CN105803166A - Steel wire water bathing and air cooling quenching unit - Google Patents

Abstract

The invention discloses a steel wire water bath and air-cooling quenching unit, including a water-bath quenching unit and an air-cooling quenching unit. The air-cooling quenching unit is arranged downstream of the water-bath quenching unit and connected to each other. The movable baffle is used to control the length of the water bath sub-trough, thereby controlling the quenching time of the steel wire water bath, and the air-cooled quenching unit can independently control the temperature, intelligently control the temperature, and reduce the influence of the ambient temperature on the air cooling. The water bath and air-cooling quenching unit can not only freely adjust the quenching time and quenching length, but also produce a variety of products with different specifications and strengths at the same time, and the water bath and air-cooling quenching unit can independently control the temperature, so that the steel wire is always within the required quenching temperature range Quenching improves the quenching effect of the steel wire and ensures the stability of the mechanical properties of the steel wire.

Description

A steel wire water bath and air-cooled quenching unit

technical field

The invention relates to a steel wire water bath and air cooling quenching unit, which is used for isothermal water bath quenching and air cooling quenching for steel wires.

Background technique

Steel wire isothermal water bath and air cooling quenching is a heat treatment process of immersing steel wire in an aqueous solution containing high molecular polymer for continuous rapid cooling, rapid air cooling, air cooling and heat preservation. In order to achieve this purpose, before the steel wire is cooled and quenched in an isothermal water bath and non-isothermal air, the steel wire must first be heated to a state of complete austenite crystal structure and obtain austenite crystal structure with a grain size of 7-8. The purpose of steel wire isothermal water bath and non-isothermal air cooling and quenching is to obtain a sorbite crystal structure with uniform and fine grains, and then obtain higher strength, toughness and good plasticity. After the steel wire is austenitized and heated at high temperature, it enters the isothermal water bath quenching unit for rapid cooling, and after leaving the isothermal water bath quenching unit, it enters the air-cooled temperature control box to continue cooling. The temperature of the quenching liquid and the temperature of the air-cooled temperature control box are set by the production process. First of all, when the steel wire is quenched in an isothermal water bath, a high molecular polymer is added to the quenching liquid to increase the viscosity, vaporization temperature, boiling point and tension of the quenching liquid, and reduce the thermal conductivity of water. Control the temperature of the quenching liquid between the vaporization and boiling point, so that a uniform steam film is formed on the surface of the steel wire immersed in the quenching liquid. The steam film separates the steel wire from the quenching liquid, and the heat exchange between the quenching liquid and the steel wire can only be Conducted through a vapor film.

The isothermal water bath quenching unit for steel wire generally includes an upper quenching tank and a lower liquid storage tank. The quenching liquid is stored in the liquid storage tank and is circulated to the upper quenching tank. This isothermal water bath quenching unit has the following disadvantages: 1. The current upper Quenching tanks are only suitable for quenching steel wires with larger diameters, and steel wires with smaller diameters are more sensitive to temperature. The current upper quenching tanks are difficult to control the quenching time, quenching length, and cooling speed. When the quenching liquid flows in the upper quenching tank, the liquid level fluctuates relatively large, and the contact between the steel wire and the quenching liquid is not uniform enough, resulting in uneven cooling of the steel wires, resulting in uneven quality of the steel wires, and even due to the uneven cooling of the steel wires with smaller diameters. 2. In addition, the current upper quenching tank cannot produce steel wires of different quenching specifications at the same time; 3. When the steel wire is quenched in the upper quenching tank, it is generally in a relatively open state, and some baffles are used for heat preservation and The temperature control effect is not obvious. After the steel wire passes through the heating furnace and enters the upper quenching tank, some impurities may be brought into the upper quenching tank, such as oxides, oxide scales or borax in the heating furnace. The flow of the quenching liquid is stored in the liquid storage tank, which will affect the concentration of the quenching liquid and the water bath effect of the steel wire; 4. The current water bath quenching unit and the air-cooling quenching unit are used together, and the belting of the steel wire is very troublesome, and there is no need to The special belting device, the pulling of the steel wire before the start-up and the pulling of the quenched steel wire after the wire is broken are all done manually, that is, by pulling the steel wire and operating the worker to hold the support rod to raise the steel wire, so that the steel wire is pulled on the support rod. After the completion, put down the support bar to let the steel wire fall to the normal operation position. However, this method of belting requires more operators. At the same time, the support bar needs to be inserted into the quenching area of the unit for operation, which is prone to burns. Waiting for danger.

In addition, the current air-cooling quenching unit is not a closed structure, and the air cooling and heat preservation cannot be actively controlled, which is greatly affected by environmental and climate factors; while the air cooling and heat preservation cannot actively control the temperature, cannot actively control the strength and toughness of the steel wire, and cannot obtain stable mechanical properties . Although certain heat preservation measures are also adopted for the air-cooled quenching unit, the combination of the exhaust hood and the hanging plate is used as heat preservation, the space is too large, the exhaust chimney and the surrounding environment are greatly affected, and the external environmental factors are greatly affected. Such as seasonal changes, temperature difference between morning and evening, wind and rain will all affect the effect of air cooling to a certain extent. In addition, during the production operation, the hanging board must be opened or the steel wire is exposed in the air during the operation of the pressing board.

Contents of the invention

The technical problem to be solved by the present invention is to provide a steel wire water bath and air-cooled quenching unit. The water bath and air-cooled quenching unit can not only freely adjust the quenching time and quenching length, but also produce a variety of products with different specifications and strengths at the same time. The air-cooled quenching unit can independently control the temperature, so that the steel wire is always quenched within the required quenching temperature range, which improves the quenching effect of the steel wire and ensures the stability of the mechanical properties of the steel wire.

In order to solve the above technical problems, the technical solution of the present invention is: a steel wire water bath and air-cooled quenching unit, including a water-bath quenching unit and an air-cooled quenching unit, the air-cooled quenching unit is arranged downstream of the water-bath quenching unit and connected to each other,

The water quenching unit includes an upper quenching tank and a liquid storage tank below the upper quenching tank. The upper quenching tank includes a quenching tank at the top and a liquid injection tank at the bottom. The upper part of the quenching tank is provided with A water bath heat preservation cover, a steel wire running channel is formed between the water bath heat preservation cover and the quenching tank to facilitate the running of the steel wire, and the quenching tank is sequentially provided with a liquid inlet section, a branch line section, a water bath section and a water bath section along the running direction of the steel wire The liquid return section, the liquid inlet section is provided with a liquid inlet channel, and the line dividing section is horizontally rotated with a line dividing comb, and the line dividing comb is connected with the line separating comb swing mechanism, and the water bath section is provided with several pairs of The water bath sub-groove for steel wire to be cooled by water bath, the liquid inlet channel connects each water bath sub-groove with the liquid injection tank body, the liquid return section is provided with a liquid return channel, and the liquid return channel connects the lower section of each water bath sub-groove The liquid storage tanks are connected, and each water bath sub-channel is slidingly provided with a moving baffle along the running direction of the steel wire, and each moving baffle is connected with the corresponding baffle adjustment mechanism. A liquid supply system is arranged between, and a thermometer and a liquid level gauge are arranged in the liquid storage tank, and the liquid storage tank is connected with an automatic water adding system, and a temperature adjustment system for adjusting the temperature of the quenching liquid is arranged in the liquid storage tank;

The air-cooled quenching unit includes a first quenching box, a second quenching box and a third quenching box with the same structure and connected in sequence, the first quenching box is connected with the water bath quenching unit, the first quenching box, the second quenching box Both the tempering box and the third quenching box include a temperature regulating box and an air-cooled insulation cover arranged on the upper part of the temperature regulating box. The room is connected with the steel wire running channel, and the heating system and the cooling system are installed in the tempering box, and the junction of the first quenching box and the second quenching box, and the junction of the second quenching box and the third quenching box are all set There is a lifting door driven by a lifting power device, and at least one of the quenching chambers of the first quenching box, the second quenching box, and the third quenching box is provided with a splitting comb, and the water-bath insulation cover and the air-cooled insulation cover The side is provided with the side door which can be opened or closed.

As a preferred solution, a belt line device is provided on the inside of the top of the water-bath heat preservation case and the air-cooled heat preservation case.

As a preferred solution, the belt line device includes a number of support rods fixed on the inner top of the water bath insulation cover and the air-cooled heat preservation cover, each support rod is arranged in parallel according to the running direction of the steel wire, and the support rods rotate The suit is equipped with movable wire-hanging wheels that can move axially along the support rod, each movable wire-hanging wheel cooperates with each other, and the two ends of the support rod are provided with limiting blocks.

As a preferred solution, the upstream end of the quenching tank is also provided with a buffer return tank, which connects the lower liquid storage tank with the liquid inlet channel, and the buffer return tank and the liquid inlet channel are connected to each other. Set the idler roller with steel wire entering.

As a preferred solution, the liquid inlet channel is installed with a flow equalizer to make the quenching liquid flow evenly, and several flow equalizers parallel to each other are arranged on the flow equalizer, and the space between each flow equalizer constitutes equalizing channel.

As a preferred solution, the baffle adjustment mechanism includes a rack fixedly connected to the movable baffle, a first gear kneaded with the rack, the first gear is rotatably installed on the quenching tank, and the first gear The gear shaft extends out of the quenching tank and is connected with the first operating handle. The splitting comb swing mechanism includes a sector gear fixed on the rotating shaft of the splitting comb. The quenching tank is provided with a second kneading gear The second gear is connected with the second operating handle.

As a preferred solution, the upstream section of the liquid storage tank is provided with a slag-collecting partition, and a slag-collecting tank is formed between the slag-collecting partition and the upstream end plate of the liquid storage tank. Corresponding to the buffer reflux tank, a slag cleaning door is provided on the outside of the liquid storage tank corresponding to the slag collection tank, and a buffer tank with an upper end opening is provided on the inner surface of the upstream end plate of the liquid storage tank. above the slag tank.

As a preferred solution, the liquid supply system is arranged on two parallel circulation pumps downstream of the liquid storage tank, and the downstream end of the liquid storage tank is provided with two liquid outlet pipes, which are connected to the inlet of the circulation pump. One-to-one connection, the outlet of the circulation pump communicates with the liquid injection pipe in the liquid injection tank through the liquid supply main pipe, and the upper circumference of the liquid injection pipe is evenly distributed with liquid outlet holes, and the bottom and top of the liquid injection tank A lower steady-flow baffle and an upper steady-flow baffle are arranged respectively, and the lower steady-flow baffle and the upper steady-flow baffle are arranged in a staggered manner.

As a preferred solution, both the water-bath heat preservation case and the air-cooled heat preservation case are provided with a temperature-controlling exhaust device, and the temperature-controlled exhaust device includes exhaust air arranged on the water-bath heat preservation case and the air-cooling heat preservation case. A trachea, the exhaust pipe is equipped with a temperature control exhaust servo valve, and the water bath heat preservation cover and the air cooling heat preservation cover are equipped with temperature detection sensors for detecting the steel wire running channel and the quenching chamber.

As a preferred solution, the top of the water-bath heat preservation case and the air-cooled heat preservation case is provided with a conical pouring plate to prevent the formation of water vapor, and the left side and the right side of the water-bath heat preservation case and the air-cooling heat preservation case are The surfaces are all set to facilitate the water droplets to divert to the inclined diversion surfaces on both sides.

After adopting the above technical scheme, the effect of the present invention is: 1. The steel wire passes through the liquid inlet section, the branch line section, the water bath section and the liquid return section successively and leaves the upper quenching tank to enter the air-cooled quenching unit, and the quenching liquid enters the air-cooled quenching unit from the liquid storage tank The liquid supply system is supplied into the liquid injection tank, and then the quenching liquid flows into the water bath sub-channel from the liquid inlet channel to cool the running steel wire, and then the quenching liquid overflows from the water bath sub-channel and returns to the liquid storage through the liquid return channel In the groove, since multiple water bath sub-grooves are set, and each water-bath sub-groove is equipped with a slidable movable baffle, then each water-bath sub-groove can adjust the quenching time and quenching length of the steel wire according to the actual quenching process, thereby Products of different specifications and strengths can be produced. 2. The liquid storage tank of the water bath quenching unit is equipped with a thermometer and a liquid level gauge. The liquid storage tank is connected to the automatic water adding system. Adding water and automatic temperature control keeps the quenching temperature of the steel wire stable at an appropriate range and improves the water bath quenching effect of the steel wire; 3. The air-cooled quenching unit uses the air-cooled heat preservation cover to isolate the quenching chamber from the external environment, and forms the first part of the air-cooled quenching unit A lifting door is set at the junction of the first quenching box, the second quenching box and the third quenching box, so that the first quenching box, the second quenching box and the third quenching box are relatively independent, and each quenching box has a corresponding heating At the same time, the temperature control exhaust device is used to realize the precise and independent temperature adjustment of each quenching box, so that the steel wire is air-cooled and quenched at a very stable quenching temperature, and the stability of the mechanical properties of the steel wire is improved.

And because the inside of the top of the water-bath heat preservation casing and the air-cooling heat preservation casing is provided with a wire device. The belt line device includes a number of support rods fixed on the inner top of the water bath insulation cover and the air-cooled heat preservation cover. Each support rod is arranged in parallel according to the running direction of the steel wires. The mobile hanging wheels move toward each other, and each moving hanging wheel cooperates with each other. The two ends of the support rod are provided with limit blocks. The use of this belt device can improve the efficiency of belt belt, reduce the labor intensity of belt belt, and avoid burns of operators.

And because the upstream end of the quenching tank is also provided with a buffer return tank, the buffer return tank connects the lower liquid storage tank with the liquid inlet channel, and a steel wire enters the support between the buffer return tank and the liquid inlet channel. Roller, the setting of the buffer reflux tank makes the quenching liquid flow upwards and then split, part of it enters the water bath sub-trough, and part of it flows into the buffer reflux tank. The contact between the roller and the steel wire can scrape off the scale and other impurities on the surface of the steel wire to a certain extent, so that the quenching liquid can not only cool the upstream end of the quenching tank, but also wash away the scale and other impurities on the surface of the steel wire, making the impurities Concentrated removal is facilitated by buffered return tank flow into the reservoir.

Furthermore, since the liquid inlet channel is installed with a flow equalizer to make the quenching liquid flow evenly, the flow equalizer is provided with several parallel flow equalizers, and the space between each flow equalizer constitutes a flow equalizer. Therefore, the quenching liquid enters the water bath sub-groove smoothly and evenly from the liquid inlet channel through the equalizing groove, which reduces the fluctuation of the liquid level and ensures the uniformity of steel wire quenching.

And because the baffle adjustment mechanism includes a rack fixedly connected with the movable baffle, and a first gear kneaded with the rack, the first gear is rotatably mounted on the quenching tank, and the gear shaft of the first gear extends out of the quenching tank. The outside of the tank is connected to the first operating handle. The splitting comb swing mechanism includes a sector gear fixed on the rotating shaft of the splitting comb. The quenching tank is provided with a second gear kneaded with the sector gear. The second gear is connected with a second operating handle. The adjustment of the movable baffle and the splitting comb is very flexible and precise, and the entire adjustment can be done outside the unit, and there is no need to extend into the unit for adjustment, reducing work intensity.

Since the upstream section of the liquid storage tank is provided with a slag-collecting partition, a slag-collecting tank is formed between the slag-collecting partition and the upstream end plate of the liquid storage tank, and the position of the slag-collecting tank corresponds to the buffer reflux tank, A slag removal door is provided on the outside of the liquid storage tank corresponding to the slag collection tank, and a buffer tank with an upper end opening is provided on the inner surface of the upstream end plate of the liquid storage tank, and the buffer tank is located above the slag collection tank. The buffer tank is located above the slag collecting tank. After the steel wire enters the upper quenching tank, the impurities will gradually fall. At this time, the slag collecting tank corresponds to the upstream return channel of the upper quenching tank. Collected, the impurities will not be recycled to the upper quenching tank again, so that the concentration of the quenching liquid is more stable and the quenching effect is better. When the quenching liquid flows downward from the upstream return channel, it will be buffered in the buffer tank, so that the quenching liquid can cool the upstream end plate to avoid oxidation and deformation of the upstream end plate due to high temperature.

And because the liquid supply system is arranged on two parallel circulation pumps downstream of the liquid storage tank, the downstream end of the liquid storage tank is provided with two liquid outlet pipes, and the liquid outlet pipes are connected to the inlets of the circulation pumps one by one. The outlet of the circulation pump communicates with the liquid injection pipe in the liquid injection tank through the liquid supply main pipe. The flow baffle and the upper steady flow baffle, the lower steady flow baffle and the upper steady flow baffle are staggered. The upper steady flow baffle can play a certain effect of steady flow.

Furthermore, since the water-bath heat preservation case and the air-cooled heat preservation case are provided with a temperature-controlled exhaust device, the temperature-controlled exhaust device includes exhaust pipes arranged on the water-bath heat-preservation case and the air-cooling heat preservation case, and the A temperature-controlled exhaust servo valve is installed on the exhaust pipe, and temperature detection sensors for detecting the steel wire running channel and the quenching chamber are installed on the water-bath insulation cover and the air-cooled insulation cover. The temperature control exhaust device is used to control the discharge of heat in the water bath insulation cover and the air cooling insulation cover, so that the temperature in the steel wire running channel and the quenching chamber is kept within a relatively stable range.

And because the top of the water-bath heat-preservation shell and the air-cooled heat-preservation shell are provided with a conical pouring plate to prevent the formation of water vapor, the left and right sides of the water-bath heat-preservation shell and the air-cooled heat-preservation shell are all set to facilitate The water droplets are guided to the inclined guide surfaces on both sides. When the steel wire comes out of the water bath quenching unit, water vapor will be brought out. Using the conical pouring plate and the inclined diversion surface, the formed water droplets can be guided along the inclined surface to the middle and both sides. The middle and both sides are just running without steel wire. Avoid water droplets directly dripping onto the steel wire to cause changes in the quenching temperature of the steel wire, and further improve the stability of the steel wire quenching.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is a partial structural sectional view of a water-bath quenching unit and an air-cooling quenching unit according to an embodiment of the present invention;

Fig. 2 is a schematic cross-sectional view of the front structure of the water bath quenching unit according to the embodiment of the present invention;

Fig. 3 is the top view of the water bath quenching unit of the embodiment of the present invention;

Fig. 4 is a partial schematic diagram of Fig. 2;

Fig. 5 is a schematic view of the front structure of an embodiment of the present invention;

Fig. 6 is the cross-sectional view at A-A place of Fig. 5;

Fig. 7 is a sectional view of the structure of the water-bath insulation cover;

Fig. 8 is a schematic structural view of the first quenching box and the second quenching box of the embodiment of the present invention;

Fig. 9 is a schematic structural view of a second quenching box and a third quenching box according to an embodiment of the present invention;

Fig. 10 is a top plan view of the first quenching box of the embodiment of the present invention;

Fig. 11 is the cross-sectional view at B-B place of Fig. 10;

In the drawings: 1. Quenching tank; 2. Liquid injection tank; 3. Liquid storage tank; 4. Liquid inlet channel; 5. Equalizing tank; 6. Buffer return tank; 7. Buffer tank; Door; 9. Slag collecting partition; 10. Liquid injection pipe; 11. Lower steady flow baffle; 12. Upper steady flow baffle; 13. Mobile hanging wheel; 14. Water bath insulation cover; Gas device; 16. Cooling coil; 17. Heating coil; 18. Circulation pump; 19. Liquid outlet pipe; 20. Splitting comb; 21. Moving baffle; 22. Rack; 23. First gear; .Cooling water supply pipe; 25. Cooling water return pipe; 26. Steam supply pipe; 27. Return water pipe; 28. Liquid level gauge; 281. Float; 282. Liquid level cylinder; ;285. Upper proximity switch; 286. Pole; 287. Metal sleeve; 29. Automatic water adding system; 30. Side door; 31. Support rod; 32. The first quenching box; 33. The second quenching box; 34. The third Quenching box; 35. Tempering box; 36. Air-cooled insulation cover; 37. Quenching chamber; 38. Temperature detection sensor; 39. Lifting door; 40. Hoist; 41. Cooling branch; 42. Electric heating tube; 43. Line roller; 44. Inflow main pipe; 45. Outflow main pipe; 46. Cooling medium supply system; 47 Cooling medium recovery system; 48. Counterweight; Bit block; 52. Water-cooled servo valve; 53. Water-cooled filter; 54. Water-cooled manual valve; 55. Rapid water-cooled parallel pipeline.

detailed description

The present invention will be described in further detail below through specific examples.

As shown in Fig. 1, a steel wire water bath and air-cooled quenching unit includes a water-bath quenching unit and an air-cooled quenching unit, and the air-cooled quenching unit is arranged downstream of the water-bath quenching unit and connected to each other. The water-bath quenching unit and the air-cooling quenching unit are further described in detail below.

As shown in Figures 2 to 7, a steel wire water bath quenching unit includes an upper quenching tank and a liquid storage tank 3 below the upper quenching tank. The liquid tank body 2, the upper part of the quenching tank body 1 is provided with a water bath insulation cover 14, and the upper part of the quenching tank body 1 is provided with a steel wire running channel for facilitating the operation of the steel wire, and the water bath insulation cover 14 is equipped with A belt device, said belt device includes a support rod 31 fixedly installed on the top of the water bath insulation cover 14, and the support rod 31 is rotatably equipped with a mobile hanging wheel 13, and the mobile hanging wheel 13 moves on the support rod 31 and rotate, the two ends of the support rod 31 are fixed with a limit block 51, which is used to limit the movement of the hanging wheel 13 and can only slide within a specified range, and the sides of the water bath insulation cover 14 are provided with side doors that can be opened or closed 30. The water-bath heat preservation enclosures 14 are all provided with temperature-control exhaust devices 15 .

The temperature control exhaust device 15 includes an exhaust pipe arranged on the water bath insulation cover 14, a temperature control exhaust servo valve is installed on the exhaust pipe, and a detection quenching valve is installed on the water bath insulation cover 14. The temperature detection sensor 38 of the chamber 37, the temperature detection sensor 38 detects the temperature in the water bath insulation cover 14, when the temperature is too high, the opening angle of the temperature control exhaust servo valve can be increased to accelerate the discharge of exhaust gas and heat. Similarly, when the temperature is too low, the opening angle of the temperature-controlled exhaust servo valve is reduced or even closed to reduce heat discharge. So as to achieve the purpose of temperature regulation.

The side door 30 utilizes a counterweight 48 to keep the side door 30 open or closed. The tops of the water-bath insulation casing 14 and the air-cooling insulation casing 36 are provided with a conical pouring plate 49 to prevent the formation of water vapor, and the left and right sides of the water-bath insulation casing 14 and the air-cooling insulation casing 36 are all arranged as The inclined guide surface 50 on both sides is convenient for diverting water droplets. When the steel wire comes out of the water bath quenching unit, water vapor will be brought out. Using the conical pouring plate 49 and the inclined flow guide surface 50, the formed water droplets can be guided along the slope to the middle and both sides. The middle and both sides just have no steel wire. Operation, to avoid water droplets directly dripping onto the steel wire and cause changes in the quenching temperature of the steel wire, and further improve the stability of the steel wire quenching.

The quenching tank body 1 is sequentially provided with a liquid inlet section, a branch line section, a water bath section and a liquid return section along the running direction of the steel wire. The liquid inlet section is provided with a liquid inlet channel 4, and the liquid inlet channel 4 is equipped with A flow equalizing tank 5 for making the quenching liquid flow evenly. The flow equalizing tank 5 is provided with several parallel flow equalizing plates, and the space between each flow equalizing plate constitutes a flow equalizing channel. The quenching liquid enters the quenching tank body 1 after passing through the equalizing tank 5, and the liquid level is more stable, so that the liquid level of each steel wire moves little when running, and the quenching effect is consistent.

As shown in Figure 4, the upstream end of the quenching tank body 1 is also provided with a buffer return tank 6, which communicates the lower liquid storage tank 3 with the liquid inlet passage 4, and the buffer return tank 6 Between the liquid inlet channel 4 and the steel wire inlet roller, the buffer return tank 6 can wash away the impurities brought by the steel wire, so that the impurities can flow back into the liquid storage tank 3 through the buffer return tank 6 .

The upstream section of the liquid storage tank 3 is provided with a slag-collecting partition 9, which forms a slag-collecting tank between the slag-collecting partition 9 and the upstream end plate of the liquid storage tank 3. The position of the slag-collecting tank and the buffer backflow Corresponding to the tank 6, a slag removal door 8 is provided on the outside of the liquid storage tank 3 corresponding to the slag collection tank, and a buffer tank 7 with an upper end opening is provided on the inner surface of the upstream end plate of the liquid storage tank 3. The tank 7 is located above the slag collecting tank, and when the quenching liquid returns from the buffer return tank 6, it will stay and buffer in the buffer tank 7, thereby cooling the upstream end plate of the liquid storage tank 3 and avoiding deformation of the upstream end plate.

A line-splitting comb 20 is provided for horizontal rotation on the line-splitting section, and the line-splitting comb 20 is connected with the swing mechanism of the line-splitting comb 20, and the swing mechanism of the line-splitting comb 20 includes a sector gear fixed on the rotating shaft of the line-splitting comb 20 , the quenching tank body 1 is provided with a second gear kneaded with the sector gear, the second gear is connected with a second operating handle, and the wire-splitting comb 20 can be operated on the side of the unit, so that the wire-splitting comb 20 can be Swing within the swing range.

The water-bath section is provided with several water-bath sub-grooves for water-bath cooling of steel wires, the liquid inlet channel 4 communicates each water-bath sub-groove with the liquid injection tank body 2, and the liquid-return section is provided with a liquid-return channel. The liquid channel connects the lower section of each water bath sub-tank with the lower liquid storage tank 3, and a movable baffle 21 is slid along the running direction of the steel wire in each water bath sub-tank, and each mobile baffle 21 is adjusted with the corresponding baffle. Mechanism connection, a liquid supply system is arranged between the liquid storage tank 3 and the liquid injection tank body 2, a temperature detection sensor 38 and a liquid level gauge 28 are arranged in the liquid storage tank 3, and the liquid storage tank 3 is connected with the automatic The water adding system 29 is connected, and the temperature adjustment system for adjusting the temperature of the quenching liquid is arranged in the liquid storage tank 3 .

As shown in Figures 3 and 4, the baffle adjustment mechanism includes a rack 22 fixedly connected to the movable baffle 21, a first gear 23 kneaded with the rack 22, and the first gear 23 is rotatably installed in the quenching tank 1, the gear shaft of the first gear 23 extends out of the quenching tank 1 and is connected with the first operating handle. As shown in Figure 3, the number of water bath sub-troughs is six, and correspondingly, the number of movable baffles 21 is six, and the gear shafts of three gears protrude from both sides of the quenching tank body 1. By disassembling and installing the first An operating handle is used to adjust the corresponding mobile baffle 21 . In this way, the length of each water bath sub-channel is different, and the quenching time of the steel wire is different during operation, so that steel wires of different specifications can be produced.

As shown in Figures 2 and 3, the temperature adjustment system includes a heating coil 17 and a cooling coil 16 arranged at the bottom of the liquid storage tank 3, and the head and tail ends of the heating coil are respectively connected to steam supply pipes 26 and a water return pipe 27, the steam supply pipe 26 is provided with a steam filter and a steam heating servo valve, the head end and tail end of the cooling coil 16 are respectively connected with a cooling water supply pipe 24 and a cooling return pipe 2725, The cooling water supply pipe 24 is provided with a cooling water servo valve. Of course, other coolants can also be used for cooling, and electric heating can also be used for heating.

The liquid supply system is arranged on two parallel circulation pumps 18 downstream of the liquid storage tank 3, and the downstream end of the liquid storage tank 3 is provided with two liquid outlet pipes 19, which are connected to the inlet of the circulation pump 18. One corresponding connection, the outlet of the circulation pump 18 communicates with the liquid injection pipe 10 of the upper quenching tank through the liquid supply main pipe, and the upper circumference of the liquid injection pipe 10 is evenly distributed with liquid outlet holes. The end of the liquid outlet pipe 19 is arranged upwards to prevent impurities from entering the circulation pump 18 and causing damage to it.

The quenching liquid flows out uniformly from the liquid outlet through the liquid supply main pipe and the liquid injection pipe 10 and enters the liquid injection tank 2, and the quenching liquid in the liquid injection tank 2 diffuses into the quenching tank 1 from the liquid inlet channel 4 , and the bottom and top of the liquid injection tank 2 are respectively provided with a lower steady flow baffle 11 and an upper steady flow baffle 12, and the lower steady flow baffle 11 and the upper steady flow baffle 12 are staggered, and the lower steady flow baffle 12 is used to The steady flow baffle 11 and the upper steady flow baffle 12 can achieve a steady flow effect.

The automatic water-adding device described in the automatic water-adding system 29 includes a quantitative water supply pipe, and the quantitative water-supply pipe connects the water-filling port of the liquid storage tank 3 with the water-filling main pipe, and the upstream stop valve 3, a water supply solenoid valve, a flow rate meter and downstream cut-off valve, the liquid level gauge 28 for detecting the liquid level height in the liquid storage tank 3 is arranged on the liquid storage tank 3, and the liquid level gauge 28 and the water supply solenoid valve are connected with the intelligent control device.

As shown in Figure 6, the liquid level gauge 28 adopts an external liquid level gauge 28, and the liquid level height of the liquid storage tank 3 is divided into three heights, which are respectively the lowest liquid level, the replenishment liquid level and the highest liquid level shown in Figure 6. level, the connection position between the liquid level gauge 28 and the liquid storage tank 3 should be lower than the minimum liquid level. The device controls the water supply solenoid valve to open, and the pure water is filled into the liquid storage tank 3 from the main water supply pipe through the quantitative water supply pipe, and the liquid level in the liquid storage tank 3 rises. When the liquid level rises to the highest level, the intelligent control device controls the water supply The solenoid valve is closed to stop water replenishment. And the minimum liquid level is as the alarm liquid level, if intelligent control device or replenishment solenoid valve break down, liquid level can continue to decline, and when liquid level reached minimum liquid level, after liquid level gauge 28 detects, system sends acousto-optic alarm.

As shown in FIG. 6, the liquid level gauge 28 includes a liquid level cylinder 282 communicated with the liquid storage tank 3, and the communication position between the liquid level cylinder 282 and the liquid storage tank 3 is lower than the minimum liquid level to be detected. A buoy 281 is arranged inside the liquid level cylinder 282, and a vertical rod 286 is arranged on the top of the buoyant cylinder 281. The vertical rod 286 is provided with a signal piece to be detected, and at least three signal pieces to be detected are arranged outside the liquid level cylinder 282. The detection sensor of the vertical position, the detection switch is connected with the intelligent control device. The signal part to be detected is a metal sleeve 287, and the metal sleeve 287 is fixed on the pole 286, and the detection sensor is a proximity switch. Respectively bottom proximity switch 283, middle part proximity switch 284 top proximity switch 285, metal sleeve 287 is correspondingly matched with bottom proximity switch 283, middle part proximity switch 284, top proximity switch 285.

As shown in Figures 8 to 11, the air-cooled quenching unit is located downstream of the water-bath quenching unit and is connected with it. After the steel wire is quenched in the water bath, it directly enters the air-cooled quenching unit for rapid air-cooling quenching, air-cooling quenching and heat preservation. The air-cooled quenching unit includes the first quenching box 32, the second quenching box 33 and the third quenching box 34 with the same structure and connected in sequence, and the first quenching box 32, the second quenching box 33 and the third quenching box 34 all include The tempering box 35 and the air-cooled heat preservation cover 36 arranged on the top of the temperature control box 35, between the air-cooled heat preservation shell 36 and the temperature control box 35, a quenching chamber 37 is formed to facilitate the running and quenching of steel wires, and the steel wires pass through the first The quenching chambers 37 of the first quenching box 32, the second quenching box 33 and the third quenching box 34 are rapidly cooled, cooled and kept warm. The temperature adjustment box 35 is provided with a heating system and a cooling system, the junction of the first quenching box 32 and the second quenching box 33, and the junction of the second quenching box 33 and the third quenching box 34 are all provided with The lifting door 39 driven by the lifting power device, the lifting power device includes a hoist 40, connected by a traction rope between the hoisting machine 40 and the lifting door 39, the first quenching box 32, the second quenching box 33 and the third quenching box 34 At least one of the quenching chambers 37 is provided with a splitting comb 20, and the air-cooled heat preservation case 36 is provided with a belt device, and the side of the air-cooled heat preservation case 36 is provided with a side door 30 that can be opened or closed. The air-cooled heat preservation cover 36 is also provided with a temperature-controlled exhaust device 15 .

The strip line device in the air-cooled heat preservation case 36 is identical in structure with the line line device in the water bath heat preservation case 14 and is used in conjunction. The structure of the same temperature control exhaust device 15 is consistent with that of the water bath quenching unit, and will not repeat them again. Only in the air-cooled quenching unit, the temperature control exhaust device 15 is linked with the heating system and the cooling system, so as to intelligently adjust the quenching temperature.

The heating system includes several electric heating tubes 42 arranged in the temperature regulating box 35. The bottom of the temperature regulating box 35 is provided with several parallel grooves extending transversely, and the electric heating tubes 42 are placed one by one. In the groove and connected with the heating control device, the heating control device and the cooling control device can be single-chip microcomputer and PLC. The cooling system includes a cooling pipeline arranged in the temperature control box 35, which is filled with a cooling medium, the inlet of the cooling pipeline is connected to the cooling medium supply system 46, and the outlet of the cooling pipeline is connected to the cooling medium. A medium recovery system 47, the cooling medium supply system 46 is connected with the cooling control device. Of course, the heating system can not only use electric heating, but also steam heating. Similarly, the cooling system can be cooled by cooling water or air-cooled.

As shown in Figures 10 and 11, the cooling pipeline includes an inflow main pipe 44, an outflow main pipe 45, and several cooling branch pipes 41 connected between the inflow main pipe 44 and the outflow main pipe 45, and the inflow main pipe 44 and the outflow main pipe 45 They are all parallel to the electric heating pipe 42 , and the inflow main pipe 44 is located upstream of the outflow main pipe 45 , the inflow main pipe 44 is connected to the cooling medium supply system 46 , and the outflow main pipe 45 is connected to the cooling medium recovery system 47 . However, the present embodiment adopts cooling water cooling, therefore, the cooling medium supply system 46 includes a cooling supply water pipe, and the cooling supply water pipe is provided with a water-cooling manual valve 54, a water-cooling servo valve 52 and a water-cooling filter 53, and the water-cooling filter 53 is in a water-cooling mode. Between the manual valve 54 and the water-cooled servo valve 52 . In addition, in order to ensure the normal operation of the cooling medium supply system 46, a fast water-cooling parallel pipeline 55 is connected in parallel to the cooling supply water pipe. The fast water-cooling parallel pipeline 55 is provided with a manual valve to realize rapid cooling when the water-cooling servo valve 52 fails. add water.

Similarly, the top of the air-cooled heat preservation case 36 is provided with a conical pouring plate 49 to prevent the formation of water vapor, and the left side and the right side of the air-cooled heat preservation case 36 are all arranged to facilitate water droplets to flow to both sides. Inclined guide surface 50 . A thread support roller 43 is rotatably arranged in the second quenching box, and the thread support roller 43 is close to the third quenching box 34 .

The working principle of the invention is: the steel wire passes through the water bath quenching unit and the air cooling quenching unit successively to realize isothermal water bath and non-isothermal air cooling, so that the steel wire changes from the austenite crystal phase structure state to the sorbite crystal phase structure state. In the water-bath quenching unit, the length of each water-bath sub-channel can be changed as required by using the movable baffle 21, so that the quenching time of the steel wire is different, so that steel wire with different mechanical properties can be produced. In water bath quenching, because the flow of quenching liquid is very stable, the fluctuation of liquid level is small, and the performance of steel wire is more balanced. The smaller the diameter of steel wire, the higher the sensitivity to temperature. Therefore, in water bath quenching, the liquid level of quenching liquid is stable. Simultaneously, the isolation of the water bath insulation cover 14 is used to control the temperature of the temperature control exhaust device 15, so that it is more suitable for the quenching of steel wires with small diameters.

Then the steel wire is air-cooled in the first quenching box 32, the second quenching box 33 and the third quenching box 34 in the air-cooling quenching unit, each quenching box is independent of each other, the temperature control is accurate, the air cooling effect reaches the best, and the impact of the ambient temperature on the air cooling is reduced. influences.

The above-described embodiments are only descriptions of preferred implementations of the present invention, and are not intended to limit the scope of the present invention. On the basis of not departing from the design spirit of the present invention, any deformation and transformation made to the technical solution of the present invention shall fall within the scope of the present invention. Into the scope of protection determined by the claims of the present invention.

Claims (10)

1. A steel wire water bath and air-cooled quenching unit, comprising a water-bath quenching unit and an air-cooled quenching unit, the air-cooled quenching unit is arranged downstream of the water-bath quenching unit and is connected to each other, it is characterized in that: The water quenching unit includes an upper quenching tank and a liquid storage tank (3) below the upper quenching tank, the upper quenching tank includes a quenching tank (1) at the top and a liquid injection tank (2) at the bottom, The upper part of the quenching tank body (1) is provided with a water bath heat preservation cover (14), and a steel wire running channel is formed between the water bath heat preservation cover shell (14) and the quenching tank body (1) to facilitate the running of the steel wire. The tank body (1) is sequentially provided with a liquid inlet section, a sub-line section, a water bath section and a liquid return section along the running direction of the steel wire. The liquid inlet section is provided with a liquid inlet channel (4), and the horizontal rotation is set There is a splitting comb (20), and the splitting comb (20) is connected with the swinging mechanism of the splitting comb (20). The water bath section is provided with several water bath sub-troughs for cooling the steel wires in a water bath. The liquid inlet channel (4) Connect each water bath sub-groove with the liquid injection tank body (2), and the liquid return section is provided with a liquid return channel, and the liquid return channel communicates the lower section of each water bath sub-groove with the lower liquid storage tank (3), A movable baffle (21) is slidably arranged in each water bath sub-trough along the running direction of the steel wire, and each movable baffle (21) is connected with a corresponding baffle adjustment mechanism, and the liquid storage tank (3) and injection A liquid supply system is arranged between the liquid tanks (2), a thermometer and a liquid level gauge (28) are arranged in the liquid storage tank (3), and the liquid storage tank (3) is connected with an automatic water adding system (29) , the temperature adjustment system for adjusting the temperature of the quenching liquid is arranged in the liquid storage tank (3); The air-cooled quenching unit includes a first quenching box (32), a second quenching box (33) and a third quenching box (34) with the same structure and connected in sequence, and the first quenching box (32) and the water bath quenching unit Connected, the first quenching box (32), the second quenching box (33) and the third quenching box (34) all include a temperature regulating box (35) and an air-cooled insulation cover arranged on the top of the temperature regulating box (35) (36), a quenching chamber (37) convenient for steel wire operation and quenching is formed between the air-cooled heat preservation cover (36) and the temperature adjustment box (35), and the quenching chamber (37) is communicated with the steel wire running channel, so The temperature adjustment box (35) is provided with a heating system and a cooling system, the junction of the first quenching box (32) and the second quenching box (33), the second quenching box (33) and the third quenching box ( 34) Lifting doors (39) driven by lifting power devices are provided at the joints, and at least one of the first quenching box (32), the second quenching box (33) and the third quenching box (34) of the quenching chamber A splitting comb (20) is provided in the chamber (37), and side doors (30) that can be opened or closed are provided on the sides of the water-bath insulation casing (14) and the air-cooling insulation casing (36). 2. A steel wire water bath and air-cooled quenching unit according to claim 1, characterized in that: the inside of the top of the water-bath insulation cover (14) and the air-cooling insulation cover (36) is provided with a wire device. 3. A steel wire water bath and air-cooled quenching unit as claimed in claim 2, characterized in that: the belt line device includes several inner tops fixed on the water bath heat preservation case (14) and the air-cooling heat preservation case (36). A support rod (31), each support rod (31) is arranged in parallel according to the running direction of the steel wire, and a movable hanging wheel (13) that can move axially along the support rod (31) is provided with a rotating sleeve on the support rod (31) , each mobile hanging wheel (13) cooperates with each other, and the two ends of support bar (31) are provided with limit block (51). 4. A steel wire water bath and air-cooled quenching unit as claimed in claim 3, characterized in that: the upstream end of the quenching tank (1) is also provided with a buffer return tank (6), the buffer return tank (6 ) connect the lower liquid storage tank (3) with the liquid inlet channel (4), and a steel wire enters the idler roller between the buffer return tank (6) and the liquid inlet channel (4). 5. A steel wire water bath and air-cooled quenching unit as claimed in claim 4, characterized in that: said inlet channel (4) is equipped with a flow equalizer (5) for uniform flow of quenching liquid, and the flow equalizer (5) There are several flow equalizing plates parallel to each other, and the space between each flow equalizing plate constitutes a flow equalizing channel. 6. A steel wire water bath and air-cooled quenching unit as claimed in claim 5, characterized in that: the baffle adjustment mechanism includes a rack (22) fixedly connected to the movable baffle (21), a rack (22) ) kneading first gear (23), the first gear (23) is rotatably mounted on the quenching tank (1), and the gear shaft of the first gear (23) extends out of the quenching tank (1) and is in contact with the first An operating handle is connected, and the oscillating mechanism of the thread separating comb includes a sector gear fixed on the rotating shaft of the thread separating comb (20). The quenching tank (1) is provided with a second gear kneaded with the sector gear. The second gear is connected with a second operating handle. 7. A steel wire water bath and air-cooled quenching unit as claimed in claim 6, characterized in that: the upstream section of the liquid storage tank (3) is provided with a slag-collecting partition (9), and the slag-collecting partition (9 ) and the upstream end plate of the liquid storage tank (3) form a slag collection tank, the position of the slag collection tank corresponds to the buffer return flow tank (6), and the outside of the liquid storage tank (3) corresponds to the slag collection tank A slag removal door (8) is provided at the position, and a buffer tank (7) with an upper end opening is provided on the inner surface of the upstream end plate of the liquid storage tank (3), and the buffer tank (7) is located above the slag collection tank. 8. A kind of steel wire water bath and air-cooled quenching unit as claimed in claim 7, characterized in that: said liquid supply system is arranged on two parallel circulating pumps (18) downstream of the liquid storage tank (3), and the liquid storage The downstream end of the tank (3) is provided with two liquid outlet pipes (19), and the liquid outlet pipes (19) are connected to the inlets of the circulation pump (18) in one-to-one correspondence, and the outlet of the circulation pump (18) is supplied through the liquid The main pipe communicates with the liquid injection pipe (10) in the liquid injection tank (2), and the upper circumference of the liquid injection pipe (10) is evenly distributed with liquid outlet holes, and the bottom and top of the liquid injection tank (2) are respectively A lower steady-flow baffle (11) and an upper steady-flow baffle (12) are provided, and the lower steady-flow baffle (11) and the upper steady-flow baffle (12) are arranged in a staggered manner. 9. A steel wire water bath and air-cooled quenching unit according to any one of claims 1 to 8, characterized in that: the water-bath insulation cover (14) and the air-cooling insulation cover (36) are equipped with temperature control Exhaust device (15), described temperature control exhaust device (15) comprises the exhaust pipe that is arranged on the water-bath insulation casing (14) and the air-cooling insulation casing (36), described exhaust pipe is installed with control Warm exhaust servo valve, the temperature detection sensor (38) that detects steel wire running channel and quenching chamber (37) is all installed on described water bath heat preservation cover (14) and air-cooled heat preservation cover (36). 10. A steel wire water bath and air-cooled quenching unit as claimed in claim 9, characterized in that: the tops of the water-bath insulation casing (14) and the air-cooling insulation casing (36) are provided with conical inverted The water plate (49), the left side and the right side of the water bath heat preservation case (14) and the air-cooled heat preservation case (36) are all set to facilitate the inclined flow guide surface (50) of water drop guide to both sides.