Composite steel quenching device
By designing a composite steel quenching device, using automatic cutting and self-balancing quenching liquid-liquid level technology, the problem of increasing post-quenching and inability to be carried out continuously in the steel bar quenching is solved, and an efficient and automated quenching process is achieved, reducing production costs and working efficiency.
Patent Information
- Application Number
- CN202010551920.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-06-17
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2040-06-17
AI Technical Summary
In the prior art, the difficulty of post-quenching of steel bars increases, and the quenching operation cannot be carried out continuously, resulting in an increase in production costs and a decrease in working efficiency.
A composite steel quenching device is designed to send the heated steel bars into the quenching box through a conveyor belt, and automatic cutting and quenching of the steel bars is achieved by using guide rods, mounting blocks and cutting blocks to ensure the self-balancing of the quenching liquid level, avoiding the quenching liquid overflow, and collecting and processing steam through the collection plate and nozzle system to achieve automatic quenching operation.
Automatic cutting and quenching of steel bars after quenching is realized, which reduces production costs, improves work efficiency, avoids waste and pollution of quenching liquid, and ensures the continuity and automation of quenching operations.
Smart Images
Figure CN111560500B_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of metal surface heat treatment, in particular to a composite steel quenching device. Background Art
[0002] Quenching is a heat treatment process method that heats steel to above the critical temperature, keeps it warm for a certain period of time, and then cools it at a rate greater than the critical cooling rate to obtain an unbalanced structure dominated by martensite (bainite can also be obtained or single-phase austenite can be maintained as needed). Quenching is the most widely used process method in steel heat treatment. In the existing quenching process, most of the treatment of composite steel bars is direct quenching. After quenching, the steel bars are cut into the required specifications. However, this method has defects. The performance of the steel bars after quenching is greatly improved, the cutting process becomes more difficult, the cutting tool loss is accelerated, and the cost of production and use is increased.
[0003] There are also some solutions in the prior art, such as the Chinese patent with application number CN201920526947.4, which includes a working base, a hydraulic telescopic cylinder is fixedly installed in the middle of the top of the working base, and a rotating support platform is fixedly connected to the top of the hydraulic telescopic cylinder. The middle of the top of the rotating support platform is movably connected to a quenching turntable by installing a rotating shaft, and both sides of the quenching turntable are fixedly connected with cross arms, and the bottom ends of the two cross arms are fixedly provided with a number of quenching clamping devices, a cooling device is fixedly provided on one side of the top of the working base, and a quenching coil barrel is fixedly connected to the other side of the top of the working base by installing an insulating base. In this solution, multiple groups of devices are set to quench at the same time, which improves work efficiency, but the specifications of the steel bars are not processed before quenching the steel bars. After quenching, the performance of the steel bars is improved, which increases the processing difficulty. At the same time, in this solution, each quenching device is still quenched in sequence and cannot work continuously. Summary of the invention
[0004] In order to make up for the deficiencies of the prior art and solve the problems of increased difficulty in post-quenching treatment of steel bars and inability to perform quenching operations continuously, the present invention proposes a composite steel quenching device.
[0005] The present application comprises a quenching box and a box cover; the interior of the quenching box is hollow; the box cover is installed above the quenching box; a conveyor belt 1 is fixedly installed on the right side of the quenching box; a feed hole is provided on the right side wall of the quenching box; the conveyor belt 1 is directly opposite to the feed hole; a guide rod is fixedly installed in the quenching box; a mounting block is slidably installed on the guide rod; a circular hole is provided in the middle position of the mounting block, and the center line of the circular hole coincides with the center line of the feed hole; a spring 1 is installed between the mounting block and the side wall of the quenching box; the spring 1 is a tension spring; a cylinder 1 is fixedly installed on the mounting block; there are three cylinders 1 in total, which are evenly distributed on the mounting block; a cutting block is fixedly installed on the piston rod of the cylinder 1; there are three cutting blocks in total, which are respectively installed on three cylinders 1; the cutting block is arc-shaped, And they cooperate with each other to form a cutter; a drain chamber is installed on the left side of the quenching box; the drain chamber is connected with the inside of the quenching box, and the connection point is located below the liquid level of the quenching liquid; a floating plate is installed in the drain chamber; a plug is fixedly installed on the lower surface of the floating plate; a drain hole is opened at the bottom of the drain chamber; the plug cooperates with the drain hole; a water storage tank is installed under the quenching box; the water released from the drain hole can directly flow into the water storage tank; a conveyor belt 2 is installed under the quenching box; the conveyor belt 2 is located between the water storage tank and the quenching box, and the transmission belt 2 is grid-shaped; an inclined mesh plate is fixedly installed on the lower surface of the quenching box; the mesh plate is located above the conveyor belt 2; the end of the conveyor belt 2 is located at the left end of the mesh plate, and the starting end of the conveyor belt 2 is located at the lower left of the mesh plate;
[0006] During operation, the steel bars heated by the medium frequency induction heating furnace are sent into the quenching box through the conveyor belt 1. After the steel bars enter the quenching box, they pass through the circular hole in the middle of the mounting block. When the length of the steel bars reaches the set value, the cylinder 1 is started to move the cutting block to the center of the mounting block, thereby clamping the steel bars. At the same time, in the process from the cutting block clamping the steel bars to the cutting block cutting the steel bars, the mounting block is subjected to the force of the steel bars and moves with the steel bars until the cutting block cuts the steel bars. Then, the cylinder 1 runs in the opposite direction and retracts the piston rod of the cylinder 1 to separate the cutting blocks from each other. The mounting block returns to the initial position under the action of the spring 1 until the next time the length of the steel bars reaches the set value. At the same time, in the process of the cutting block cutting the steel bars, since the mounting block moves synchronously with the steel bars, the disadvantage of reducing or stopping the steel bar movement speed during traditional steel bar cutting is avoided, thereby ensuring the working speed and avoiding a decrease in work efficiency. At the same time, cutting the steel bars after the steel bars are heated but not quenched is simpler and more convenient than cutting the steel bars after quenching in the traditional process. , avoiding the improvement of the performance of the steel bars after quenching in the traditional process, increasing the difficulty of cutting, increasing the wear of the cutting tool, and reducing the production cost. At the same time, the cut steel bars directly fall into the quenching liquid filled in the quenching box for quenching. At the beginning, there are fewer steel bars entering the quenching box, and the liquid level of the quenching liquid is low. The floating plate in the drain chamber is not supported by the liquid level, so that the plug installed on the floating plate blocks the drain hole to ensure that the quenching liquid in the quenching box does not leak. When the number of steel bars in the quenching box reaches a certain amount, the quenching box The quenching liquid in the quenching box is filled with steel bars, and the liquid level rises, which makes the float plate in the drain tank rise, so that the plug leaves the drain hole, and the quenching liquid flows out from the drain hole, reducing the height of the quenching liquid. When the total amount of quenching liquid decreases and the quenching liquid level drops, the float plate also drops, and the plug blocks the drain hole again, thereby ensuring that the quenching liquid level in the quenching box is at a certain height, avoiding the quenching liquid level rising after a certain amount of steel bars enter the quenching box, causing the quenching liquid to overflow from the feed hole, resulting in quenching waste and pollution.
[0007] Preferably, an air bag 1 is fixedly installed between the cutting block and the cylinder 1; a water spray hole is provided on the cutting block; the air bag 1 is connected with the water spray hole, and a one-way valve is installed at the connection point; a water pipe 1 is installed on the air bag 1; the end of the water pipe 1 is located below the liquid level of the quenching liquid in the quenching box; a one-way valve is installed on the water pipe 1;
[0008] During operation, when the cutting block starts to shear the steel bar, the airbag 1 installed between the cutting block and the cylinder 1 expands, and the airbag 1 absorbs quenching liquid from the quenching box through the installed water pipe 1. Afterwards, when the cutting block completes the shearing work and returns to its original position, the airbag 1 is squeezed, so that the absorbed quenching liquid in the airbag 1 is sprayed out from the water spray hole set on the cutting block. The sprayed quenching liquid can effectively reduce the temperature of the cutting block, avoiding the cutting block from having too high a temperature during the long-term shearing of the heated steel bar, which affects the performance of the cutting block, thereby extending the service life of the cutting block and effectively reducing the use cost.
[0009] Preferably, the box cover is arc-shaped; a collecting plate is fixedly mounted on the lower surface of the box cover; a nozzle is fixedly mounted on the collecting plate; a second channel is arranged in the collecting plate; a first channel is arranged in the box cover, and the first channel is connected to the second channel; a water pump is mounted on the side of the water discharge chamber; a water pipe six is mounted on the water pump; the other end of the water pipe six is connected to the water storage tank; a water pipe five is mounted on the water pump; the water pipe five passes through the water discharge chamber; a water pipe two is mounted on the water discharge chamber; one end of the water pipe two is connected to the water pipe five, and the other end is connected to the first channel in the box cover;
[0010] During operation, a large amount of steam will be generated when the heated steel bars are cut and fall into the quenching liquid for quenching. The direct discharge of these steam will cause certain pollution and damage the environment. At the same time, in the process of generating steam, the quenching liquid is lost, and the lost quenching liquid drifts with the steam, which will threaten the health of the operators. The collecting plate arranged on the lower surface of the box cover can effectively collect the steam generated by quenching, make it re-condense, and finally fall back into the quenching liquid, reducing the loss of quenching liquid and reducing production costs. At the same time, the nozzle arranged on the collecting plate can spray the quenching liquid with a lower temperature pumped out from the water storage tank, reduce the temperature of the collecting plate, improve the collection efficiency of the collecting plate for steam, avoid excessive steam drifting and causing pollution, and at the same time, the sprayed quenching liquid can effectively reduce the temperature in the quenching box, facilitating the quenching work.
[0011] Preferably, a switch chamber is fixedly installed on the right side of the quenching box; a rectangular hole is opened on the side wall of the quenching box; the rectangular hole connects the switch chamber with the inside of the quenching box; a movable plate is installed in the switch chamber; the movable plate and the inner wall of the switch chamber are kept sealed; a moving contact is fixedly installed on the side of the movable plate away from the quenching box; a static contact is fixedly installed on the side wall of the switch chamber facing the moving plate; the moving contact and the static contact correspond to each other, and the moving contact and the static contact are normally closed contacts; a second spring is installed in the switch chamber; the second spring is located between the movable plate and the vertical side wall of the switch chamber; the second spring is a compression spring; the A liquid level gauge is installed on the inner wall of the quenching box; the liquid level gauge is located above the liquid level of the quenching liquid in the quenching box; the liquid level gauge is located below the feed hole; a movable bottom plate is installed at the bottom of the quenching box; the movable bottom plate is close to the bottom of the quenching box, and the two are kept sealed; a cylinder 2 is installed on the vertical side of the quenching box; the side where the cylinder 2 is located is perpendicular to the side where the switch room is located; there are two cylinders 2, which are respectively installed on the opposite sides of the quenching box; the piston rod of the cylinder 2 is connected to the movable bottom plate, and the two are connected by a hinge; the connection between the piston rod of the cylinder 2 and the movable bottom plate is located in the middle of the movable bottom plate;
[0012] During operation, when the number of steel bars in the quenching box is small, the quenching liquid in the quenching box is large, and the pressure on the movable plate in the switch room is large. The movable plate can overcome the action of spring 2, so that the moving contact and the static contact remain in a normally closed state, so that the controller controls cylinder 2 to be in a contracted state, so that the movable bottom plate installed on the piston rod of cylinder 2 is tightly attached to the bottom of the quenching box, ensuring that the quenching liquid in the quenching box does not leak out. When the steel bars in the quenching box increase to a certain level, a large part of the quenching liquid is discharged through the drain chamber, and the pressure of the quenching liquid in the quenching box on the movable plate is reduced. The movable plate moves toward the direction of the quenching box under the action of spring 2, separating the moving contact from the static contact, so that the controller controls cylinder 2 to extend, so that the movable bottom plate installed on the piston rod of cylinder 2 moves downward, separates the movable bottom plate from the quenching box, and separates the steel bars in the quenching box from the quenching liquid. The steel bars that fall onto the mesh plate will roll down along the mesh plate to be collected on the conveyor belt 2 and the quenching liquid that falls onto the mesh plate will pass through the mesh plate and fall into the water storage tank. At the same time, when the cylinder 2 is extended, the conveyor belt 1 stops moving. After that, after a period of waiting delay, the controller controls the cylinder 2 to contract so that the movable bottom plate is in close contact with the quenching box again. At the same time, under the action of the water pump, the quenching liquid in the water storage tank is pumped into the quenching box again. When the quenching liquid level in the quenching box contacts the liquid level gauge, the controller controls the conveyor belt 1 to restart and continue the quenching operation of the steel bars. The movable bottom plate can be used to conveniently and quickly discharge the quenched steel bars in the quenching box and separate the steel bars from the quenching liquid, thereby ensuring the automatic quenching operation and avoiding manual intervention that affects work efficiency.
[0013] Preferably, a spiral tube is installed in the water discharge chamber; there are two spiral tubes, located at both ends of the water discharge chamber; the two ends of the spiral tube are connected to water pipe 2 and water pipe 5 respectively; the water storage tank is divided into a high temperature zone and a low temperature zone; the high temperature zone is connected to the low temperature zone, and a refrigeration device is provided in the low temperature zone; the connection point between water pipe 6 and the water storage tank is located in the low temperature zone; the quenching liquid discharged from the water discharge chamber will fall into the high temperature zone of the water storage tank; the quenching liquid dropped when the movable bottom plate at the bottom of the quenching box is opened will fall into the high temperature zone;
[0014] During operation, the quenching liquid with a lower temperature in the low-temperature zone of the water storage tank is pumped back into the quenching box through a water pump, which can effectively reduce the temperature of the quenching liquid in the quenching box, improve the quenching effect of the quenching liquid on the steel bars, ensure the stable and orderly quenching operation of the steel bars, and avoid the quenching effect caused by the quenching liquid temperature being too high. At the same time, the quenching liquid with a lower temperature passes through the drain chamber through the spiral tube, which can reduce the temperature of the quenching liquid in the drain chamber. At the same time, since the drain chamber is connected to the inside of the quenching box, the temperature of the quenching liquid in the quenching box can be reduced faster and more conveniently, thereby ensuring the quenching effect of the steel bars.
[0015] Preferably, a second airbag is installed on the upper surface of the floating plate in the water discharge chamber; a third water pipe is installed on the upper surface of the second airbag; the end of the third water pipe is connected to the quenching box, and the connection is located above the quenching liquid level; a fourth water pipe is installed on the lower surface of the second airbag; the end of the fourth water pipe is connected to the quenching box, and the connection is located below the quenching liquid level; both the third water pipe and the fourth water pipe are installed with a one-way valve;
[0016] During operation, when the floating plate moves up and down, the airbag installed on the floating plate is intermittently squeezed, so that the airbag draws out the quenching liquid in the quenching box through water pipe three and water pipe four and sprays it above the quenching liquid surface. In this process, the flow of the quenching liquid can be effectively accelerated, the quenching liquid in the quenching box can be prevented from being stagnate, and the concentration of the components in the quenching liquid at various points can be prevented from being unbalanced during the continuous quenching of the steel bars, resulting in a decrease in the quenching effect. At the same time, the flow of the quenching liquid can accelerate the circulation of heat in the quenching liquid, reduce the temperature of the quenching liquid, and improve the quenching effect.
[0017] The beneficial effects of the present invention are as follows:
[0018] 1. The composite steel quenching device described in the present invention can cut the steel bars after they are heated by arranging guide rods, mounting blocks and cutting blocks. The steel bars after cutting fall into the quenching liquid for quenching treatment, thereby avoiding the inconvenience of cutting caused by the improved performance of the steel bars after quenching, reducing production costs, and at the same time, there is no need to stop the movement of the steel bars during the process of cutting the steel bars, which can effectively improve work efficiency and save costs.
[0019] 2. The composite steel quenching device described in the present invention can balance the liquid level of the quenching liquid in the quenching device by itself to prevent the quenching liquid from overflowing from the quenching box during the quenching process. At the same time, the steam generated by quenching can be effectively collected by the set collecting plate to avoid the loss and pollution of the quenching liquid caused by the steam. At the same time, the set drain chamber and switch chamber can automatically discharge the quenched steel bars to the outside of the quenching device for collection, avoiding manual intervention and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The present invention will be further described below in conjunction with the accompanying drawings.
[0021] Fig. 1 is a schematic structural diagram of the present invention;
[0022] Fig. 2 is a schematic structural diagram of the water discharge chamber;
[0023] FIG3 is a schematic diagram of the structure of the switch room;
[0024] FIG4 is a partial enlarged view of point A in FIG1;
[0025] In the figure: quenching box 1, rectangular hole 11, feed hole 12, guide rod 13, mounting block 14, spring 15, cylinder 16, cutting block 17, water spray hole 171, air bag 18, water pipe 1 181, liquid level meter 19, box cover 2, channel 1 21, collecting plate 22, channel 2 23, nozzle 24, drain chamber 3, water pipe 2 31, water pipe 3 32, water pipe 4 321, water pipe 5 33, water pump 34, water pipe 6 35, floating plate 36, air bag 2 361, plug 37, drain hole 38, spiral tube 39, switch chamber 4, moving plate 41, moving contact 42, static contact 43, spring 2 44, cylinder 2 5, movable bottom plate 51, water storage tank 6, mesh plate 7, conveyor belt 1 8, conveyor belt 2 81. DETAILED DESCRIPTION
[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.
[0027] The present application comprises a quenching box 1 and a box cover 2; the quenching box 1 is hollow inside; the box cover 2 is installed above the quenching box 1; a conveyor belt 8 is fixedly installed on the right side of the quenching box 1; a feed hole 12 is provided on the right side wall of the quenching box 1; the conveyor belt 8 is directly opposite to the feed hole 12; a guide rod 13 is fixedly installed in the quenching box 1; a mounting block 14 is slidably installed on the guide rod 13; a circular hole is provided in the middle position of the mounting block 14, and the center line of the circular hole coincides with the center line of the feed hole 12; a spring 15 is installed between the mounting block 14 and the side wall of the quenching box 1; the spring 15 is a tension spring; a cylinder 16 is fixedly installed on the mounting block 14; there are three cylinders 16, which are evenly distributed on the mounting block 14; a cutting block 17 is fixedly installed on the piston rod of the cylinder 16; there are three cutting blocks 17, which are respectively installed on three cylinders 16; the cutting block 17 The quench box 1 is arc-shaped and cooperates with each other to form a cutter; a drain chamber 3 is installed on the left side of the quench box 1; the drain chamber 3 is connected to the inside of the quench box 1, and the connection point is located below the liquid level of the quenching liquid; a floating plate 36 is installed in the drain chamber 3; a plug 37 is fixedly installed on the lower surface of the floating plate 36; a drain hole 38 is opened at the bottom of the drain chamber 3; the plug 37 cooperates with the drain hole 38; a water storage tank 6 is installed below the quench box 1; the drain hole The water released from 38 can flow directly into the water storage tank 6; a conveyor belt 81 is installed below the quenching box 1; the conveyor belt 81 is located between the water storage tank 6 and the quenching box 1, and the conveyor belt 81 is in a grid shape; an inclined mesh plate 7 is fixedly installed on the lower surface of the quenching box 1; the mesh plate 7 is located above the conveyor belt 81; the end of the conveyor belt 81 is located at the left end of the mesh plate 7, and the starting end of the conveyor belt 81 is located at the lower left of the mesh plate 7;
[0028] During operation, the steel bar heated by the medium frequency induction heating furnace is sent into the quenching box 1 through the conveyor belt 8. After the steel bar enters the quenching box 1, it passes through the circular hole in the middle of the mounting block 14. When the length of the steel bar reaches the set value, the cylinder 16 is started to move the cutting block 17 toward the center of the mounting block 14, thereby clamping the steel bar. At the same time, in the process from the cutting block 17 clamping the steel bar to the cutting block 17 cutting the steel bar, the mounting block 14 is subjected to the force of the steel bar and moves with the steel bar until the cutting block 17 cuts the steel bar. The cylinder 16 moves in the opposite direction. During operation, the piston rod of the air cylinder 16 is retracted, so that the cutting blocks 17 are separated from each other, and the mounting block 14 returns to the initial position under the action of the spring 15 until the next steel bar length reaches the set value. At the same time, in the process of the cutting block 17 cutting the steel bar, the mounting block 14 moves synchronously with the steel bar, thereby avoiding the disadvantage of reducing or stopping the steel bar movement speed when cutting the steel bar in the traditional way, ensuring the working speed and avoiding the decline of working efficiency. At the same time, it is simpler and more convenient to cut the steel bar after the steel bar is heated but not quenched than to cut the steel bar after quenching in the traditional process. The invention can be conveniently used to avoid the improvement of the performance of the steel bar after quenching in the traditional process, increase the difficulty of cutting, increase the wear of the cutting tool, and reduce the production cost. At the same time, the cut steel bar directly falls into the quenching liquid filled in the quenching box 1 for quenching. At the beginning, there are fewer steel bars entering the quenching box 1, and the liquid level of the quenching liquid is low. The floating plate 36 in the drain chamber 3 is not supported by the liquid level, so that the plug 37 installed on the floating plate 36 blocks the drain hole 38 to ensure that the quenching liquid in the quenching box 1 does not leak. When the number of steel bars in the quenching box 1 reaches a certain amount, the quenching liquid in the quenching box 1 is The quenching liquid is filled with steel bars, and the liquid level rises, so that the float plate 36 in the drain tank rises, so that the plug 37 leaves the drain hole 38, and the quenching liquid flows out from the drain hole 38, reducing the height of the quenching liquid. After the total amount of quenching liquid decreases and the liquid level of the quenching liquid drops, the float plate 36 also drops, and the plug 37 blocks the drain hole 38 again, thereby ensuring that the liquid level of the quenching liquid in the quenching box 1 is at a certain height, avoiding the quenching liquid from overflowing from the feed hole 12 due to the quenching liquid level rising after a certain amount of steel bars enter the quenching box 1, resulting in quenching waste and pollution.
[0029] As an embodiment of the present invention, an air bag 18 is fixedly installed between the cutting block 17 and the cylinder 16; a water spray hole 171 is provided on the cutting block 17; the air bag 18 is connected with the water spray hole 171, and a one-way valve is installed at the connection point; a water pipe 181 is installed on the air bag 18; the end of the water pipe 181 is located below the liquid level of the quenching liquid in the quenching box 1; a one-way valve is installed on the water pipe 181;
[0030] During operation, when the cutting block 17 starts to shear the steel bars, the airbag 18 installed between the cutting block 17 and the cylinder 16 expands, and the airbag 18 absorbs quenching liquid from the quenching box 1 through the installed water pipe 181. Afterwards, when the cutting block 17 completes the shearing work and returns to its original position, the airbag 18 is squeezed, so that the absorbed quenching liquid in the airbag 18 is sprayed out from the water spray hole 171 set on the cutting block 17. The sprayed quenching liquid can effectively reduce the temperature of the cutting block 17, avoiding the cutting block 17 from having too high a temperature during the long-term shearing of the heated steel bars, which affects the performance of the cutting block 17, thereby extending the service life of the cutting block 17 and effectively reducing the use cost.
[0031] As an embodiment of the present invention, the box cover 2 is arc-shaped; a collecting plate 22 is fixedly installed on the lower surface of the box cover 2; a nozzle 24 is fixedly installed on the collecting plate 22; a channel 23 is provided in the collecting plate 22; a channel 1 21 is provided in the box cover 2, and the channel 1 21 is connected with the channel 2 23; a water pump 34 is installed on the side of the water discharge chamber 3; a water pipe 6 35 is installed on the water pump 34; the other end of the water pipe 6 35 is connected to the water storage tank 6; a water pipe 5 33 is installed on the water pump 34; the water pipe 5 33 passes through the water discharge chamber 3; a water pipe 2 31 is installed on the water discharge chamber 3; one end of the water pipe 2 31 is connected with the water pipe 5 33, and the other end is connected with the channel 1 21 in the box cover 2;
[0032] During operation, a large amount of steam will be generated in the process of quenching the heated steel bars after being cut and falling into the quenching liquid. The direct discharge of these steam will cause certain pollution and damage the environment. At the same time, in the process of generating steam, the quenching liquid will be lost, and the lost quenching liquid will drift away with the steam, which will pose a threat to the health of the operator. The collecting plate 22 arranged on the lower surface of the box cover 2 can effectively collect the steam generated by quenching, make it re-condense, and finally fall back into the quenching liquid, thereby reducing the loss of quenching liquid and reducing production costs. At the same time, the nozzle 24 arranged on the collecting plate 22 can spray the quenching liquid with a lower temperature pumped out from the water storage tank 6, thereby reducing the temperature of the collecting plate 22, improving the collection efficiency of the collecting plate 22 for steam, and avoiding excessive steam drifting away and causing pollution. At the same time, the sprayed quenching liquid can effectively reduce the temperature in the quenching box 1, thereby facilitating the quenching work.
[0033] As an embodiment of the present invention, a switch chamber 4 is fixedly installed on the right side of the quenching box 1; a rectangular hole 11 is opened on the side wall of the quenching box 1; the rectangular hole 11 connects the switch chamber 4 with the inside of the quenching box 1; a movable plate 41 is installed in the switch chamber 4; the movable plate 41 and the inner wall of the switch chamber 4 are kept sealed; a moving contact 42 is fixedly installed on the side of the movable plate 41 away from the quenching box 1; a static contact 43 is fixedly installed on the side wall of the switch chamber 4 facing the moving plate 41; the moving contact 42 and the static contact 43 correspond to each other, and the moving contact 42 and the static contact 43 are normally closed contacts; a spring 2 44 is installed in the switch chamber 4; the spring 2 44 is located between the moving plate 41 and the vertical side wall of the switch chamber 4; the spring Two 44 is a compression spring; a liquid level gauge 19 is installed on the inner wall of the quenching box 1; the liquid level gauge 19 is located above the liquid level of the quenching liquid in the quenching box 1; the liquid level gauge 19 is located below the feed hole 12; a movable bottom plate 51 is installed at the bottom of the quenching box 1; the movable bottom plate 51 is close to the bottom of the quenching box 1, and the two are kept sealed; a cylinder two 5 is installed on the vertical side of the quenching box 1; the side where the cylinder two 5 is located is perpendicular to the side where the switch chamber 4 is located; there are two cylinders two 5, which are respectively installed on the opposite sides of the quenching box 1; the piston rod of the cylinder two 5 is connected to the movable bottom plate 51, and the two are connected by a hinge; the connection between the piston rod of the cylinder two 5 and the movable bottom plate 51 is located in the middle of the movable bottom plate 51;
[0034] During operation, when the number of steel bars in the quenching box 1 is small, the quenching liquid in the quenching box 1 is large, and the pressure on the movable plate 41 in the switch chamber 4 is large. The movable plate 41 can overcome the effect of the spring 2 44, so that the moving contact 42 and the static contact 43 remain in a normally closed state, so that the controller controls the cylinder 2 5 to be in a contracted state, so that the movable bottom plate 51 installed on the piston rod of the cylinder 2 5 is close to the bottom of the quenching box 1, to ensure that the quenching liquid in the quenching box 1 does not leak. When the steel bars in the quenching box 1 increase to a certain level, a large part of the quenching liquid is discharged through the drain chamber 3, and the pressure of the quenching liquid in the quenching box 1 on the movable plate 41 is reduced. The movable plate 41 moves toward the direction of the quenching box 1 under the action of the spring 2 44, so that the moving contact 42 is separated from the static contact 43, so that the controller controls the cylinder 2 5 to extend, so that the movable bottom plate 51 installed on the piston rod of the cylinder 2 5 moves downward, so that the movable bottom plate 51 is separated from the quenching box 1, so that the quenching box 1 The steel bars and the quenching liquid are discharged out of the quenching box 1 and fall onto the mesh plate 7. The steel bars falling onto the mesh plate 7 will roll along the mesh plate 7 to the conveyor belt 81 to be collected. At the same time, the quenching liquid falling onto the mesh plate 7 passes through the mesh plate 7 and falls into the water storage tank 6. At the same time, when the cylinder 2 5 is extended, the conveyor belt 8 stops moving. After that, after a period of waiting delay, the controller controls the cylinder 2 5 to contract so that the movable bottom plate 51 is in close contact with the quenching box 1 again. At the same time, under the action of the water pump 34, the quenching liquid in the water storage tank 6 is pumped into the quenching box 1 again. When the quenching liquid level in the quenching box 1 contacts the liquid level meter 19, the controller controls the conveyor belt 8 to restart and continue the quenching operation of the steel bars. The movable bottom plate 51 can be set to conveniently and quickly discharge the quenched steel bars in the quenching box 1 and separate the steel bars from the quenching liquid, thereby ensuring the automatic quenching operation and avoiding manual intervention to affect work efficiency.
[0035] As an embodiment of the present invention, a spiral tube 39 is installed in the water discharge chamber 3; there are two spiral tubes 39, which are located at both ends of the water discharge chamber 3; the two ends of the spiral tube 39 are respectively connected to the water pipe 2 31 and the water pipe 5 33; the water storage tank 6 is divided into a high temperature zone and a low temperature zone; the high temperature zone is connected to the low temperature zone, and a refrigeration device is provided in the low temperature zone; the connection point between the water pipe 6 35 and the water storage tank 6 is located in the low temperature zone; the quenching liquid discharged from the water discharge chamber 3 will fall into the high temperature zone of the water storage tank 6; the quenching liquid dropped when the movable bottom plate 51 at the bottom of the quenching box 1 is opened will fall into the high temperature zone;
[0036] During operation, the quenching liquid with a lower temperature in the low-temperature zone of the water storage tank 6 is pumped back into the quenching box 1 through the water pump 34, which can effectively reduce the temperature of the quenching liquid in the quenching box 1, improve the quenching effect of the quenching liquid on the steel bars, ensure the stable and orderly quenching operation of the steel bars, and avoid the quenching effect being reduced due to the quenching liquid temperature being too high. At the same time, the quenching liquid with a lower temperature passes through the drain chamber 3 through the spiral tube 39, which can reduce the temperature of the quenching liquid in the drain chamber 3. At the same time, since the drain chamber 3 is connected to the inside of the quenching box 1, the temperature of the quenching liquid in the quenching box 1 can be reduced faster and more conveniently, thereby ensuring the quenching effect of the steel bars.
[0037] As an embodiment of the present invention, the upper surface of the floating plate 36 in the water discharge chamber 3 is installed with an air bag 2 361; the upper surface of the air bag 2 361 is installed with a water pipe 3 32; the end of the water pipe 3 32 is connected to the quenching box 1, and the connection is located above the quenching liquid surface; the lower surface of the air bag 2 361 is installed with a water pipe 4 321; the end of the water pipe 4 321 is connected to the quenching box 1, and the connection is located below the quenching liquid surface; both the water pipe 3 32 and the water pipe 4 321 are installed with a one-way valve;
[0038] During operation, when the floating plate 36 moves up and down, the airbag installed on the floating plate 36 is intermittently squeezed, so that the airbag draws out the quenching liquid in the quenching box 1 through the water pipe three 32 and the water pipe four 321 and sprays it above the quenching liquid surface. In this process, the flow of the quenching liquid can be effectively accelerated, the quenching liquid in the quenching box 1 can be prevented from being stagnant, and the concentration of the components in the quenching liquid at various points can be prevented from being unbalanced during the continuous quenching of the steel bars, resulting in a decrease in the quenching effect. At the same time, the flow of the quenching liquid can accelerate the circulation of heat in the quenching liquid, reduce the temperature of the quenching liquid, and improve the quenching effect.
[0039] The specific workflow is as follows:
[0040] During operation, the steel bar heated by the medium frequency induction heating furnace is sent into the quenching box 1 through the conveyor belt 8. After the steel bar enters the quenching box 1, it passes through the circular hole in the middle of the mounting block 14. When the length of the steel bar reaches the set value, the cylinder 16 is started to move the cutting block 17 toward the center of the mounting block 14, thereby clamping the steel bar. At the same time, in the process from the cutting block 17 clamping the steel bar to the cutting block 17 cutting the steel bar, the mounting block 14 is subjected to the force of the steel bar and moves with the steel bar until the cutting block 17 cuts the steel bar. Then the cylinder 16 runs in the reverse direction to make the cylinder 16 The piston rod retracts, so that the cutting blocks 17 are separated from each other, and the mounting block 14 returns to the initial position under the action of the spring 15 until the next steel bar length reaches the set value. At the same time, the cut steel bars directly fall into the quenching liquid filled in the quenching box 1 for quenching. At the beginning, there are fewer steel bars entering the quenching box 1, and the liquid level of the quenching liquid is low. The floating plate 36 in the drain chamber 3 is not supported by the liquid level, so that the plug 37 installed on the floating plate 36 blocks the drain hole 38. When the steel bars in the quenching box 1 reach a certain number, the quenching liquid in the quenching box 1 is filled with steel bars, and the liquid level rises , so that the floating plate 36 in the drain box rises, so that the plug 37 leaves the drain hole 38, and the quenching liquid flows out from the drain hole 38, reducing the height of the quenching liquid. After the total amount of quenching liquid is reduced and the liquid level of the quenching liquid drops, the floating plate 36 also drops, and the plug 37 blocks the drain hole 38 again, thereby ensuring that the liquid level of the quenching liquid in the quenching box 1 is at a certain height; when the cutting block 17 starts to shear the steel bar, the air bag 18 installed between the cutting block 17 and the cylinder 16 expands, and the air bag 18 absorbs the quenching liquid from the quenching box 1 through the installed water pipe 181, and then, the cutting block 1 7 After the shearing work is completed and the steel bar returns to its original position, the airbag 18 is squeezed, so that the quenching liquid absorbed in the airbag 18 is sprayed out from the water spray hole 171 provided on the cutting block 17; a large amount of steam is generated in the process that the heated steel bar is cut and falls into the quenching liquid for quenching. The collecting plate 22 provided on the lower surface of the box cover 2 can effectively collect the steam generated by quenching, so that it re-condenses and finally falls back into the quenching liquid. At the same time, the nozzle 24 provided on the collecting plate 22 can spray the quenching liquid with a lower temperature pumped from the water storage tank 6 to reduce the temperature of the collecting plate 22;When the number of steel bars in the quenching box 1 is small, the quenching liquid in the quenching box 1 is large, and the pressure on the moving plate 41 in the switch chamber 4 is large. The moving plate 41 can overcome the effect of the spring 2 44, so that the moving contact 42 and the static contact 43 remain in a normally closed state, so that the controller controls the cylinder 2 5 to be in a contracted state, so that the movable bottom plate 51 installed on the piston rod of the cylinder 2 5 is close to the bottom of the quenching box 1. When the number of steel bars in the quenching box 1 increases to a certain extent, a large part of the quenching liquid is discharged through the drain chamber 3. After the separation, the pressure of the quenching liquid in the quenching box 1 on the movable plate 41 is reduced, and the movable plate 41 moves toward the quenching box 1 under the action of the spring 2 44, so that the moving contact 42 is separated from the static contact 43, so that the controller controls the cylinder 2 5 to extend, so that the movable bottom plate 51 installed on the piston rod of the cylinder 2 5 moves downward, so that the movable bottom plate 51 is separated from the quenching box 1, so that the steel bars and the quenching liquid in the quenching box 1 are discharged to the outside of the quenching box 1 and fall onto the mesh plate 7. The steel bars falling on the mesh plate 7 will be moved along the mesh plate 7. The mesh plate 7 rolls down to the conveyor belt 2 81 to be collected. At the same time, the quenching liquid that falls on the mesh plate 7 passes through the mesh plate 7 and falls into the water storage tank 6. At the same time, when the cylinder 2 5 is extended, the conveyor belt 1 8 stops moving. After that, after a period of waiting delay, the controller controls the cylinder 2 5 to shrink, so that the movable bottom plate 51 is in close contact with the quenching box 1 again. At the same time, under the action of the water pump 34, the quenching liquid in the water storage tank 6 is pumped into the quenching box 1 again. When the quenching liquid surface in the quenching box 1 contacts After reaching the liquid level meter 19, the controller controls the conveyor belt 1 8 to restart operation and continue the quenching operation of the steel bars; the quenching liquid with a lower temperature in the low temperature zone of the water storage tank 6 is pumped into the quenching box 1 through the water pump 34, and the quenching liquid with a lower temperature passes through the drain chamber 3 through the spiral tube 39; when the floating plate 36 moves up and down, the airbag installed on the floating plate 36 is intermittently squeezed, so that the airbag passes through the water pipe 3 32 and the water pipe 4 321, and the quenching liquid in the quenching box 1 is extracted and sprayed above the quenching liquid surface.
[0041] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.
Claims
1. A composite steel quenching device, characterized in that: The invention comprises a quenching box (1) and a box cover (2); the quenching box (1) is hollow inside; the box cover (2) is installed above the quenching box (1); a conveyor belt (8) is fixedly installed on the right side of the quenching box (1); a feed hole (12) is provided on the right side wall of the quenching box (1); the conveyor belt (8) is directly opposite to the feed hole (12); a guide rod (13) is fixedly installed in the quenching box (1); a mounting block (14) is slidably installed on the guide rod (13); a circular hole is provided in the middle of the mounting block (14), and the circular hole The center line coincides with the center line of the feed hole (12); a spring (15) is installed between the mounting block (14) and the side wall of the quenching box (1); the spring (15) is a tension spring; a cylinder (16) is fixedly installed on the mounting block (14); there are three cylinders (16) uniformly distributed on the mounting block (14); a cutting block (17) is fixedly installed on the piston rod of the cylinder (16); there are three cutting blocks (17) respectively installed on three cylinders (16); the cutting block (17) The quench box (1) is arc-shaped and cooperates with each other to form a cutter; a drain chamber (3) is installed on the left side of the quench box (1); the drain chamber (3) is connected to the inside of the quench box (1), and the connection point is located below the liquid surface of the quenching liquid; a floating plate (36) is installed in the drain chamber (3); a plug (37) is fixedly installed on the lower surface of the floating plate (36); a drain hole (38) is opened at the bottom of the drain chamber (3); the plug (37) cooperates with the drain hole (38); a water storage pool (6) is installed below the quench box (1); the drain hole ( 38) can directly flow into the water storage tank (6); a conveyor belt 2 (81) is installed below the quenching box (1); the conveyor belt 2 (81) is located between the water storage tank (6) and the quenching box (1), and the conveyor belt 2 is in a grid shape; an inclined mesh plate (7) is fixedly installed on the lower surface of the quenching box (1); the mesh plate (7) is located above the conveyor belt 2 (81); the end of the conveyor belt 2 (81) is located at the left end of the mesh plate (7), and the starting end of the conveyor belt 2 (81) is located at the lower left of the mesh plate (7); An air bag (18) is fixedly installed between the cutting block (17) and the cylinder (16); a water spray hole (171) is provided on the cutting block (17); the air bag (18) is connected to the water spray hole (171), and a one-way valve is installed at the connection point; a water pipe (181) is installed on the air bag (18); the end of the water pipe (181) is located below the liquid level of the quenching liquid in the quenching box (1); and a one-way valve is installed on the water pipe (181); A switch chamber (4) is fixedly installed on the right side of the quenching box (1); a rectangular hole (11) is opened on the side wall of the quenching box (1); the rectangular hole (11) connects the switch chamber (4) with the inside of the quenching box (1); a movable plate (41) is installed in the switch chamber (4); the movable plate (41) and the inner wall of the switch chamber (4) are kept sealed; a moving contact (42) is fixedly installed on the side of the movable plate (41) away from the quenching box (1); a static contact (43) is fixedly installed on the side wall of the switch chamber (4) facing the movable plate (41); the moving contact (42) and the static contact (43) correspond to each other, and the moving contact (42) and the static contact (43) are normally closed contacts; a spring 2 (44) is installed in the switch chamber (4); the spring 2 (44) is located between the movable plate (41) and the vertical side wall of the switch chamber (4); the spring 2 (44) 44) is a compression spring; a level gauge (19) is installed on the inner wall of the quenching box (1); the level gauge (19) is located above the liquid level of the quenching liquid in the quenching box (1); the level gauge (19) is located below the feed hole (12); a movable bottom plate (51) is installed at the bottom of the quenching box (1); the movable bottom plate (51) is in close contact with the bottom of the quenching box (1), and the two are kept sealed; a cylinder 2 (5) is installed on the vertical side of the quenching box (1); the side where the cylinder 2 (5) is located is perpendicular to the side where the switch chamber (4) is located; there are two cylinders 2 (5), which are respectively installed on opposite sides of the quenching box (1); the piston rod of the cylinder 2 (5) is connected to the movable bottom plate (51), and the two are connected by a hinge; the connection between the piston rod of the cylinder 2 (5) and the movable bottom plate (51) is located in the middle of the movable bottom plate (51).
2. A composite steel quenching device according to claim 1, characterized in that: The box cover (2) is arc-shaped; a collecting plate (22) is fixedly mounted on the lower surface of the box cover (2); a nozzle (24) is fixedly mounted on the collecting plate (22); a second channel (23) is arranged in the collecting plate (22); a first channel (21) is arranged in the box cover (2), and the first channel (21) is connected to the second channel (23); a water pump (34) is mounted on the side of the water discharge chamber (3); a sixth water pipe (35) is mounted on the water pump (34); the other end of the sixth water pipe (35) is connected to the water storage tank (6); a fifth water pipe (33) is mounted on the water pump (34); the fifth water pipe (33) passes through the water discharge chamber (3); a second water pipe (31) is mounted on the water discharge chamber (3); one end of the second water pipe (31) is connected to the fifth water pipe (33), and the other end is connected to the first channel (21) in the box cover (2).
3. A composite steel quenching device according to claim 2, characterized in that: A spiral tube (39) is installed in the water discharge chamber (3); there are two spiral tubes (39) located at both ends of the water discharge chamber (3); the two ends of the spiral tube (39) are respectively connected to the water pipe 2 (31) and the water pipe 5 (33); the water storage tank (6) is divided into a high temperature zone and a low temperature zone; the high temperature zone is connected to the low temperature zone, and a refrigeration device is provided in the low temperature zone; the connection point between the water pipe 6 (35) and the water storage tank (6) is located in the low temperature zone; the quenching liquid discharged from the water discharge chamber (3) will fall into the high temperature zone of the water storage tank (6); the quenching liquid dropped when the movable bottom plate (51) at the bottom of the quenching box (1) is opened will fall into the high temperature zone.
4. The composite steel quenching device according to claim 2, characterized in that: The upper surface of the floating plate (36) in the water discharge chamber (3) is provided with airbag 2 (361); the upper surface of the airbag 2 (361) is provided with water pipe 3 (32); the end of the water pipe 3 (32) is connected to the quenching box (1), and the connection is located above the quenching liquid surface; the lower surface of the airbag 2 (361) is provided with water pipe 4 (321); the end of the water pipe 4 (321) is connected to the quenching box (1), and the connection is located below the quenching liquid surface; both the water pipe 3 (32) and the water pipe 4 (321) are provided with one-way valves.
Citation Information
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