Heat treatment device for die steel forgings

Abstract

The utility model provides a die steel forge piece heat treatment device which comprises a transmission vertical rod, an exhaust fan blade, a first bevel gear and a second transmission shaft, the annular side face of the first transmission shaft is provided with the first bevel gear, the left end face of a vertical plate is fixedly connected with an exhaust barrel, and the rear end of the second transmission shaft is provided with the exhaust fan blade. When the cooling assembly cools heat treatment oil in the cooling pool body for heat treatment, a first transmission shaft rotates through a first bevel gear, a second bevel gear drives a transmission vertical rod to rotate, and the transmission vertical rod drives exhaust fan blades to rotate through a third bevel gear, a fourth bevel gear and a second transmission shaft; and then negative pressure is generated in the exhaust funnel to suck in most waste gas generated in the quenching cooling process and drifting away above the cooling pool body for heat treatment, and the waste gas sucked into the exhaust funnel can be guided into external waste gas treatment equipment through the exhaust pipe to be treated, so that the breathing health of surrounding workers is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of heat treatment of die steel forgings, in particular to a heat treatment device for die steel forgings. Background Art

[0002] Die steel is used to manufacture molds for cold stamping, hot forging, and die casting. Dies are essential processing tools for manufacturing parts in industries such as machinery, radio instruments, motors, and electrical appliances. Die steel forgings require heat treatment during the manufacturing process. Heat treatment involves heating, holding, and cooling the material in a solid state to achieve the desired microstructure and properties.

[0003] Publication number "CN218932215U" provides a mold steel heat treatment device, which uses a motor to make the sliding plate repeatedly move linearly on the cooling pool to change the water level of the first water tank on the cooling pool. The movement and displacement of water in the cooling pool causes the water temperature to drop and the temperature to be more uniform, so that the mold steel body will not crack when water-air replacement is performed in the cooling pool, which affects product quality.

[0004] However, the above technical solutions and the prior art have the following defects:

[0005] Since the mold steel heat treatment device relies on repeated linear movement of the sliding plate on the cooling pool to change the water level of the first water tank on the cooling pool to reduce the water temperature, and this cooling structure can only be used when the mold steel is not in the cooling pool for quenching and cooling. It cannot be used when the mold steel is in the cooling pool for quenching and cooling. Therefore, the cooling efficiency needs to be improved. In addition, the mold steel heat treatment device does not have a discharge structure for the exhaust gas generated during the quenching and cooling process, causing these exhaust gases to drift to the surrounding area and affect the respiratory health of the staff. The safety of use needs to be improved. Utility Model Content

[0006] The purpose of the utility model is to provide a die steel forging heat treatment device to solve the problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A heat treatment device for die steel forgings includes a cooling pool body for heat treatment, a drain valve, a refill valve, a grid plate and a vertical plate. The refill valve is installed on the upper side of the front end surface of the cooling pool body for heat treatment, and the drain valve is installed on the lower side of the front end surface of the cooling pool body for heat treatment. A grid plate is placed inside the cooling pool body for heat treatment. The rear side of the upper end surface of the cooling pool body for heat treatment is fixedly connected to the vertical plate. The rear end surface of the vertical plate is provided with an exhaust component for sucking and discharging the gas generated during the cooling process. A cooling component for auxiliary cooling of the heat treatment oil is provided on the lower side of the interior of the cooling pool body for heat treatment.

[0009] Preferably, the cooling component includes an air inlet pipe, an air guide tube, a heat absorption pipe, an air outlet pipe, a motor, a first transmission shaft and a supply fan blade. The lower side of the interior of the cooling pool body for heat treatment is fixedly connected to the heat absorption pipe, the rear end of the heat absorption pipe is fixedly connected to the air guide tube, the rear end of the air guide tube is connected to the air inlet pipe, a motor is installed inside the air guide tube, a first transmission shaft is installed at the front end of the motor, supply fan blades are installed at the front end of the first transmission shaft, and the front end of the heat absorption pipe is fixedly connected to the air outlet pipe.

[0010] Preferably, the exhaust assembly includes an exhaust pipe, a transmission vertical rod, a support frame, an exhaust fan blade, a first bevel gear and a second transmission shaft, a first bevel gear is provided on the annular side of the first transmission shaft, a second bevel gear is engaged with the upper side of the annular side of the first bevel gear, a transmission vertical rod is provided on the upper end face of the second bevel gear, a third bevel gear is provided on the upper end of the transmission vertical rod, a fourth bevel gear is engaged with the left side of the annular side of the third bevel gear, the left end face of the vertical plate is fixedly connected to the exhaust pipe, a support frame is installed inside the exhaust pipe, a second transmission shaft is installed at the rear end of the support frame, and an exhaust fan blade is installed at the rear end of the second transmission shaft.

[0011] Preferably, a limit plate is installed at the front end of the second transmission shaft, and the limit plate is embedded in the interior of the support frame, and an anti-slip cover is installed at the rear end surface of the support frame.

[0012] Preferably, a follower ring is provided on the upper side of the annular side surface of the transmission vertical rod, a limit cover is installed on the lower end surface of the exhaust pipe, the rear end of the exhaust pipe is connected to an exhaust pipe, and the exhaust pipe outlet is connected to the inlet of the external exhaust gas treatment equipment.

[0013] Preferably, the front end of the air outlet tube is connected to an air outlet pipe, and the outlet of the air outlet pipe is connected to the external air exhaust port, and the inlet of the air inlet pipe is connected to the outlet of the external industrial air cooler.

[0014] Preferably, the heat absorption pipe is respectively connected to the air guide tube and the air outlet tube, and there are multiple heat absorption pipes fixedly connected, and the specifications of the multiple heat absorption pipes are the same.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. When the external die steel forging is quenched and cooled, the motor drives the fan blades to rotate through the first transmission shaft, so that the rotating fan blades can quickly blow the cold air entering the air guide tube forward to the multiple heat absorption pipes, so that the cold air can absorb most of the heat of the heat treatment oil at the bottom of the heat treatment cooling pool through the multiple heat absorption pipes to cool it down. In addition, this structure will not hinder the external die steel forging from being quenched and cooled in the heat treatment oil inside the heat treatment cooling pool when in use, and the cooling efficiency is high;

[0017] 2. When the cooling component of the present invention cools down the heat treatment oil inside the cooling pool for heat treatment, the first transmission shaft will rotate through the first bevel gear, and the second bevel gear will drive the transmission vertical rod to rotate, so that the transmission vertical rod will drive the exhaust fan blades to rotate through the third bevel gear, the fourth bevel gear and the second transmission shaft, thereby generating a negative pressure inside the exhaust pipe to suck in most of the waste gas generated in the quenching and cooling process above the cooling pool for heat treatment, and the waste gas sucked into the exhaust pipe will be guided to the outside waste gas treatment equipment through the exhaust pipe for treatment, so as to ensure the respiratory health of the surrounding staff and good safety in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 This is a structural diagram of the cooling component and the exhaust component in the utility model;

[0020] Figure 3 It is a left side cross-sectional view of the cooling component and the exhaust component in the present invention;

[0021] Figure 4 It is a partial structural diagram of the cooling component and the exhaust component in the utility model;

[0022] Figure 5 for Figure 3 A partial enlarged view of .

[0023] In the figure: 1. Cooling pool body for heat treatment; 2. Cooling component; 21. Air inlet pipe; 22. Air guide tube; 23. Heat absorption pipe; 24. Air outlet pipe; 241. Air outlet pipe; 25. Motor; 26. First transmission shaft; 27. Supply fan blade; 3. Drain valve; 4. Refill valve; 5. Grid plate; 6. Vertical plate; 7. Exhaust component; 71. Exhaust tube; 72. Exhaust pipe; 73. Transmission vertical rod; 731. Follower ring; 732. Limit cover; 74. Support frame; 741. Anti-slip cover; 75. Exhaust fan blade; 76. First bevel gear; 77. Second bevel gear; 78. Third bevel gear; 79. Fourth bevel gear; 711. Second transmission shaft; 7111. Limit plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-5 , the utility model provides a technical solution:

[0026] Example 1:

[0027] A heat treatment device for die steel forgings includes a cooling pool body 1 for heat treatment, a drain valve 3, a refill valve 4, a grid plate 5 and a vertical plate 6. A refill valve 4 is installed on the upper side of the front end surface of the cooling pool body 1 for heat treatment. The inlet of the refill valve 4 is connected to the outlet of the external heat treatment oil storage tank through a pipeline. The refill valve 4 facilitates the staff to add an appropriate amount of heat treatment oil to the inside of the cooling pool body 1 for heat treatment. A drain valve 3 is installed on the lower side of the front end surface of the cooling pool body 1 for heat treatment. The outlet of the drain valve 3 is connected to the inlet of the external waste liquid treatment tank through a pipeline. The drain valve 3 facilitates the staff to discharge the heat treatment oil inside the cooling pool body 1 for heat treatment for replacement. A grid plate 5 is placed inside the cooling pool body 1 for heat treatment. The grid plate 5 will block the external die steel forgings immersed in the heat treatment oil inside the cooling pool body 1 for heat treatment, so as to prevent the heat absorption pipe 23 from being directly bumped during use.

[0028] A vertical plate 6 is fixedly connected to the rear side of the upper end face of the cooling pool body 1 for heat treatment, and the vertical plate 6 supports the exhaust pipe 71. The rear end face of the vertical plate 6 is provided with an exhaust component 7 for sucking and discharging the gas generated during the cooling process. A cooling component 2 for assisting in cooling the heat treatment oil is provided on the lower side of the interior of the cooling pool body 1 for heat treatment.

[0029] The cooling component 2 includes an air inlet pipe 21, an air duct 22, a heat absorption pipe 23, an air outlet pipe 24, a motor 25, a first transmission shaft 26 and a fan blade 27. A heat absorption pipe 23 is fixedly connected to the lower side of the interior of the cooling pool body 1 for heat treatment. The heat absorption pipe 23 is respectively connected to the air duct 22 and the air outlet pipe 24. There are multiple heat absorption pipes 23 fixedly connected, and the multiple heat absorption pipes 23 have the same specifications. The multiple heat absorption pipes 23 are connected to the cooling pool body 1 for heat treatment, the air duct 22 and the air outlet pipe 24 by welding. The multiple heat absorption pipes 23 will absorb most of the heat of the heat treatment oil inside the cooling pool body 1 for heat treatment. The rear end of the heat absorption pipe 23 is fixedly connected to the air duct 22, and the air duct 22 facilitates the distribution of cold air in the air inlet pipe 21 to the multiple heat absorption pipes 23.

[0030] The rear end of the air duct 22 is connected to an air inlet duct 21, and the inlet of the air inlet duct 21 is connected to the outlet of the external industrial air cooler. The air inlet duct 21 will guide the cold air discharged by the external industrial air cooler into the air duct 22. A motor 25 is installed inside the air duct 22, and the motor 25 is connected to the external control switch through a wire. A first transmission shaft 26 is installed at the front end of the motor 25, and a supply fan blade 27 is installed at the front end of the first transmission shaft 26. The motor 25 will drive the supply fan blade 27 to rotate through the first transmission shaft 26, so that the rotating supply fan blade 27 can quickly blow the cold air inside the air duct 22 to multiple heat absorption pipes 23. The front end of the heat absorption pipe 23 is fixedly connected to an air outlet duct 24, and the air outlet duct 24 will guide the air in multiple heat absorption pipes 23 to the air outlet duct 241. The front end of the air outlet duct 24 is connected to the air outlet duct 241, and the outlet of the air outlet duct 241 is connected to the external exhaust port, and the air outlet duct 241 will discharge the air after absorbing heat to the outside.

[0031] Example 2:

[0032] On the basis of Example 1, in this embodiment, the first transmission shaft 26 will rotate through the first bevel gear 76 and the second bevel gear 77 to drive the transmission vertical rod 73 to rotate, so that the transmission vertical rod 73 drives the exhaust fan blades 75 to rotate through the third bevel gear 78, the fourth bevel gear 79 and the second transmission shaft 711, thereby generating a negative pressure inside the exhaust pipe 71 to absorb most of the exhaust gas generated during the quenching and cooling process above the cooling pool body 1 for heat treatment, and the exhaust gas sucked into the exhaust pipe 71 will be guided to the outside exhaust gas treatment equipment through the exhaust pipe 72 for treatment, so as to ensure the respiratory health of the surrounding staff.

[0033] The exhaust assembly 7 includes an exhaust pipe 71, a transmission vertical rod 73, a support frame 74, an exhaust fan blade 75, a first bevel gear 76 and a second transmission shaft 711. The first transmission shaft 26 is provided with a first bevel gear 76 on the annular side surface. The first bevel gear 76 is connected to the first transmission shaft 26 by welding. The first bevel gear 76 drives the second bevel gear 77 to rotate. The upper side of the annular side surface of the first bevel gear 76 is engaged with the second bevel gear 77. The second bevel gear 77 drives the transmission vertical rod 73 to rotate. A transmission vertical rod 73 is provided on the upper end surface of the bevel gear 77. The transmission vertical rod 73 is connected to the second bevel gear 77, the third bevel gear 78 and the follower ring 731 by welding. The transmission vertical rod 73 will drive the third bevel gear 78 to rotate. The third bevel gear 78 is provided on the upper end of the transmission vertical rod 73. The third bevel gear 78 will drive the fourth bevel gear 79 to rotate. The fourth bevel gear 79 is engaged with the left side of the annular side of the third bevel gear 78. The fourth bevel gear 79 will drive the second transmission shaft 711 to rotate.

[0034] The left end face of the vertical plate 6 is fixedly connected to an exhaust pipe 71, and the exhaust pipe 71 will guide the inhaled exhaust gas into the exhaust pipe 72. A support frame 74 is installed inside the exhaust pipe 71, and the support frame 74 will support the limit plate 7111. A second transmission shaft 711 is installed at the rear end of the support frame 74. The second transmission shaft 711 is connected to the fourth bevel gear 79 and the limit plate 7111 by welding. The second transmission shaft 711 will drive the exhaust fan blade 75 to rotate. The exhaust fan blade 75 is installed at the rear end of the second transmission shaft 711. The inclination direction of the exhaust fan blade 75 is opposite to the inclination direction of the blade of the supply fan blade 27. The exhaust fan blade 75, whose blade inclination direction is opposite to the inclination direction of the blade of the supply fan blade 27, will blow air toward the rear side when it rotates. A limiting disk 7111 is installed at the front end of the second transmission shaft 711, and the limiting disk 7111 is embedded in the support frame 74, and an anti-detachment cover 741 is installed on the rear end face of the support frame 74. The limiting disk 7111 and the anti-detachment cover 741 prevent the second transmission shaft 711 from being displaced or shaking during rotation. A follower ring 731 is provided on the upper side of the annular side face of the transmission vertical rod 73, and a limiting cover 732 is installed on the lower end face of the exhaust pipe 71. The follower ring 731 and the limiting cover 732 prevent the transmission vertical rod 73 from being displaced during rotation. The rear end of the exhaust pipe 71 is connected to the exhaust pipe 72, and the outlet of the exhaust pipe 72 is connected to the inlet of the external exhaust gas treatment equipment. The exhaust pipe 72 will guide the exhaust gas to the inside of the external exhaust gas treatment equipment for treatment.

[0035] Working principle: When quenching and cooling the external die steel forgings, the staff first opens the refill valve 4 to add an appropriate amount of heat treatment oil to the heat treatment cooling pool body 1 (in this process, the heat treatment oil level cannot exceed the height of the refill valve 4). Then, the external die steel forgings to be heat treated can be placed in the heat treatment oil inside the heat treatment cooling pool body 1 with the help of an external electric hoist for quenching and cooling. Since the detailed steps and processes of quenching and cooling belong to the more mature technologies in the existing technology, they will not be described in detail here. At the same time, the staff starts the motor 25 and the external industrial air cooler, so that the motor 25 drives the fan blades 27 to rotate through the first transmission shaft 26 (the rotation direction of the fan blades 27 is in Figure 4The cooling air is then drawn into the heat treatment tank body 1 and the cooling air is then drawn out of the heat treatment tank body 1. The cooling air is then drawn into the heat treatment tank body 1 and the cooling air is then drawn out of the heat treatment tank body 1. Figure 4 At this time, the rotating exhaust fan blades 75 will generate negative pressure inside the exhaust pipe 71, sucking in most of the waste gas generated during the quenching and cooling process above the cooling pool body 1 for heat treatment. The waste gas sucked into the exhaust pipe 71 will be guided to the outside waste gas treatment equipment through the exhaust pipe 72 for treatment, so as to ensure the respiratory health of the surrounding staff.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A die steel forging heat treatment device, comprising a heat treatment cooling pool body (1), a drain valve (3), a refill valve (4), a grid plate (5) and a vertical plate (6), characterized in that: A liquid replenishing valve (4) is installed on the upper side of the front end surface of the heat treatment cooling pool body (1), a liquid draining valve (3) is installed on the lower side of the front end surface of the heat treatment cooling pool body (1), and a grid plate (5) is placed inside the heat treatment cooling pool body (1); A vertical plate (6) is fixedly connected to the rear side of the upper end surface of the heat treatment cooling pool body (1), and an exhaust assembly (7) for sucking and discharging gas generated during the cooling process is arranged on the rear end surface of the vertical plate (6). A cooling assembly (2) for assisting in cooling the heat treatment oil is arranged on the lower side of the interior of the heat treatment cooling pool body (1).

2. A die steel forging heat treatment device according to claim 1, characterized in that: The cooling component (2) comprises an air inlet pipe (21), an air guide tube (22), a heat absorption pipe (23), an air outlet pipe (24), a motor (25), a first transmission shaft (26) and a fan blade (27); the heat absorption pipe (23) is fixedly connected to the lower side of the interior of the heat treatment cooling pool body (1); the rear end of the heat absorption pipe (23) is fixedly connected to the air guide tube (22); the rear end of the air guide tube (22) is connected to the air inlet pipe (21); the motor (25) is installed inside the air guide tube (22); the front end of the motor (25) is installed with a first transmission shaft (26); the front end of the first transmission shaft (26) is installed with a fan blade (27); the front end of the heat absorption pipe (23) is fixedly connected to the air outlet pipe (24).

3. A die steel forging heat treatment device according to claim 2, characterized in that: The exhaust assembly (7) comprises an exhaust pipe (71), a transmission vertical rod (73), a support frame (74), an exhaust fan blade (75), a first bevel gear (76) and a second transmission shaft (711); the first transmission shaft (26) is provided with a first bevel gear (76) on an annular side surface; the upper side of the annular side surface of the first bevel gear (76) is meshed with a second bevel gear (77); the upper end surface of the second bevel gear (77) is provided with a transmission vertical rod (73); the upper end of the transmission vertical rod (73) is provided with a third bevel gear (78); the left side of the annular side surface of the third bevel gear (78) is meshed with a fourth bevel gear (79); the left end surface of the vertical plate (6) is fixedly connected with the exhaust pipe (71); the exhaust pipe (71) is installed with a support frame (74) inside; the rear end of the support frame (74) is installed with a second transmission shaft (711); the rear end of the second transmission shaft (711) is installed with an exhaust fan blade (75).

4. A die steel forging heat treatment device according to claim 3, characterized in that: A limit plate (7111) is installed at the front end of the second transmission shaft (711), and the limit plate (7111) is embedded in the support frame (74), and an anti-slip cover (741) is installed on the rear end surface of the support frame (74).

5. The die steel forging heat treatment device according to claim 3, characterized in that: A follower ring (731) is arranged on the upper side of the annular side surface of the transmission vertical rod (73), a limit cover (732) is installed on the lower end surface of the exhaust pipe (71), the rear end of the exhaust pipe (71) is connected to an exhaust pipe (72), and the outlet of the exhaust pipe (72) is connected to the inlet of an external exhaust gas treatment device.

6. A die steel forging heat treatment device according to claim 2, characterized in that: The front end of the air outlet cylinder (24) is connected to an air outlet pipe (241), and the outlet of the air outlet pipe (241) is connected to an external air outlet, and the inlet of the air inlet pipe (21) is connected to an external industrial air cooler outlet.

7. A die steel forging heat treatment device according to claim 2, characterized in that: The heat absorption pipe (23) is respectively connected to the air guide tube (22) and the air outlet tube (24); a plurality of the heat absorption pipes (23) are fixedly connected, and the specifications of the plurality of heat absorption pipes (23) are the same.

Images