Vacuum heat treatment furnace with rapid cooling function

Abstract

The utility model discloses a vacuum heat treatment furnace with a quick cooling function, which comprises a fixed cylinder, a cooling mechanism is arranged in the fixed cylinder, the cooling mechanism comprises rotating pipes uniformly arranged in the fixed cylinder, and two ends of each rotating pipe extend to the outside of the fixed cylinder. The outer wall of the circumferential side face of the rotating pipe is rotationally connected into the fixed cylinder, openings are evenly formed between the inner wall and the outer wall of the circumferential side face of the rotating pipe, and the outer wall of the circumferential side face of the rotating pipe is slidably connected with a containing box. Through the arrangement of the rotating pipe, the opening and closing plate is opened, a machined part is placed on the rotating pipe after being placed in the placing box, the opening and closing plate is closed, the heating wire is started to conduct heat treatment on the machined part, the first pump is started after heat treatment is finished, and the first pump drives inert gas to enter the gas box through the first fixing pipe and the second fixing pipe; and inert gas is blown to the containing box along the rotating pipe and the opening, so that the inert gas rapidly cools the machined part in the containing box.

Description

Technical Field

[0001] This utility model relates to the field of heat treatment furnace technology, and in particular to a vacuum heat treatment furnace with rapid cooling function. Background Technology

[0002] After the heat treatment furnace has finished processing the workpiece, inert gas is required as a cooling medium to cool the workpiece.

[0003] A search revealed a utility model patent with application number 202222824164.9 entitled "Rapid Cooling Air Duct Mechanism for Heat Treatment Furnace." This patented device, through the cooperation of the furnace body and the internal circulating air cooling system, enables the heat treatment furnace to better meet the requirements of rapid cooling during the heat treatment of special products, reducing the possibility of scrap due to unqualified heat treatment processes, thereby enhancing the heat treatment furnace's ability to produce products that meet the heat treatment process requirements of special products.

[0004] However, this patented device cannot blow inert gas into the interior of the stacked workpieces, resulting in inconsistent cooling rates between the inside and outside of the workpieces, which affects the device's cooling effect on the workpieces. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a vacuum heat treatment furnace with rapid cooling function.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A vacuum heat treatment furnace with rapid cooling function includes a fixed cylinder. A cooling mechanism is provided inside the fixed cylinder. The cooling mechanism includes a rotating tube evenly arranged inside the fixed cylinder. Both ends of the rotating tube extend to the outside of the fixed cylinder. The outer wall of the circumferential side of the rotating tube is rotatably connected to the inside of the fixed cylinder. An opening is evenly provided between the inner wall and the outer wall of the circumferential side of the rotating tube. A placement box is slidably connected to the outer wall of the circumferential side of the rotating tube. A through groove is evenly provided between the inner wall and the outer wall of the bottom of the placement box.

[0008] Preferably, a base is fixedly connected to the outer wall of the circumferential side of the fixed cylinder, a pump is fixedly connected inside the base, a fixed pipe is fixedly connected to both ends of the pump, and an air box aligned with the rotating pipe is fixedly connected to the outer wall of the circumferential side of the other end of the fixed pipe.

[0009] Preferably, both ends of the circumferential side of the rotating tube are rotatably connected to the inner side wall of the air box, one end of the pump is fixedly connected to the fixing tube, and the other end of the fixing tube extends to the outside of the base.

[0010] Preferably, an air groove is provided inside the side of the fixed cylinder, and slots are evenly provided between the inner and outer walls of the air groove. A second pump, aligned with the air groove, is fixedly connected to the outer wall of the side of the fixed cylinder. A third fixed pipe is fixedly connected to one end of the second pump, and a fourth fixed pipe is fixedly connected to the other end of the second pump. The other end of the fourth fixed pipe is fixedly connected to the inner wall of the side of the air groove.

[0011] Preferably, a heat-insulating cylinder is fixedly connected to the inner wall of the side of the fixed cylinder, and the outer wall of the circumferential side of the rotating tube is rotatably connected to the inside of the heat-insulating cylinder. Heating wires are uniformly fixedly connected to the inner wall of the circumferential side of the heat-insulating cylinder, and an opening and closing plate is detachably connected to one end of the inner wall of the circumferential side of the fixed cylinder.

[0012] Preferably, motors are uniformly fixedly connected to the side walls of the opening and closing plate and the side walls of the fixed cylinder. The output shaft of the motor is fixedly connected to a lead screw. A movable frame is threadedly connected to the circumferential side of the lead screw. The tops of the two movable frames are slidably connected to the inside of the opening and closing plate and the inside of the side of the fixed cylinder, respectively.

[0013] Preferably, one end of the movable frame is fixedly connected to a push plate located inside the fixed cylinder, and the side of the push plate abuts against the outer side wall of the placement box.

[0014] Compared with the prior art, this utility model provides a vacuum heat treatment furnace with rapid cooling function, which has the following beneficial effects:

[0015] The rotating tube opens the hinged plate, and the workpiece is placed in the placement box onto the rotating tube. The plate is then closed, and the heating wire is activated to heat-treat the workpiece. After heat treatment, pump one is activated, which carries inert gas through fixed pipes one and two into the gas box. The inert gas is blown along the rotating tube and opening into the placement box, rapidly cooling the workpiece. Simultaneously, the inert gas is blown into the interior of the placement box through the through-slot to cool the internal workpiece. This prevents the device from failing to blow inert gas into the accumulated workpiece, which could lead to uneven cooling rates between the inside and outside of the workpiece, affecting the device's effectiveness in treating the workpiece. The cooling effect is achieved by starting the motor, which drives the lead screw to rotate, which in turn drives the moving frame to move, which in turn drives the push plate to move, which in turn drives the placement box to move back and forth. The placement box causes the internal workpieces to shake back and forth, thus creating gaps between the workpieces. Inert gas then enters the interior of the accumulated workpieces through these gaps to cool them down. This helps to prevent the accumulated workpieces from not being able to come into sufficient contact with the inert gas, which would prevent the workpieces from cooling down synchronously and affect the cooling effect of the device. Pump 2 is then started, which drives the inert gas carrying heat through the slot, fixed pipe 4, and fixed pipe 3 to exit the device. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the overall structure of a vacuum heat treatment furnace with rapid cooling function proposed in this utility model.

[0017] Figure 2 This is a schematic diagram of the internal structure of a vacuum heat treatment furnace with rapid cooling function proposed in this utility model.

[0018] Figure 3 This is a partial structural diagram of a vacuum heat treatment furnace with rapid cooling function proposed in this utility model.

[0019] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0020] In the diagram: 1-Fixed cylinder, 2-Base, 3-Pump I, 4-Fixed pipe I, 5-Insulation cylinder, 6-Motor, 7-Screw rod, 8-Moving frame, 9-Air tank, 10-Fixed pipe III, 11-Fixed pipe IV, 12-Pump II, 13-Slotted, 14-Push plate, 15-Placement box, 16-Rotating pipe, 17-Opening and closing plate, 18-Air box, 19-Fixed pipe II, 20-Heating wire, 21-Opening, 22-Through groove. Detailed Implementation

[0021] Example, refer to Figure 1-4 A vacuum heat treatment furnace with rapid cooling function includes a fixed cylinder 1. A cooling mechanism is provided inside the fixed cylinder 1. The cooling mechanism includes a rotating tube 16 evenly arranged inside the fixed cylinder 1. Both ends of the rotating tube 16 extend to the outside of the fixed cylinder 1. The outer wall of the circumferential side of the rotating tube 16 is rotatably connected to the inside of the fixed cylinder 1. An opening 21 is evenly opened between the inner wall and the outer wall of the circumferential side of the rotating tube 16. A placement box 15 is slidably connected to the outer wall of the circumferential side of the rotating tube 16. A through groove 22 is evenly opened between the inner wall and the outer wall of the bottom of the placement box 15.

[0022] In this utility model, a base 2 is fixedly connected to the outer wall of the circumferential side of the fixed cylinder 1, a pump 3 is fixedly connected inside the base 2, a fixed pipe 19 is fixedly connected to both ends of the pump 3, and an air box 18 aligned with the rotating pipe 16 is fixedly connected to the outer wall of the circumferential side of the other end of the fixed pipe 19.

[0023] Both ends of the circumferential side of the rotating tube 16 are rotatably connected to the inner side wall of the air box 18. One end of the pump 3 is fixedly connected to the fixing tube 4, and the other end of the fixing tube 4 extends to the outside of the base 2.

[0024] An air groove 9 is provided inside the side of the fixed cylinder 1. A slot 13 is evenly provided between the inner and outer walls of the side of the air groove 9. A second pump 12 aligned with the air groove 9 is fixedly connected to the outer wall of the side of the fixed cylinder 1. A third fixed pipe 10 is fixedly connected to one end of the second pump 12. A fourth fixed pipe 11 is fixedly connected to the other end of the second pump 12. The other end of the fourth fixed pipe 11 is fixedly connected to the inner wall of the side of the air groove 9.

[0025] A heat-insulating cylinder 5 is fixedly connected to the inner wall of the side of the fixed cylinder 1. The outer wall of the circumferential side of the rotating tube 16 is rotatably connected to the inside of the heat-insulating cylinder 5. Heating wires 20 are evenly fixedly connected to the inner wall of the circumferential side of the heat-insulating cylinder 5. An opening and closing plate 17 is detachably connected to one end of the inner wall of the circumferential side of the fixed cylinder 1.

[0026] Motors 6 are uniformly fixedly connected to the side of the opening and closing plate 17 and the outer side of the fixed cylinder 1. The output shaft of the motor 6 is fixedly connected to a lead screw 7. A movable frame 8 is threadedly connected to the circumferential side of the lead screw 7. The tops of the two movable frames 8 are respectively slidably connected to the inside of the opening and closing plate 17 and the inside of the side of the fixed cylinder 1.

[0027] One end of the movable frame 8 is fixedly connected to a push plate 14 located inside the fixed cylinder 1, and the side of the push plate 14 abuts against the outer side wall of the placement box 15.

[0028] Working principle: Open the opening plate 17, place the workpiece into the placement box 15 and then place it on the rotating tube 16. Close the opening plate 17, start the heating wire 20 to heat treat the workpiece. After the heat treatment, start the pump 3. The pump 3 drives inert gas through the fixed tube 4 and the fixed tube 2 19 into the gas box 18. The inert gas is blown along the rotating tube 16 and the opening 21 towards the placement box 15, so that the inert gas can quickly cool the workpiece in the placement box 15. At the same time, the inert gas is blown into the interior of the placement box through the through groove 22 to cool the workpiece inside. This helps to prevent the device from being unable to blow inert gas into the accumulated workpiece, which would cause the temperature of the workpiece inside and outside to be inconsistent, affecting the device's treatment of the workpiece. To achieve the cooling effect, motor 6 is started, which drives the lead screw 7 to rotate. The lead screw 7 drives the moving frame 8 to move, which in turn drives the push plate 14 to move. The push plate 14 drives the placement box 15 to move back and forth, causing the internal workpieces to shake back and forth. This creates gaps between the workpieces, allowing inert gas to enter the interior of the accumulated workpieces through these gaps for cooling. This helps prevent the accumulated workpieces from not being able to contact the inert gas sufficiently, which would prevent the workpieces from cooling down synchronously and affect the cooling effect of the device. Pump 2 12 is started, which drives the inert gas carrying heat through the slot 13, fixed pipe 4 11, and fixed pipe 3 10 to exit the device.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A vacuum heat treatment furnace with rapid cooling function, comprising a fixed cylinder (1), characterized in that, The fixed cylinder (1) is provided with a cooling mechanism. The cooling mechanism includes a rotating tube (16) evenly arranged inside the fixed cylinder (1). Both ends of the rotating tube (16) extend to the outside of the fixed cylinder (1). The outer wall of the circumferential side of the rotating tube (16) is rotatably connected to the inside of the fixed cylinder (1). An opening (21) is evenly opened between the inner wall and the outer wall of the circumferential side of the rotating tube (16). A placement box (15) is slidably connected to the outer wall of the circumferential side of the rotating tube (16). A through groove (22) is evenly opened between the inner wall and the outer wall of the bottom of the placement box (15).

2. A vacuum heat treatment furnace with rapid cooling function according to claim 1, characterized in that, The outer wall of the circumferential side of the fixed cylinder (1) is fixedly connected to the base (2), and the inside of the base (2) is fixedly connected to the pump (3). Both ends of the pump (3) are fixedly connected to the fixed pipe (19), and the outer wall of the circumferential side of the other end of the fixed pipe (19) is fixedly connected to the air box (18) aligned with the rotating pipe (16).

3. A vacuum heat treatment furnace with rapid cooling function according to claim 2, characterized in that, Both ends of the circumferential side of the rotating tube (16) are rotatably connected to the inner side wall of the air box (18). One end of the pump (3) is fixedly connected to the fixing tube (4), and the other end of the fixing tube (4) extends to the outside of the base (2).

4. A vacuum heat treatment furnace with rapid cooling function according to claim 3, characterized in that, The fixed cylinder (1) has an air groove (9) inside its side. The inner and outer walls of the air groove (9) are evenly grooved (13). The outer wall of the fixed cylinder (1) is fixedly connected to a second pump (12) aligned with the air groove (9). One end of the second pump (12) is fixedly connected to a third fixed pipe (10), and the other end of the second pump (12) is fixedly connected to a fourth fixed pipe (11). The other end of the fourth fixed pipe (11) is fixedly connected to the inner wall of the side of the air groove (9).

5. A vacuum heat treatment furnace with rapid cooling function according to claim 4, characterized in that, The inner wall of the side of the fixed cylinder (1) is fixedly connected to the heat insulation cylinder (5), and the outer wall of the circumferential side of the rotating tube (16) is rotatably connected to the inside of the heat insulation cylinder (5). The inner wall of the circumferential side of the heat insulation cylinder (5) is uniformly fixedly connected to the heating wire (20), and one end of the inner wall of the circumferential side of the fixed cylinder (1) is detachably connected to the opening and closing plate (17).

6. A vacuum heat treatment furnace with rapid cooling function according to claim 5, characterized in that, Motors (6) are uniformly fixedly connected to the side of the opening and closing plate (17) and the outer side of the fixed cylinder (1). The output shaft of the motor (6) is fixedly connected to a lead screw (7). A movable frame (8) is threadedly connected to the circumferential side of the lead screw (7). The tops of the two movable frames (8) are respectively slidably connected to the inside of the opening and closing plate (17) and the inside of the side of the fixed cylinder (1).

7. A vacuum heat treatment furnace with rapid cooling function according to claim 6, characterized in that, One end of the movable frame (8) is fixedly connected to a push plate (14) located inside the fixed cylinder (1), and the side of the push plate (14) abuts against the outer side wall of the placement box (15).

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