Automatic quenching mechanism for continuous twice quenching of long rod piece

Abstract

The invention discloses an automatic quenching mechanism for continuous twice quenching of a long rod piece, which comprises two groups of heating mechanisms, two groups of soaking type cooling mechanisms and a cooling water circulation system, and the heating mechanisms and the soaking type cooling mechanisms are alternately distributed; a conveying mechanism penetrating through the heating mechanism and the water immersion type cooling mechanisms is arranged between the heating mechanism and the water immersion type cooling mechanisms, the long piece rods are conveyed through the conveying mechanism to sequentially penetrate through the heating mechanism and the water immersion type cooling mechanisms, and a cooling water circulation system is installed on each water immersion type cooling mechanism. And after heating, continuous quenching of the long rod piece is carried out in a water immersion quenching manner, so that high hardness and wear resistance of quenching are ensured.

Description

Technical Field

[0001] The invention relates to the field of mechanical processing equipment, and in particular to an automatic quenching mechanism for quenching a long rod twice in succession. Background Art

[0002] The pins used in tower cranes today require strong hardness and wear resistance. Before the pins are processed, the purchased raw material long rods need to be quenched. The current quenching of long rods mainly involves the long rods passing through multiple heating coils in sequence. The long rods are heated by the heating coils, and spray assemblies are provided at the ends of the multiple heating coils. The spray assemblies are used for cooling. This is how quenching is performed, but the long rods need to have high hardness and wear resistance. It is better to quench the long rods by immersion in water after heating. The above-mentioned continuous quenching mechanism for long rods cannot achieve water immersion quenching of the long rods. Summary of the invention

[0003] In view of the above-mentioned deficiencies of the prior art, the present invention proposes an automated quenching mechanism for quenching a long rod twice in succession, wherein the long rod is continuously quenched by immersion quenching after heating, thus ensuring high hardness and wear resistance of the quenching.

[0004] To achieve the above-mentioned purpose, the scheme of the present invention is: an automatic quenching mechanism for quenching a long rod twice continuously, comprising a heating mechanism, a water immersion cooling mechanism and a cooling water circulation system, wherein the heating mechanism and the water immersion cooling mechanism are each in two groups and the heating mechanism and the water immersion cooling mechanism are alternately distributed, a conveying mechanism passing through the heating mechanism and the water immersion cooling mechanism is arranged between the heating mechanism and the water immersion cooling mechanism, the long rod is conveyed by the conveying mechanism to pass through the heating mechanism and the water immersion cooling mechanism in sequence, and a cooling water circulation system is installed on each group of the water immersion cooling mechanism; The immersion cooling mechanism includes multiple cooling water tanks, translation components, lifting components and lifting components, wherein multiple cooling water tanks are arranged side by side on the ground, and a translation component is arranged between the bottom of the cooling water tank and the ground. The reciprocating translation of the cooling water tank is realized by the translation component, so that the multiple cooling water tanks and the heating mechanism are in the same straight line, and a lifting component is arranged above each cooling water tank, the lifting component is connected to the heating mechanism, the lifting component corresponds to the cooling water tank up and down, and a displacement component is arranged above the lifting component, and the synchronous movement of the lifting component and the cooling water tank is realized by the displacement component, and a lifting component is arranged above each group of lifting components.

[0005] Preferably, the lifting assembly includes a mounting frame, rollers and a lifting frame. A plurality of mounting frames are installed below the lifting frame, and rollers are installed on each mounting frame. A translation frame is provided on the top of the lifting frame, and a lifting assembly is provided between the translation frame and the lifting frame. When the mounting frame descends, the outer wall of the mounting frame rests against the inner wall of the cooling water tank. The displacement assembly includes a gantry and a sliding seat. A gantry is provided above the translation frame, and the sliding seat is installed on the translation frame. The top of the sliding seat is clamped on the gantry for movement.

[0006] Preferably, the cooling water tank is a rectangular water tank, and the top of one end of the cooling water tank and the bottom of the other end are connected to the cooling water circulation system; the translation assembly includes a translation track, a translation block and a translation drive assembly, the translation track is installed on the ground, the translation block is installed on the translation track, the translation block is installed at the bottom of the cooling water tank, and the translation drive assembly is arranged between the cooling water tank and the ground; the translation drive assembly includes a translation screw and a stepper motor, the output shaft of the stepper motor is installed with a translation screw, the translation screw is sleeved with a threaded sleeve and the screw The grooved sleeve is installed at the bottom of the cooling water tank, and travel switches are arranged on both sides of the multi-channel cooling water tank. When the side of the cooling water tank touches the travel switch, it stops moving, and the next movement will be in the opposite direction. A vertical long hole is opened on the side of each cooling water tank, and a sliding plate is installed on the inner side of the long hole. The sliding plate is longer than the long hole. A lifting block is installed in the long hole, a trigger block is installed on the outer wall of the lifting block, and a proximity switch is installed under the trigger block. The proximity switch is connected to the stepper motor, and the stepper motor is started by the proximity switch.

[0007] Preferably, the conveying mechanism is a plurality of groups of pulleys arranged side by side, each pulley is driven to rotate by a motor, and each pulley is provided with an annular V-shaped groove, and the plurality of pulleys located in the same group of heating mechanisms are mounted on a linkage rod, and a height adjustment assembly is provided between the linkage rod and the heating mechanism; a plurality of distance measuring sensors distributed in a ring array are provided on the periphery of the heating mechanism, the plurality of distance measuring sensors face the central axis of the heating mechanism and the distances between the plurality of distance measuring sensors and the central axis of the heating mechanism are consistent, and the distance measuring sensors are connected to the height adjustment assembly.

[0008] Preferably, a loading mechanism is docked at the front end of the first heating mechanism, and the loading mechanism includes an inclined placing table and a lifting baffle. The top surface of the placing table is an inclined surface, and the conveying mechanism extends forward to one side of the placing table. The long rod material on the placing table rolls onto the conveying mechanism through the inclined surface for conveying. Two groups of lifting baffles that can be lifted and lowered are installed at the bottom of the placing table, and the lifting baffles are used to unload the material onto the conveying mechanism one rod at a time; the rear end of the last immersion cooling mechanism is docked with a unloading mechanism, and the conveying mechanism extends backward. The unloading mechanism is installed at the end of the conveying mechanism, and a receiving table is arranged on one side of the end of the conveying mechanism, and the receiving table is also an inclined surface.

[0009] Preferably, the unloading mechanism includes a swinging unloading arm and a unloading baffle, wherein multiple groups of unloading arms are arranged between the pulleys of the conveying mechanism, and the multiple groups of unloading arms are rotatably connected to the conveying mechanism. A unloading baffle is arranged at the end of the conveying mechanism, and a long rod is against the unloading baffle, and the unloading baffle is slidably matched with the end of the conveying mechanism. A spring is arranged between the unloading baffle and the end of the conveying mechanism, and a rack that moves with the unloading baffle is installed at the bottom of the unloading baffle, and a gear that meshes with the rack is installed on each unloading arm, so that the unloading arm slowly rises to lift the long rod line upward and separate it from the pulley.

[0010] Preferably, a discharge plate is fixed to one end of the discharge arm away from the gear, and the discharge plate is raised by the rotation of the discharge arm. The top surface of the discharge plate is an inclined surface, and the discharge plate is inclined toward the receiving platform.

[0011] Compared with the prior art, the present invention has the advantage that the long rod is continuously quenched by water quenching after heating, thus ensuring high hardness and wear resistance of the quenching. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a top view of the present invention.

[0013] Figure 2 It is a schematic diagram of the feeding mechanism and the conveying mechanism of the present invention.

[0014] Figure 3 It is a schematic diagram of the heating mechanism and the conveying mechanism of the present invention.

[0015] Figure 4 It is a transverse schematic diagram of the lifting assembly and the cooling water tank of the present invention.

[0016] Figure 5 It is a left view of the lifting assembly and the cooling water tank of the present invention.

[0017] Figure 6 It is a schematic diagram of the long hole, the sliding plate, the lifting block, the trigger block and the proximity switch of the present invention.

[0018] Figure 7 It is a schematic diagram of the unloading mechanism and the conveying mechanism of the present invention.

[0019] Figure 8 It is a top view of the unloading mechanism and the conveying mechanism of the present invention.

[0020] Fig. 9 It is a cross-sectional view of the unloading mechanism and the conveying mechanism of the present invention.

[0021] Among them, 1. heating mechanism, 2. immersion cooling mechanism, 3. cooling water tank, 4. rectangular water tank, 5. long hole, 6. sliding plate, 7. lifting block, 8. trigger block, 9. proximity switch, 10. translation assembly, 11. translation track, 12. translation block, 13. translation drive assembly, 14. translation screw rod, 15. stepping motor, 16. travel switch, 17. lifting assembly, 18. mounting frame, 19. roller, 20. lifting frame, 21. translation frame, 22 , displacement assembly, 23, gantry, 24, sliding seat, 25, lifting assembly, 27, conveying mechanism, 28, pulley, 29, V-shaped groove, 30, linkage rod, 31, height adjustment assembly, 32, distance measuring sensor, 33, cooling water circulation system, 34, loading mechanism, 35, placement table, 36, lifting baffle, 37, unloading mechanism, 38, receiving table, 39, swing unloading arm, 40, unloading baffle, 41, rack, 42, gear, 43, unloading plate. DETAILED DESCRIPTION

[0022] The present invention is now further described with reference to the accompanying drawings.

[0023] like Figure 1-9 The invention discloses an automated quenching mechanism for quenching a long rod twice in a row, comprising a heating mechanism 1, a water immersion cooling mechanism 2 and a cooling water circulation system 33, wherein the heating mechanism 1 and the water immersion cooling mechanism 2 are both two groups and the heating mechanism 1 and the water immersion cooling mechanism 2 are alternately distributed, wherein the heating mechanism 1 is a plurality of groups of magnetic induction coils arranged side by side, when the long rod passes through the magnetic induction coils, the magnetic induction coils heat the long rod, and a conveying mechanism 27 passing through the heating mechanism 1 and the water immersion cooling mechanism 2 is arranged between the heating mechanism 1 and the water immersion cooling mechanism 2, and the long rod is conveyed by the conveying mechanism 27 to pass through the heating mechanism 1 and the water immersion cooling mechanism 2 in sequence. A cooling water circulation system 33 is installed on each group of immersion cooling mechanisms 2. When the long rods are quenched, the long rods are heated by the magnetic induction coils. When the long rods are heated by the magnetic induction coils, the temperature is relatively stable. When the long rods are heated to the range of 800-900°C, the conveying mechanism 27 conveys the long rods to the immersion cooling mechanism 2 for quenching and cooling. After quenching, the long rods are conveyed to the magnetic induction coils for secondary heating by the conveying mechanism 27. After the secondary heating, the long rods are conveyed to the immersion cooling mechanism 2 for secondary quenching. In this way, the hardness and wear resistance of the long rods are ensured by the secondary quenching. The immersion cooling mechanism 2 includes a plurality of cooling water tanks 3, a translation assembly 10, a lifting assembly 17 and a lifting assembly 25, wherein two cooling water tanks 3 are arranged side by side on the ground, a translation assembly 10 is arranged between the bottom of the cooling water tank 3 and the ground, and the left and right reciprocating translation of the cooling water tank 3 is realized by the translation assembly 10, so that the plurality of cooling water tanks 3 are sequentially in the same straight line with the heating mechanism 1 through the translation assembly 10, and a lifting assembly 17 is arranged above each cooling water tank 3, and the lifting assembly 17 and the heating mechanism 1 are connected to each other. The mechanism 1 is docked, the lifting assembly 17 corresponds to the cooling water tank 3 up and down, a displacement assembly 22 is arranged above the lifting assembly 17, and the lifting assembly 17 and the cooling water tank 3 are moved synchronously by the displacement assembly 22. A lifting assembly 25 is arranged above each group of lifting assemblies 17. When working, the long rod passing through multiple magnetic induction coils is transported to the lifting assembly 17 through the conveying mechanism 27 for lifting. When the long rod leaves the magnetic induction coil and is completely placed on the lifting assembly 17, the lifting assembly 17 The long rods are lowered into the cooling water tank 3 for immersion cooling, and the long rods are quenched by the water in the cooling water tank 3. The cooling water tank 3 moves to the left, so that the conveying mechanism 27 docks with the next group of lifting components 17, and the long rods passing through the magnetic induction coil are conveyed to the lifting component 17. When the heated long rods are conveyed to the lifting component 17, the long rods in the left cooling water tank 3 are quenched. When the long rods on the right lifting component 17 extend into the cooling water tank 3, the long rods in the left cooling water tank 3 are quenched. The left lifting assembly 17 rises, and the long rod is separated from the cooling water tank 3. At the same time, the cooling water tank 3 moves to the right, so that the lifting assembly 17 on the left is docked with the conveying mechanism 27. The heated long rod of the conveying mechanism 27 is conveyed to the lifting assembly 17, and the long rod on the lifting assembly 17 is pushed backward by the long rod at the front end of the lifting assembly 17. In this way, the long rod on the lifting assembly 17 is pushed to the rear end conveying mechanism 27 for secondary heating, and the long rod at the front end of the lifting assembly 17 replaces the long rod that has been quenched.

[0024] The lifting assembly 17 includes a mounting frame 18, a roller 19 and a lifting frame 20. Two groups of mounting frames 18 are installed below the lifting frame 20. Each group of mounting frames 18 includes two mounting frames 18 and the two groups of mounting frames 18 are arranged side by side. Each mounting frame 18 is a door-shaped frame. The multiple mounting frames 18 are fixed by a cross bar, that is, the two ends of the cross bar are fixed to the mounting frame 18 by welding. A roller 19 is installed below each group of mounting frames 18. The long rod is lifted by the roller 19. The lifting frame 20 A translation frame 21 is installed on the top by bolt fastening, and a lifting assembly 25 is arranged between the translation frame 21 and the lifting frame 20. The lifting assembly 25 is a lifting hydraulic cylinder. The cylinder body of the lifting hydraulic cylinder is installed on the translation frame 21 by bolts, and the top of the piston rod of the lifting hydraulic cylinder is installed on the mounting frame 18 by bolt fastening. The lifting of the mounting frame 18 is realized by the lifting hydraulic cylinder. In this way, the long rod on the lifting assembly 17 is immersed in the cooling water tank 3 for quenching. When the mounting frame 18 is lowered, The outer wall of the mounting frame 18 is against the inner wall of the cooling water tank 3; the displacement assembly 22 includes a gantry 23 and a sliding seat 24. The gantry 23 is mounted above the translation frame 21, and the bottom of the gantry 23 is installed on the ground by bolt fastening. The sliding seat 24 is installed on the translation frame 21, and a convex slide rail is installed on the bottom of the gantry 23 by bolt fastening. A convex groove is opened on the top of the sliding seat 24, and the top of the sliding seat 24 is clamped on the convex slide rail for movement, and the bottom of the sliding seat 24 is fixed by A translation frame 21 is installed by bolts, and pull rods are installed between the two ends of the translation frame 21 and the outer wall of the sliding seat 24 by bolt fastening. When working, when the long rod on the lifting assembly 17 needs to be quenched, the lifting assembly 25 lowers the lifting assembly 17, and the mounting frame 18 of the lifting assembly 17 moves downward, and the outer wall of the mounting frame 18 is pressed against the inner wall of the cooling water tank. When the cooling water tank 3 translates left and right, the lifting assembly 17 translates synchronously through the mounting frame 18.

[0025] The cooling water tank 3 is a rectangular water tank 4. The top of one end of the cooling water tank 3 and the bottom of the other end are connected to the cooling water circulation system 33. The cooling water circulation system 33 is a condenser. The water inlet pipe and the water outlet pipe of the condenser are respectively connected and connected to the front and rear ends of the cooling water tank 3, so that the water in the cooling water tank 3 is cooled and input into the cooling water tank 3, so that the circulation of cooling water is realized; the translation assembly 10 includes a translation track 11, a translation block 12 and a translation drive assembly 13. The translation track 11 is horizontally installed on the ground by bolts. A translation block 12 that moves on the translation track 11 is clamped on the translation track 11. The translation block 12 is installed at the bottom of the cooling water tank 3 by bolts. The cooling water tank 3 is driven to translate by the translation block 12. A translation drive assembly 13 is provided between the water tank 3 and the ground, and the translation block 12 is translated back and forth by the translation drive assembly 13; the translation drive assembly 13 includes a translation screw 14 and a stepper motor 15, and the translation screw 14 is installed on the output shaft of the stepper motor 15 by welding, and a threaded sleeve is sleeved on the translation screw 14 (the translation screw 14 and the threaded sleeve are threadedly matched), and the threaded sleeve is installed on the bottom of the cooling water tank 3 by bolting, and the cooling water tank 3 is driven to move left and right by the movement of the threaded sleeve. A travel switch 16 (the model of the travel switch 16 is WLNJ-TH-N travel switch 16) facing the side wall of the cooling water tank 3 is fixed on the ground on the left and right sides of the multi-channel cooling water tank 3 by bolting. When the two cold-cut water tanks move to the right, the cooling water tank 3 on the right side contacts the travel switch 16 on the right side, so that the travel switch 16 on the right side is triggered, and the stepping motor 15 that drives the translation screw 14 to rotate stops working, so that the cooling water tank 3 stops moving, and the next movement will be in the opposite direction (that is, the cooling water tank 3 moves to the left). A vertical long hole 5 is opened on the side of each cooling water tank 3, and a sliding plate 6 is installed on the inner side of the long hole 5. The sliding plate 6 fits the inner wall of the cooling water tank 3. When the sliding plate 6 slides up and down, the long hole 5 is always covered by the sliding plate 6, so that the long hole 5 will not leak. The sliding plate 6 is longer than the long hole 5. A lifting block 7 that slides up and down in the long hole 5 is stuck in the long hole 5. A tension spring is fixed between the top of the long hole 5 by welding, and a trigger block 8 is fixed to the outer wall of the lifting block 7 by welding. The trigger block 8 protrudes from the outer wall of the cooling water tank 3. A proximity switch 9 is installed below the trigger block 8. The proximity switch 9 is installed on the outer wall of the cooling water tank by bolt fastening. The proximity switch 9 is located at the bottom of the long hole 5. When the lifting block 7 descends to the bottom of the long hole 5, the trigger block 8 presses on the proximity switch 9, so that the proximity switch 9 is triggered, wherein the travel switch 16 and the proximity switch 9 are connected to the input end of the controller (PLC) through wires, and the lifting component 25 and the stepper motor 15 (the encoder of the stepper motor 15 is connected to the controller) are connected to the input end of the controller. When working,The lifting assembly 17 on the right side is docked with the conveying mechanism 27. When the long rod is conveyed to the lifting assembly 17, the lifting assembly 25 lowers the lifting assembly 17, so that the mounting frame 18 of the lifting assembly 17 is lowered and extends into the cooling water tank. The mounting frame 18 is lowered, so that the mounting frame 18 presses the sliding plate 6 downward, so that the trigger block 8 moves downward and is triggered, so that the stepper motor 15 is started, and the cooling water tank is driven to move to the right through the translation screw 14. When the cooling water tank 3 moves to the right and triggers the travel switch 16 on the right, the stepper motor 15 stops working. When the lifting assembly 17 is lowered and extends into the left cooling water tank 3, the proximity switch 9 on the left cooling water tank 3 is triggered, so that the stepper motor 15 starts and rotates in the opposite direction, so that the cooling water tank 3 moves to the left. When the cooling water tank 3 moves to the left and contacts the travel switch 16 on the left, the travel switch 16 is triggered, so that the stepper motor 15 stops working, thus realizing the left and right movement of the cooling water tank 3.

[0026] The conveying mechanism 27 is a plurality of pulleys 28 arranged side by side in front and back, each pulley 28 is driven to rotate by a motor (the pulley 28 is fixed to the output shaft of the motor by welding, so that the roller of the pulley 28 is realized), and an annular V-shaped groove 29 is opened on each pulley 28 to facilitate the center positioning of the long rod. The plurality of pulleys 28 located in the same group of heating mechanisms 1 are installed on the linkage rod 30 (two linkage rods 30 are arranged on the left and right sides of the same group of heating mechanisms 1, and the plurality of pulleys 28 are installed on the two linkage rods 30 through bearings, and a plurality of vertical guide rods arranged at equal intervals are installed on the table by bolt fastening, and the vertical guide rods pass through the linkage rods 30. Rod 30, so that the linkage rod 30 is lifted and lowered along the vertical guide rod), a height adjustment component 31 is arranged between the linkage rod 30 and the heating mechanism 1, and multiple heating mechanisms 1 are installed on the table by bolt fastening. The height adjustment component 31 includes a lifting screw, a servo motor and a lifting sleeve, wherein two synchronous servo motors are installed on the table, the servo motor and the output end of the controller are connected by a wire, and the number of revolutions of the servo motor is realized by the controller, and a gear 42 is installed on the output shaft of the servo motor, and multiple vertically arranged lifting screws are installed on the table through bearings, and a lifting sleeve (lifting sleeve) is sleeved on each lifting screw. The lifting sleeve is threadedly matched with the lifting screw, so that the lifting sleeve is lifted and lowered by the rotation of the lifting screw), the lifting sleeve is installed on the linkage rod 30 by bolt fastening, the bottom of the lifting screw and the sprocket on the output shaft of the servo motor are fixed by welding, and the sprocket under the same linkage rod 30 is driven by chain meshing, so that multiple linkage rods 30 can be lifted and lowered synchronously; three distance measuring sensors 32 (VDM28-15-L1-IO / 73c / 110 / 122 laser distance measuring sensors 32) distributed in a ring array are installed on the periphery of the heating mechanism 1 by bolt fastening, and one distance measuring sensor 32 is located at the heating mechanism The plurality of distance measuring sensors 32 are oriented toward the central axis of the heating mechanism 1 and are at the same distance from the central axis of the heating mechanism 1. The distance measuring sensors 32 are connected to the input end of the controller, and the output end of the controller is connected to the servo motor. The distances between the plurality of distance measuring sensors 32 and the long rod are measured. When the long rod is not coaxial with the heating mechanism 1, there is a difference between the distances measured by the distance measuring sensors 32 at the top and the distance measuring sensors 32 at the two sides. In this way, the height of the pulley 28 is adjusted by the servo motor to achieve the consistency of the measured distances of the three distance measuring sensors 32.

[0027] A feeding mechanism 34 is connected to the front end of the first heating mechanism 1. The feeding mechanism 34 includes an inclined placement table 35 and a lifting baffle 36. The top surface of the placement table 35 is an inclined surface. The conveying mechanism 27 extends forward to the left side of the placement table 35. The long rod material on the placement table 35 rolls onto the conveying mechanism 27 through the inclined surface for conveying. Two groups of lifting baffles 36 that can be lifted and lowered are installed at the bottom of the placement table 35. The two groups of lifting baffles 36 are arranged opposite to each other on the left and right. One group of lifting baffles 36 is installed on the leftmost end surface of the placement table 35, and the other group of lifting baffles 36 is installed on the leftmost end surface of the placement table 35. The lowering baffle 36 passes through the placement table 35, and the spacing between the two sets of lifting baffles 36 is the diameter of the long rod. The lifting baffle 36 is lifted and lowered in an offset manner to achieve one rod each time being unloaded onto the conveying mechanism 27; the rear end of the last immersion cooling mechanism 2 is connected to a discharge mechanism 37, and the conveying mechanism 27 extends backward. The discharge mechanism 37 is installed at the end of the conveying mechanism 27, and a receiving platform 38 is provided on the ground on the right side of the end of the conveying mechanism 27. The receiving platform 38 is also an inclined surface, and the quenched long rod is received through the receiving platform 38.

[0028] The unloading mechanism 37 includes a swinging unloading arm 39 and a unloading baffle 40, wherein a plurality of unloading arms are arranged between the pulleys 28 of the conveying mechanism 27, and the plurality of unloading arms are rotatably connected to the conveying mechanism 27, that is, a rotating shaft is fixed to one end of the unloading arm by welding, and both ends of the rotating shaft are mounted on the linkage rod 30 by bearings, and a unloading baffle 40 is arranged at the end of the conveying mechanism 27, and a long rod member is pressed against the unloading baffle 40, and the unloading baffle 40 is slidably matched with the end of the conveying mechanism 27 (that is, a sliding sleeve is sleeved at the end of the linkage rod 30 of the conveying mechanism 27, and the unloading baffle 40 is fixed to the two sliding sleeves by bolts), and a spring is welded between the unloading baffle 40 and the end of the conveying mechanism 27, and the unloading baffle 40 is pushed forward by the spring, and a spring is provided at the bottom of the unloading baffle 40. A rack 41 is installed by bolt fastening, and a gear 42 meshing with the rack 41 is installed on each unloading arm by welding. The gear 42 is coaxial with the rotating shaft. In this way, the unloading arm slowly rises to lift the long rod linearly upward and separate it from the pulley 28. When the long rod abuts against the unloading baffle 40 and continues to move backward, the unloading baffle 40 slides backward and moves backward through the rack 41. In this way, the unloading arm slowly swings upward and moves the long rod to the lower platform. When the long rod is separated from the pulley 28, the front long rod abuts against the long rod, so that the long rod with the unloading baffle 40 continues to move backward, and the unloading arm swings upward at the same time. When the two long rods are misaligned up and down, the long rod in contact with the unloading baffle 40 stops conveying backward, and the long rod on the unloading arm rolls onto the receiving platform 38.

[0029] A discharge plate 43 is fixed to one end of the discharge arm away from the gear 42 by welding. The discharge plate 43 is raised by rotating the discharge arm. The top surface of the discharge plate 43 is an inclined surface. The discharge plate 43 is inclined toward the receiving platform 38. When the bottom of the long rod is higher than the pulley 28, the long rod rolls to the right under the action of the inclined surface of the discharge plate 43.

Claims

1. An automated quenching mechanism for quenching a long rod twice in a row, comprising a heating mechanism, a water immersion cooling mechanism and a cooling water circulation system, wherein the heating mechanism and the water immersion cooling mechanism are each in two groups and the heating mechanism and the water immersion cooling mechanism are alternately arranged, a conveying mechanism passing through the heating mechanism and the water immersion cooling mechanism is arranged between the heating mechanism and the water immersion cooling mechanism, the long rod is conveyed by the conveying mechanism to pass through the heating mechanism and the water immersion cooling mechanism in sequence, and a cooling water circulation system is installed on each group of the water immersion cooling mechanism; It is characterized in that The immersion cooling mechanism includes multiple cooling water tanks, translation components, lifting components and lifting components, wherein multiple cooling water tanks are arranged side by side on the ground, and a translation component is arranged between the bottom of the cooling water tank and the ground. The reciprocating translation of the cooling water tank is realized by the translation component, so that the multiple cooling water tanks and the heating mechanism are in the same straight line, and a lifting component is arranged above each cooling water tank, the lifting component is connected to the heating mechanism, the lifting component corresponds to the cooling water tank up and down, and a displacement component is arranged above the lifting component, and the synchronous movement of the lifting component and the cooling water tank is realized by the displacement component, and a lifting component is arranged above each group of lifting components.

2. The automatic quenching mechanism for quenching a long rod twice in a row according to claim 1, characterized in that: The lifting assembly includes a mounting frame, rollers and a lifting frame. Multiple groups of mounting frames are installed below the lifting frame, and rollers are installed on each group of mounting frames. A translation frame is arranged on the top of the lifting frame, and a lifting assembly is arranged between the translation frame and the lifting frame. When the mounting frame descends, the outer wall of the mounting frame rests on the inner wall of the cooling water tank; the displacement assembly includes a gantry and a sliding seat. A gantry is arranged above the translation frame, and the sliding seat is installed on the translation frame. The top of the sliding seat is clamped on the gantry for movement.

3. The automatic quenching mechanism for quenching a long rod twice in a row according to claim 2, characterized in that: The cooling water tank is a rectangular water tank, and the top of one end of the cooling water tank and the bottom of the other end are connected to the cooling water circulation system; the translation assembly includes a translation track, a translation block and a translation drive assembly, the translation track is installed on the ground, the translation block is installed on the translation track, the translation block is installed at the bottom of the cooling water tank, and the translation drive assembly is arranged between the cooling water tank and the ground; the translation drive assembly includes a translation screw and a stepper motor, the output shaft of the stepper motor is installed with a translation screw, the translation screw is sleeved with a threaded sleeve and the threaded sleeve The cylinder is installed at the bottom of the cooling water tank, and travel switches are arranged on both sides of the multi-channel cooling water tank. When the side of the cooling water tank touches the travel switch, it stops moving, and the next movement will be in the opposite direction. A vertical long hole is opened on the side of each cooling water tank, and a sliding plate is installed on the inner side of the long hole. The sliding plate is longer than the long hole. A lifting block is installed in the long hole, and a trigger block is installed on the outer wall of the lifting block. A proximity switch is installed under the trigger block. The proximity switch is connected to the stepper motor, and the stepper motor is started by the proximity switch.

4. The automatic quenching mechanism for quenching a long rod twice in a row according to claim 3, characterized in that: The conveying mechanism is a plurality of groups of pulleys arranged side by side, each pulley is driven to rotate by a motor, and each pulley is provided with an annular V-shaped groove. The plurality of pulleys located in the same group of heating mechanisms are mounted on a linkage rod, and a height adjustment component is provided between the linkage rod and the heating mechanism; a plurality of distance measuring sensors distributed in a ring array are provided on the periphery of the heating mechanism, the plurality of distance measuring sensors face the central axis of the heating mechanism and the distances between the plurality of distance measuring sensors and the central axis of the heating mechanism are consistent, and the distance measuring sensors are connected to the height adjustment component.

5. The automatic quenching mechanism for quenching a long rod twice in a row according to claim 4, characterized in that: The front end of the first heating mechanism is connected to a loading mechanism, which includes an inclined placing table and a lifting baffle. The top surface of the placing table is an inclined surface, and the conveying mechanism extends forward to one side of the placing table. The long rod material on the placing table rolls to the conveying mechanism through the inclined surface for conveying. Two groups of lifting baffles that can be lifted and lowered are installed at the bottom of the placing table. The lifting baffles are used to unload the material onto the conveying mechanism one rod at a time; the rear end of the last immersion cooling mechanism is connected to a unloading mechanism, and the conveying mechanism extends backward. The unloading mechanism is installed at the end of the conveying mechanism, and a receiving table is provided on one side of the end of the conveying mechanism, and the receiving table is also an inclined surface.

6. The automatic quenching mechanism for quenching a long rod twice in succession according to claim 5, characterized in that: The unloading mechanism includes a swinging unloading arm and a unloading baffle, wherein multiple groups of unloading arms are arranged between the pulleys of the conveying mechanism, and the multiple groups of unloading arms are rotatably connected to the conveying mechanism. A unloading baffle is arranged at the end of the conveying mechanism, and a long rod is against the unloading baffle. The unloading baffle is slidably matched with the end of the conveying mechanism. A spring is arranged between the unloading baffle and the end of the conveying mechanism, and a rack that moves with the unloading baffle is installed at the bottom of the unloading baffle, and a gear that meshes with the rack is installed on each unloading arm, so that the unloading arm slowly rises to lift the long rod line upward and separate it from the pulley.

7. The automatic quenching mechanism for quenching a long rod twice in succession according to claim 6, characterized in that: A discharge plate is fixed on one end of the discharge arm away from the gear. The discharge plate is lifted by the rotation of the discharge arm. The top surface of the discharge plate is an inclined surface, and the discharge plate is inclined toward the receiving platform.

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