim 4, characterized in that: The mounting frame (11) is provided with a vertical slot having an inlet and outlet slot, and the outer end of the rocker plate (14) enters the vertical slot through the inlet and outlet slot to form a guide sliding connection.

7. The uniform air-cooling quenching device according to claim 1, characterized in that: The wind knife mechanism comprises a plurality of X blades (16) arranged in parallel and a plurality of Y blades (17) arranged in parallel, the two ends of the X blade (16) being hinged on the inner wall of the wind duct (2), the two ends of the Y blade (17) being hinged on the inner wall of the wind duct (2), and the plurality of X blades (16) and the plurality of Y blades (17) being arranged crosswise.

8. The uniform air-cooling quenching device according to claim 1, characterized in that: The material discharging box (3) comprises a rectangular box body, and baffles are arranged on the four sides of the rectangular box body.

9. A processing equipment, characterized in that: It comprises a uniform air-cooling quenching device as claimed in any one of claims 1 to 8.

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