CN112588864B - Safe and energy-saving preparation process of tire bead steel wire - Google Patents
Safe and energy-saving preparation process of tire bead steel wire Download PDFInfo
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- CN112588864B CN112588864B CN202011403241.2A CN202011403241A CN112588864B CN 112588864 B CN112588864 B CN 112588864B CN 202011403241 A CN202011403241 A CN 202011403241A CN 112588864 B CN112588864 B CN 112588864B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
- B21C37/042—Manufacture of coated wire or bars
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
- B21C37/045—Manufacture of wire or bars with particular section or properties
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/06—Surface hardening
- C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation
- C21D1/10—Surface hardening by direct application of electrical or wave energy; by particle radiation by electric induction
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
- C23C2/36—Elongated material
- C23C2/38—Wires; Tubes
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G3/00—Apparatus for cleaning or pickling metallic material
- C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
- C23G3/021—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously by dipping
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Chemical Kinetics & Catalysis (AREA)
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- Crystallography & Structural Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
The invention relates to a safe and energy-saving preparation process of a tire bead steel wire, which comprises the following process steps: pretreatment, rough drawing, intermediate heat treatment, fine drawing, tempering and bronze plating. According to the safe and energy-saving preparation process of the tire bead steel wire, the pretreatment device, the rough drawing device, the intermediate heat treatment device, the fine drawing device, the tempering device and the bronze plating device on the tire bead steel wire production line are optimized and improved, potential safety hazards caused by exposure of mechanical operation equipment and direct injection of high-temperature steam are avoided, the occupied area of the equipment is saved, the energy storage and heat preservation capacity of a heating furnace body is improved, the waste heat utilization efficiency is higher, the service life of the heating furnace is prolonged, the production energy consumption is greatly saved, the production efficiency is improved, the equipment maintenance is simpler, the cost is lower, and the equipment failure rate is reduced.
Description
Technical Field
The invention relates to a safe and energy-saving preparation process of a tire bead steel wire, belonging to the technical field of tire bead steel wire production.
Background
The bead wire is a steel wire which is made of high-carbon steel and is plated with red copper or bronze on the surface, has high strength, good toughness, excellent fatigue performance and good linearity, has higher adhesive force with rubber, is mainly used for the edge of a tire as a framework material for reinforcement, and is widely applied to car tires, light truck tires, heavy truck tires, engineering machinery vehicle tires, airplane tires and the like.
The existing production process of the high-tin bronze tire bead steel wire has the following problems:
1. before the steel wire is drawn, the surface of the steel wire is coated with boron sand, and the steel wire is dried and then enters a wire drawing machine for drawing, so that the wire drawing lubrication effect is achieved. In the drying process after the borax is coated, an observation window of the drying equipment needs to be opened frequently to observe the drying effect, and the potential safety hazard of scalding operators exists due to the fact that high-temperature steam in the drying equipment is quickly discharged at the moment of opening the observation window;
2. because the winding drum and the motor of the existing wire drawing machine are separately arranged and are driven by a belt, the wire drawing machine occupies a large area, and the length of the belt is long, even if strict protection measures and protection devices are made, certain potential safety hazards still exist in the operation process;
3. the heating furnace for intermediate heat treatment has high energy consumption, the lubricating layer on the surface layer of the steel wire irregularly drops in the hearth after being heated, so that frequent shutdown and ash removal are needed, the production efficiency is influenced, and the service life of the furnace body of the heating furnace is also influenced while a large amount of energy is consumed due to frequent temperature rise and temperature reduction of the heating furnace; the heat preservation performance of the furnace wall needs to be improved; the waste heat utilization efficiency of the tail gas of the heating furnace is not high;
4. because the adjacent induction coils are close to each other, the induction heating tempering furnace has a certain mutual inductance phenomenon to influence the heating efficiency and increase the power consumption; when the inner sleeve of the coil is blocked and damaged, the whole inner tube needs to be replaced, the replacement cost is high, the replacement operation process is complex, the shutdown time is long, and the production efficiency is influenced;
5. the push rod of the steel wire lifting device has overlarge resistance to lifting and descending in the guide pipe, and the failure rate is high; the whole push rod needs to be dismantled after the ceramic nozzle is blocked or damaged, and the replacement process is time-consuming and labor-consuming.
Disclosure of Invention
The invention aims to overcome the defects and provide a safe and energy-saving preparation process of the bead wire, which has the advantages of high safety, high production efficiency, simple maintenance and low energy consumption.
The purpose of the invention is realized as follows:
a safe and energy-saving preparation process of a tire bead wire is realized based on a special efficient and energy-saving production line for the tire bead wire, and the special efficient and energy-saving production line for the tire bead wire comprises a pretreatment device, a rough drawing device, an intermediate heat treatment device, a fine drawing device, a tempering device and a bronze plating device which are sequentially arranged, and is characterized in that: the pretreatment device and the bronze plating device both comprise steel wire lifting devices; the pretreatment device comprises a safety observation window mechanism; the rough drawing device and the fine drawing device both comprise integrated reel mechanisms; the intermediate heat treatment device comprises a steel wire heating furnace; the tempering device comprises a steel wire induction tempering furnace;
the steel wire lifting device comprises a box body, a guide plate and a lifting rod, wherein the box body is internally provided with a cylinder, the guide plate is arranged at the bottom of the box body, and the top of the lifting rod is connected with a piston rod of the cylinder; the guide plate is provided with a guide through hole, the lifting rod is embedded in the guide through hole in a sliding manner, and the cross sections of the lifting rod and the guide through hole are the same in shape; the bottom end of the lifting rod is provided with a yarn guide nozzle and a yarn guide pressing block, the yarn guide pressing block is arranged on the lifting rod through a yarn guide bolt, and the yarn guide nozzle is embedded between the yarn guide pressing block and the lifting rod;
the safety observation window mechanism comprises a cover plate arranged on the outer side of the oven wall of the drying oven and a square tube arranged on the inner side of the oven wall; the top surface of the square tube is provided with an outer opening communicated with the air suction device through the furnace wall, the side surface of the square tube is provided with an air suction opening, and the outer opening and the air suction opening are both communicated with the inner space of the square tube; the left end of the cover plate is hinged to the furnace wall, a baffle plate is arranged at the position, close to the left end, of the bottom surface of the cover plate, and the lower end of the baffle plate covers the air suction opening;
the integrated winding drum mechanism comprises a winding drum rack, a winding drum motor arranged below the winding drum rack and a winding drum arranged above the winding drum rack; the rotor of the drum motor penetrates through the drum frame and is in rotary contact with the drum frame through a bearing; the winding drum is sleeved at the top of the winding drum motor rotor, a protective cover is arranged in the winding drum, and a concave part arranged on the edge of the bottom of the periphery of the winding drum is matched with and in sliding contact with a convex part at a corresponding position of the winding drum rack; the winding drum rack is provided with a cooling nozzle, a cooling medium inlet and a cooling medium outlet, and the cooling nozzle is communicated with the cooling medium inlet through a pipeline; the cooling nozzle sprays the cooling medium to the inner wall of the winding drum;
the steel wire heating furnace comprises a frame and a furnace body arranged in the frame; the furnace body comprises a furnace bottom, a furnace side wall and a furnace top which are arranged from bottom to top in sequence; the furnace bottom is sequentially provided with a liner, a high-alumina brick, a clay brick and a backing plate from inside to outside; the furnace side wall is sequentially provided with corundum bricks, high-alumina bricks, fiber blankets, nano heat insulation plates, fiber blankets and furnace side backing plates from inside to outside, the furnace side wall is provided with burners, and the burners comprise preheating section burners, heating section burners and soaking section burners which are sequentially arranged from steel wire inlets to outlets; the furnace top is of an arch structure formed by stacking a plurality of mullite bricks with wide upper parts and narrow lower parts, and two ends of the furnace top are erected on the side wall of the furnace; the furnace hearth is formed by the inner space enclosed by the furnace bottom, the side walls of the two sides of the furnace and the furnace top; a plurality of ash removing mechanisms are arranged at the bottom of the hearth; the ash removing mechanism comprises an ash removing groove transversely arranged on the bottom surface of the hearth, a T-shaped brick inversely arranged in the ash removing groove and an ash removing hole arranged on the side wall of the furnace and corresponding to the ash removing groove; the top surface of the T-shaped brick is in sliding contact with the steel wire; a heat exchange device is arranged between the furnace top close to the steel wire inlet and the top of the frame; the heat exchange device comprises three groups of heat exchangers connected in series from left to right; the left end of the heat exchange device is communicated with the hearth, the right end of the heat exchange device is communicated with the smoke outlet, the air inlet ends of the three groups of heat exchangers are connected with an air inlet pipeline, the air outlet end of the left heat exchanger is connected with a heating section burner, the air outlet end of the middle heat exchanger is connected with a soaking section burner, and the air outlet end of the right heat exchanger is connected with a preheating section burner;
the steel wire induction tempering furnace comprises a support and a plurality of furnace boxes which are arranged on the support in series; a plurality of groups of heat preservation pipes and heating pipes which are arranged side by side and are arranged at intervals are arranged in the furnace box, inner pipes are embedded in the heat preservation pipes and the heating pipes, electromagnetic spacers are arranged on a support between each group of heat preservation pipes and the heating pipes, and spiral copper pipes are wound on the outer circles of the heating pipes; the heat preservation pipes and the heating pipes of the adjacent furnace boxes are correspondingly connected through a connecting mechanism; the connecting mechanism comprises two threaded rods and sleeves, wherein the two threaded rods are internally provided with axial through holes, and the sleeves are screwed at the outer circle ends of the threaded rods to connect the two threaded rods; the threaded rod is installed on the support through a nut, one end of the inner tube is embedded in an axial through hole of the threaded rod, and the distance between the two threaded rods is not less than the length of the inner tube;
according to the safe and energy-saving preparation process of the tire bead steel wire, the guide through hole is a square hole; the wire guide nozzle is made of ceramic materials; the lifting rod, the guide wire pressing block and the guide wire bolt are made of PP plastic materials.
According to the safe and energy-saving preparation process of the tire bead steel wire, the handle is installed at the other end of the cover plate.
According to the safe and energy-saving preparation process of the tire bead steel wire, the cooling medium is water or air.
The invention relates to a safe and energy-saving preparation process of a tire bead steel wire, wherein the height of a furnace top close to a steel wire inlet is lower than the heights of furnace tops at other positions; the right heat exchanger of the heat exchange device is a tube type heat exchanger or a spiral plate type heat exchanger.
The invention relates to a safe and energy-saving preparation process of a tire bead steel wire.
The safe and energy-saving preparation process of the tire bead steel wire comprises the following process steps:
step one, pretreatment: pickling the wire rod, removing a surface oxide layer, when the production of the wire rod is stopped, contracting a cylinder piston rod corresponding to the stopped wire rod in a steel wire lifting device arranged in a pickling tank to drive a lifting rod to lift upwards along a guide through hole on a guide plate, lifting the stopped wire rod to be above the pickling liquid level by a wire guide nozzle at the bottom of the lifting rod, preventing the wire rod from being excessively corroded due to long-time pickling, extending out the cylinder piston rod of the steel wire lifting device when the production is continued, and immersing the wire rod on the acid liquid surface into the acid liquid again by the wire guide nozzle at the bottom of the lifting rod; when the yarn guide nozzle is damaged or blocked, the yarn guide nozzle can be conveniently replaced only by loosening the yarn guide bolt and taking down the yarn guide pressing block; the contact area of the lifting rod and the guide through hole is small, and the friction resistance is small, so that the lifting rod can flexibly move up and down;
the wire rod after acid washing enters a drying furnace for drying after being coated with the borax, when an operator opens a cover plate on the outer side of the furnace wall of the drying furnace for observation, the cover plate drives a baffle plate at the bottom to turn outwards, the baffle plate is separated from an air suction opening, the air suction opening is communicated with an air suction device through a square tube and an outer opening, so that the air pressure at the air suction opening is smaller than that at the window of the cover plate, high-temperature steam in the furnace with pressure preferentially enters the air suction opening to be discharged, and the potential safety hazard caused by direct ejection from the window of the cover plate is avoided;
step two, rough drawing: the wire rod lubricated by the coated boron sand enters a rough drawing device for drawing, a power mechanism drum motor of drawing equipment is integrated below a drum by an integrated drum mechanism, a steel wire is wound on the outer circle of the drum for drawing, the inner wall of the drum is cooled by a cooling nozzle, the influence on quality due to overhigh temperature of the steel wire is prevented, the whole rough drawing equipment is compact in structure, small in occupied space, free of exposed mechanical operation parts, and capable of avoiding the potential safety hazard of mechanical injury;
step three, intermediate heat treatment: the steel wire after rough drawing enters a steel wire heating furnace for heat treatment, and the steel wire is taken out of the furnace for cooling after being heated and insulated by a preheating section, a heating section and a soaking section; in the heating process, the lubricating layer on the surface of the steel wire is gradually peeled off from the steel wire and attached to the surface of the steel wire, when the steel wire passes through the ash removal mechanism, the lubricating layer is scraped off from the surface of the steel wire to the ash removal groove by the T-shaped bricks to form furnace ash, and when a certain amount of furnace ash in the ash removal groove is accumulated, the furnace ash can be conveniently removed without stopping production by opening the ash removal holes; the high-temperature flue gas of the steel wire heating furnace rises from a steel wire inlet to enter a heat exchange device arranged above the furnace top, is discharged after being subjected to full heat exchange by three groups of heat exchangers, and the combustion-supporting air is subjected to heat exchange and temperature rise and then respectively enters burners of a preheating section, a heating section and a soaking section to participate in combustion, so that the waste heat of the high-temperature flue gas is fully utilized; the furnace top, the furnace bottom and the side wall of the furnace body are of a multi-layer heat insulation structure, so that the heat insulation performance is good, and the energy consumption is saved;
step four, fine drawing: the steel wire after the intermediate heat treatment is subjected to surface treatment, coated with borax and dried, and then enters a fine drawing device for secondary drawing, the secondary drawing is consistent with the rough drawing in the second step, and the fine drawing equipment also adopts an integrated winding drum mechanism, so that the fine drawing equipment occupies less space, has no exposed mechanical operation part, and avoids mechanical injury potential safety hazard;
step five, tempering: the steel wire after the fine drawing enters a steel wire induction tempering furnace for tempering, the steel wire continuously enters the inner tubes of a plurality of furnace boxes for heating and heat preservation treatment, when a certain inner tube of a certain furnace box is blocked or damaged and needs to be replaced, a sleeve corresponding to one end of the inner tube is only required to be rotated outwards along the axis of the sleeve to a threaded rod separated from the inner tube, the threaded rod separated from the sleeve is detached from a bracket, the inner tube to be replaced is extracted, a new inner tube is inserted, the threaded rod is installed, and the sleeve is rotated reversely to be connected with the threaded rod to complete the replacement of the inner tube;
step six, bronze plating: after surface treatment, the tempered steel wire enters a bronze plating device, the surface of the steel wire is plated with a layer of bronze, similar to the pretreatment in the first step, a steel wire lifting device arranged in a plating bath lifts the steel wire which is stopped in production to a position above the surface of a plating solution, the steel wire is prevented from being plated with bronze for too long time and the thickness of the plating layer exceeds the standard, when the production is continued, a piston rod of a cylinder of the steel wire lifting device extends out, and a wire guide nozzle at the bottom of a lifting rod enables the steel wire on the surface of the plating solution to be immersed in the plating solution again; and packaging the steel wire into a warehouse after the steel wire is plated with bronze.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the automatic air suction mechanism linked with the observation window cover plate is arranged, so that high-pressure and high-temperature steam in the furnace is automatically discharged from the air suction port when the observation window is opened, and the condition that people are injured due to direct discharge from the observation window is avoided; the motor and the winding drum of the wire drawing machine are designed into an integrated winding drum structure, so that the safety risk caused by exposure of mechanical operation equipment is avoided, and the occupied area of the equipment is saved; by improving the structure of the furnace wall heat-insulating layer, arranging a plurality of groups of heat exchange devices and arranging an automatic ash removal device, the energy storage and heat insulation capacity of the furnace body is improved, the waste heat utilization efficiency is higher, the start-stop frequency of the heating furnace is greatly reduced, the service life of the heating furnace is prolonged, the production energy consumption is greatly saved, and the production efficiency is improved; the connecting mechanisms are arranged among different furnace boxes of the induction tempering furnace, the inner tubes in the furnace boxes are connected in sections, when the inner tubes are replaced, the whole inner tube of the tempering furnace does not need to be replaced, the inner tube with the problem can be conveniently replaced only by disassembling and assembling the connecting mechanisms, the replacement cost is saved, the replacement efficiency is improved, the mutual inductance influence of the adjacent coils is improved by the arranged electromagnetic separation pieces, the heating efficiency is improved, and the energy consumption is reduced; the guide device and the guide wire nozzle installation mode of the wire lifting device are simplified, so that the lifting rod runs more smoothly, the guide wire nozzle is more convenient to replace, the failure rate is reduced, and the production efficiency is improved.
Drawings
FIG. 1 is a process flow diagram of the safe and energy-saving preparation process of the tire bead wire.
Fig. 2 is a schematic structural view of a steel wire lifting device of the safe and energy-saving preparation process of the tire bead steel wire.
Fig. 3 is a schematic view of a wire guide nozzle mounting structure of a steel wire lifting device in the safe and energy-saving preparation process of the tire bead steel wire.
FIG. 4 is a schematic structural view of a safety observation window of the safe and energy-saving preparation process of the tire bead wire.
FIG. 5 is a schematic view of an integrated reel structure of the safe and energy-saving preparation process of the tire bead wire.
FIG. 6 is a schematic view of the cross-sectional structure of a steel wire heating furnace of the safe and energy-saving preparation process of the tire bead steel wire of the invention.
FIG. 7 is a schematic view of a furnace sidewall structure of a steel wire heating furnace of the safe and energy-saving preparation process of the bead steel wire of the present invention.
FIG. 8 is a schematic structural diagram of an ash removal mechanism of a steel wire heating furnace of the safe and energy-saving preparation process of the tire bead steel wire.
FIG. 9 is a schematic structural view of a heat exchange device of a steel wire heating furnace of the safe and energy-saving preparation process of the tire bead steel wire.
Fig. 10 is a schematic view of a steel wire induction tempering furnace of the safe and energy-saving preparation process of the tire bead steel wire.
Fig. 11 is a schematic structural view of a connecting mechanism of a steel wire induction tempering furnace of the safe and energy-saving preparation process of the tire bead steel wire.
Wherein:
a steel wire 100;
the device comprises a box body 1.1, a guide plate 1.2, a lifting rod 1.3, a cylinder 1.4, a guide through hole 1.5, a yarn guide nozzle 1.6, a yarn guide pressing block 1.7 and a yarn guide bolt 1.8;
the device comprises a cover plate 2.1, a square tube 2.2, an outer opening 2.3, an air suction opening 2.4, a baffle 2.5 and a handle 2.6;
the winding drum comprises a winding drum frame 3.1, a winding drum motor 3.2, a winding drum 3.3, a protective cover 3.4, a concave part 3.5, a convex part 3.6, a cooling nozzle 3.7, a cooling medium inlet 3.8 and a cooling medium outlet 3.9;
4.1 of frame, 4.2 of furnace bottom, 4.3 of furnace sidewall, 4.4 of furnace roof, 4.5 of burner hearth, 4.6 of ash cleaning mechanism, 4.8 of burner;
4.2.1 of a gasket, 4.2.2 of a high-alumina brick, 4.2.3 of a clay brick, 4.2.4 of a backing plate, 4.3.1 of a corundum brick, 4.3.2 of a fiber blanket, 4.3.3 of a nanometer heat insulation plate, 4.3.4 of the backing plate on the furnace side, 4.6.1 of a dust cleaning groove, 4.6.2 of a T-shaped brick, 4.6.3 of a dust cleaning hole and 4.7.1 of a heat exchanger;
the device comprises a support 5.1, a furnace box 5.2, a heat preservation pipe 5.3, a heating pipe 5.4, an inner pipe 5.7, an electromagnetic spacer 5.6, a spiral copper pipe 5.5 and a connecting mechanism 5.8;
threaded rod 5.8.1, sleeve 5.8.2, nut 5.8.3, axial through hole 5.8.4.
Detailed Description
Referring to fig. 1 to 11, the safe and energy-saving preparation process of the bead wire is realized based on a special efficient and energy-saving production line for the bead wire, and the special efficient and energy-saving production line for the bead wire comprises a pretreatment device, a rough drawing device, an intermediate heat treatment device, a fine drawing device, a tempering device and a bronze plating device which are sequentially arranged, and is characterized in that: the pretreatment device and the bronze plating device both comprise steel wire lifting devices; the pretreatment device comprises a safety observation window mechanism; the rough drawing device and the fine drawing device both comprise integrated reel mechanisms; the intermediate heat treatment device comprises a steel wire heating furnace; the tempering device comprises a steel wire induction tempering furnace;
the steel wire lifting device comprises a box body 1.1 internally provided with a cylinder 1.4, a guide plate 1.2 arranged at the bottom of the box body 1.1 and a lifting rod 1.3 of which the top is connected with a piston rod of the cylinder 1.4; the guide plate 1.2 is provided with a guide through hole 1.5, the lifting rod 1.3 is embedded in the guide through hole 1.5 in a sliding manner, and the cross section of the lifting rod 1.3 is the same as that of the guide through hole 1.5; the bottom end of the lifting rod 1.3 is provided with a guide wire nozzle 1.6 and a guide wire pressing block 1.7, the guide wire pressing block 1.7 is installed on the lifting rod 1.3 through a guide wire bolt 1.8, and the guide wire nozzle 1.6 is embedded between the guide wire pressing block 1.7 and the lifting rod 1.3;
the safety observation window mechanism comprises a cover plate 2.1 arranged on the outer side of the oven wall of the drying oven and a square tube 2.2 arranged on the inner side of the oven wall; the top surface of the square tube 2.2 is provided with an outer opening 2.3 communicated with an air suction device through the furnace wall, the side surface is provided with an air suction opening 2.4, and the outer opening 2.3 and the air suction opening 2.4 are both communicated with the inner space of the square tube 2.2; the left end of the cover plate 2.1 is hinged to the furnace wall, a baffle plate 2.5 is arranged at the position, close to the left end, of the bottom surface of the cover plate 2.1, and the lower end of the baffle plate 2.5 covers the air suction opening 2.4;
the integrated winding drum mechanism comprises a winding drum rack 3.1, a winding drum motor 3.2 arranged below the winding drum rack 3.1 and a winding drum 3.3 arranged above the winding drum rack 3.1; the rotor of the drum motor 3.2 penetrates through the drum frame 3.1 and is in rotary contact with the drum frame 3.1 through a bearing; the winding drum 3.3 is sleeved on the top of a rotor of a winding drum motor 3.2, a protective cover 3.4 is arranged in the winding drum 3.3, and a concave part 3.5 arranged on the edge of the bottom of the periphery is matched with and in sliding contact with a convex part 3.6 at the corresponding position of a winding drum rack 3.1; the winding drum rack 3.1 is provided with a cooling nozzle 3.7, a cooling medium inlet 3.8 and a cooling medium outlet 3.9, and the cooling nozzle 3.7 is communicated with the cooling medium inlet 3.8 through a pipeline; the cooling nozzle 3.7 sprays the cooling medium to the inner wall of the winding drum 3.3;
the steel wire heating furnace comprises a frame 4.1 and a furnace body arranged in the frame 4.1; the furnace body comprises a furnace bottom 4.2, a furnace side wall 4.3 and a furnace top 4.4 which are arranged from bottom to top in sequence; the furnace bottom 4.2 is sequentially provided with a liner 4.2.1, a high-alumina brick 4.2.2, a clay brick 4.2.3 and a backing plate 4.2.4 from inside to outside; the furnace side wall 4.3 is sequentially provided with corundum bricks 4.3.1, high-alumina bricks 4.2, fiber blankets 4.3.2, nano heat insulation plates 4.3.3, fiber blankets 4.3.2 and furnace side backing plates 4.3.4 from inside to outside, the furnace side wall 4.3 is provided with a burner 4.8, and the burner 4.8 comprises a preheating section burner, a heating section burner and a soaking section burner which are sequentially arranged from a steel wire inlet to an outlet; the furnace top 4.4 is of an arch structure formed by a plurality of mullite bricks 4.4.1 with wide upper parts and narrow lower parts, and two ends of the furnace top 4.4 are erected on the side wall 4.3 of the furnace; the inner space enclosed by the furnace bottom 4.2, the side walls 4.3 of the two sides and the furnace top 4.4 forms a hearth 4.5; a plurality of ash cleaning mechanisms 4.6 are arranged at the bottom of the hearth 4.5; the ash removal mechanism 4.6 comprises an ash removal groove 4.6.1 transversely arranged on the bottom surface of the hearth, a T-shaped brick 4.6.2 inversely arranged in the ash removal groove 4.6.1, and an ash removal hole 4.6.3 arranged on the side wall 4.3 of the furnace and corresponding to the ash removal groove 4.6.1; the top surface of the T-shaped brick 4.6.2 is in sliding contact with the steel wire 100; a heat exchange device is arranged between the top 4.4 of the furnace top close to the furnace inlet of the steel wire 100 and the top of the frame 4.1; the heat exchange device comprises three groups of heat exchangers 4.7.1 which are connected in series from left to right; the left end of the heat exchange device is communicated with the hearth 4.5, the right end of the heat exchange device is communicated with the smoke outlet, the air inlet ends of the three groups of heat exchangers 4.7.1 are connected with an air inlet pipeline, the air outlet end of the left heat exchanger 4.7.1 is connected with a heating section burner, the air outlet end of the middle heat exchanger 4.7.1 is connected with a soaking section burner, and the air outlet end of the right heat exchanger 4.7.1 is connected with a preheating section burner;
the steel wire induction tempering furnace comprises a support 5.1 and a plurality of furnace boxes 5.2 which are arranged on the support 5.1 in series; a plurality of groups of heat preservation pipes 5.3 and heating pipes 5.4 which are arranged side by side and are arranged at intervals are arranged in the furnace box 5.2, inner pipes 5.7 are embedded in the heat preservation pipes 5.3 and the heating pipes 5.4, electromagnetic spacers 5.6 are arranged on a support 5.1 between each group of heat preservation pipes 5.3 and each group of heating pipes 5.4, and spiral copper pipes 5.5 are wound on the outer circles of the heating pipes 5.4; the heat preservation pipe 5.3 and the heating pipe 5.4 of the adjacent furnace box 5.2 are correspondingly connected through a connecting mechanism 5.8; the connecting mechanism 5.8 comprises two threaded rods 5.8.1 with axial through holes 5.8.4 arranged inside and a sleeve 5.8.2 which is screwed at the end part of the outer circle of the threaded rod 5.8.1 and connects the two threaded rods 5.8.1; the threaded rod 5.8.1 is mounted on the bracket 5.1 through a nut 5.8.3, one end of the inner tube 5.7 is embedded in an axial through hole 5.8.4 of the threaded rod 5.8.1, and the distance between the two threaded rods 5.8.1 is not less than the length of the inner tube 5.7;
further, the guide through hole 1.5 is a square hole; the wire guide nozzle 1.6 is made of ceramic material; the lifting rod 1.3, the guide wire pressing block 1.7 and the guide wire bolt 1.8 are made of PP plastic materials.
Furthermore, a handle 2.6 is arranged at the other end of the cover plate 2.1.
Further, the cooling medium is water or air.
Further, the height of the furnace top 4.4 close to the furnace inlet of the steel wire 100 is lower than that of the furnace tops 4.4 at other positions; and the right heat exchanger 4.7.1 of the heat exchange device is a shell and tube heat exchanger or a spiral plate heat exchanger.
Furthermore, the heat preservation pipe 5.3, the heating pipe 5.4 and the inner pipe 5.7 are made of boron nitride.
The safe and energy-saving preparation process of the tire bead steel wire comprises the following process steps:
step one, pretreatment: pickling the wire rod, removing a surface oxide layer, when the production of the wire rod is stopped, a piston rod of a cylinder 1.4, corresponding to the stopped wire rod, in a steel wire lifting device arranged in a pickling tank is contracted to drive a lifting rod 1.3 to lift upwards along a guide through hole 1.5 on a guide plate 1.2, a wire guide nozzle 1.6 at the bottom of the lifting rod 1.3 lifts the stopped wire rod to be above the pickling liquid level, so that the wire rod is prevented from being excessively corroded due to long-time pickling, when the production is continued, the piston rod of the cylinder 1.4 of the steel wire lifting device extends out, and the wire guide nozzle 1.6 at the bottom of the lifting rod 1.3 immerses the wire rod on the acid liquid surface into the acid liquid again; when the thread guide nozzle 1.6 is damaged or blocked, the thread guide nozzle 1.6 can be conveniently replaced only by loosening the thread guide bolt 1.8 and taking down the thread guide pressing block 1.7; the contact area of the lifting rod 1.3 and the guide through hole 1.5 is small, and the friction resistance is small, so that the lifting rod 1.3 can flexibly move up and down;
the wire rod after acid washing enters a drying furnace for drying after being coated with borax, when an operator opens a cover plate 2.1 on the outer side of the furnace wall of the drying furnace for observation, the cover plate 2.1 drives a baffle plate 2.5 at the bottom to turn outwards, the baffle plate 2.5 is separated from an air suction opening 2.4, the air suction opening 2.4 is communicated with an air suction device through a square pipe 2.2 and an outer opening 2.3, so that the air pressure at the position of the air suction opening 2.4 is smaller than that at the position of a window of the cover plate 2.1, high-temperature steam with pressure in the furnace preferentially enters the air suction opening 2.4 to be discharged, and the potential safety hazard caused by directly ejecting the steam from the position of the window of the cover plate 2.1 is avoided;
step two, rough drawing: the wire rod lubricated by the boron-coated sand enters a rough drawing device for drawing, a power mechanism drum motor 3.2 of drawing equipment is integrated below a drum 3.3 by an integrated drum mechanism, a steel wire is wound on the outer circle of the drum 3.3 for drawing, the inner wall of the drum 3.3 is cooled by a cooling nozzle 3.7, the influence on the quality due to overhigh temperature of the steel wire is prevented, the integral rough drawing equipment is compact in structure, occupies less space, has no exposed mechanical operation part, and avoids the potential safety hazard of mechanical injury;
step three, intermediate heat treatment: the steel wire after rough drawing enters a steel wire heating furnace for heat treatment, and the steel wire is taken out of the furnace for cooling after being heated and insulated by a preheating section, a heating section and a soaking section; in the heating process, the lubricating layer on the surface of the steel wire is gradually stripped from the steel wire and attached to the surface of the steel wire, when the steel wire passes through the ash removal mechanism 4.6, the T-shaped bricks 4.6.2 scrape the lubricating layer from the surface of the steel wire to the ash removal groove 4.6.1 to form furnace ash, and when a certain amount of furnace ash is accumulated in the ash removal groove 4.6.1, the furnace ash can be conveniently removed without stopping production by opening the ash removal holes 4.6.3; high-temperature flue gas of the steel wire heating furnace rises from a steel wire inlet to enter a heat exchange device arranged above a furnace top 4.4, the high-temperature flue gas is discharged after being subjected to full heat exchange by three groups of heat exchangers 4.7.1, combustion-supporting air is subjected to heat exchange and temperature rise and then respectively enters a preheating section, a heating section and a soaking section to participate in combustion, and the waste heat of the high-temperature flue gas is fully utilized; the furnace top, the furnace bottom and the side wall of the furnace body are of a multi-layer heat insulation structure, so that the heat insulation performance is good, and the energy consumption is saved;
step four, fine drawing: after the intermediate heat treatment, the steel wire is subjected to surface treatment, coated with borax and dried, and then enters a fine drawing device for secondary drawing, the secondary drawing is consistent with the rough drawing in the second step, and the fine drawing equipment also adopts an integrated winding drum mechanism, so that the fine drawing equipment occupies less space, has no exposed mechanical operation parts, and avoids the potential safety hazard of mechanical injury;
step five, tempering: the steel wire after the fine drawing enters a steel wire induction tempering furnace for tempering, the steel wire continuously enters the inner tubes 5.7 of a plurality of furnace boxes 5.2 for heating and heat preservation treatment, when a certain inner tube 5.7 of a certain furnace box is blocked or damaged and the inner tube 5.7 needs to be replaced, only the sleeve 5.8.2 corresponding to one end of the inner tube 5.7 needs to be rotated outwards along the axis to be separated from the threaded rod 5.8.1 of the inner tube 5.7, then the threaded rod 5.8.1 separated from the sleeve 5.8.2 is detached from the bracket 5.1, the inner tube 5.7 to be replaced is drawn out, a new inner tube 5.7 is inserted, the threaded rod 5.8.1 is installed, and then the sleeve 5.8.2 is rotated reversely to be connected with the threaded rod 5.8.1, so that the replacement of the inner tube 5.7 can be completed;
step six, bronze plating: after surface treatment, the tempered steel wire enters a bronze plating device, the surface of the steel wire is plated with a layer of bronze, similar to the pretreatment in the step one, a steel wire lifting device arranged in a plating bath lifts the steel wire which is stopped in production to a position above the surface of a plating solution, the phenomenon that the thickness of the plating layer exceeds the standard due to overlong bronze plating time of the steel wire is prevented, when the production is continued, a piston rod of a cylinder 1.4 of the steel wire lifting device extends out, and a wire guide nozzle 1.6 at the bottom of a lifting rod 1.3 immerses the steel wire on the surface of the plating solution into the plating solution again; and packaging the steel wire into a warehouse after the steel wire is plated with bronze.
In addition: it should be noted that the above-mentioned embodiment is only a preferred embodiment of the present patent, and any modification or improvement made by those skilled in the art based on the above-mentioned conception is within the protection scope of the present patent.
Claims (6)
1. A safe and energy-saving preparation process of a tire bead wire is realized based on a special efficient and energy-saving production line for the tire bead wire, and the special efficient and energy-saving production line for the tire bead wire comprises a pretreatment device, a rough drawing device, an intermediate heat treatment device, a fine drawing device, a tempering device and a bronze plating device which are sequentially arranged, and is characterized in that: the pretreatment device and the bronze plating device both comprise steel wire lifting devices; the pretreatment device comprises a safety observation window mechanism; the rough drawing device and the fine drawing device both comprise integrated reel mechanisms; the intermediate heat treatment device comprises a steel wire heating furnace; the tempering device comprises a steel wire induction tempering furnace;
the steel wire lifting device comprises a box body (1.1) internally provided with a cylinder (1.4), a guide plate (1.2) arranged at the bottom of the box body (1.1) and a lifting rod (1.3) the top of which is connected with a piston rod of the cylinder (1.4); the guide plate (1.2) is provided with a guide through hole (1.5), the lifting rod (1.3) is embedded in the guide through hole (1.5) in a sliding manner, and the cross sections of the lifting rod (1.3) and the guide through hole (1.5) are the same in shape; the bottom end of the lifting rod (1.3) is provided with a guide wire nozzle (1.6) and a guide wire pressing block (1.7), the guide wire pressing block (1.7) is installed on the lifting rod (1.3) through a guide wire bolt (1.8), and the guide wire nozzle (1.6) is embedded between the guide wire pressing block (1.7) and the lifting rod (1.3);
the safety observation window mechanism comprises a cover plate (2.1) arranged on the outer side of the oven wall of the drying oven and a square tube (2.2) arranged on the inner side of the oven wall; an outer opening (2.3) communicated with the air suction device is formed in the top surface of the square pipe (2.2) through the furnace wall, an air suction opening (2.4) is formed in the side surface of the square pipe, and the outer opening (2.3) and the air suction opening (2.4) are both communicated with the inner space of the square pipe (2.2); the left end of the cover plate (2.1) is hinged to the furnace wall, a baffle plate (2.5) is arranged at the position, close to the left end, of the bottom surface of the cover plate (2.1), and the lower end of the baffle plate (2.5) covers the air suction opening (2.4);
the integrated winding drum mechanism comprises a winding drum rack (3.1), a winding drum motor (3.2) arranged below the winding drum rack (3.1) and a winding drum (3.3) arranged above the winding drum rack (3.1); the rotor of the drum motor (3.2) penetrates through the drum frame (3.1) and is in rotary contact with the drum frame (3.1) through a bearing; the winding drum (3.3) is sleeved on the top of a rotor of a winding drum motor (3.2), a protective cover (3.4) is arranged on an inner ring of the winding drum (3.3), and a concave part (3.5) arranged on the edge of the bottom of the periphery of the winding drum (3.3) is matched with and in sliding contact with a convex part (3.6) at a corresponding position of a winding drum rack (3.1); the winding drum rack (3.1) is provided with a cooling nozzle (3.7), a cooling medium inlet (3.8) and a cooling medium outlet (3.9), and the cooling nozzle (3.7) is communicated with the cooling medium inlet (3.8) through a pipeline; the cooling nozzle (3.7) sprays the cooling medium to the inner wall of the winding drum (3.3);
the steel wire heating furnace comprises a frame (4.1) and a furnace body arranged in the frame (4.1); the furnace body comprises a furnace bottom (4.2), a furnace side wall (4.3) and a furnace top (4.4) which are arranged from bottom to top in sequence; the furnace bottom (4.2) is sequentially provided with a liner (4.2.1), a high-alumina brick (4.2.2), a clay brick (4.2.3) and a backing plate (4.2.4) from inside to outside; the furnace side wall (4.3) is sequentially provided with corundum bricks (4.3.1), high-alumina bricks (4.2.2), fiber blankets (4.3.2), nano heat insulation plates (4.3.3), fiber blankets (4.3.2) and a furnace side backing plate (4.3.4) from inside to outside, the furnace side wall (4.3) is provided with a burner (4.8), and the burner (4.8) comprises a preheating section burner, a heating section burner and a soaking section burner which are sequentially arranged from a steel wire inlet to a steel wire outlet; the furnace top (4.4) is of an arch structure formed by a plurality of mullite bricks (4.4.1) with wide upper parts and narrow lower parts, and two ends of the furnace top (4.4) are erected on the side wall (4.3) of the furnace; the inner space enclosed by the furnace bottom (4.2), the side walls (4.3) of the two sides of the furnace and the furnace top (4.4) forms a hearth (4.5); a plurality of ash cleaning mechanisms (4.6) are arranged at the bottom of the hearth (4.5); the ash removal mechanism (4.6) comprises an ash removal groove (4.6.1) transversely arranged on the bottom surface of the hearth, a T-shaped brick (4.6.2) inverted in the ash removal groove (4.6.1), and an ash removal hole (4.6.3) formed in the furnace side wall (4.3) at a position corresponding to the ash removal groove (4.6.1); the top surface of the T-shaped brick (4.6.2) is in sliding contact with the steel wire (100); a heat exchange device is arranged between the top (4.4) of the furnace top close to the inlet of the steel wire (100) and the top of the frame (4.1); the heat exchange device comprises three groups of heat exchangers (4.7.1) which are connected in series from left to right; the left end of the heat exchange device is communicated with the hearth (4.5), the right end of the heat exchange device is communicated with the smoke outlet, the air inlet ends of the three groups of heat exchangers (4.7.1) are connected with an air inlet pipeline, the air outlet end of the left heat exchanger (4.7.1) is connected with the heating section burner, the air outlet end of the middle heat exchanger (4.7.1) is connected with the soaking section burner, and the air outlet end of the right heat exchanger (4.7.1) is connected with the preheating section burner;
the steel wire induction tempering furnace comprises a support (5.1) and a plurality of furnace boxes (5.2) which are arranged on the support (5.1) in series; a plurality of groups of heat preservation pipes (5.3) and heating pipes (5.4) which are arranged side by side and are arranged at intervals are arranged in the furnace box (5.2), inner pipes (5.7) are embedded in the heat preservation pipes (5.3) and the heating pipes (5.4), an electromagnetic spacer (5.6) is arranged on a support (5.1) between each group of heat preservation pipes (5.3) and the heating pipes (5.4), and spiral copper pipes (5.5) are wound on the outer circles of the heating pipes (5.4); the heat preservation pipe (5.3) and the heating pipe (5.4) of the adjacent furnace box (5.2) are correspondingly connected through a connecting mechanism (5.8); the connecting mechanism (5.8) comprises two threaded rods (5.8.1) with axial through holes (5.8.4) arranged inside and a sleeve (5.8.2) which is screwed at the outer circle end of the threaded rod (5.8.1) and connects the two threaded rods (5.8.1); the threaded rod (5.8.1) is mounted on the bracket (5.1) through a nut (5.8.3), one end of the inner tube (5.7) is embedded in an axial through hole (5.8.4) of the threaded rod (5.8.1), and the distance between the two threaded rods (5.8.1) is not less than the length of the inner tube (5.7);
the safe and energy-saving preparation process of the tire bead steel wire comprises the following process steps:
step one, pretreatment: pickling a wire rod, removing a surface oxide layer, when the production of the wire rod is stopped, a piston rod of a cylinder (1.4) corresponding to the stopped wire rod in a steel wire lifting device arranged in a pickling tank is contracted to drive a lifting rod (1.3) to lift upwards along a guide through hole (1.5) on a guide plate (1.2), a wire guide nozzle (1.6) at the bottom of the lifting rod (1.3) lifts the stopped wire rod to be above a pickling liquid level to prevent the wire rod from being excessively corroded due to long-time pickling, when the production is continued, the piston rod of the cylinder (1.4) of the steel wire lifting device extends out, and the wire rod on an acid liquid surface is immersed in acid liquid again by the wire guide nozzle (1.6) at the bottom of the lifting rod (1.3); when the guide wire nozzle (1.6) is damaged or blocked, the guide wire nozzle (1.6) can be conveniently replaced only by loosening the guide wire bolt (1.8) and taking down the guide wire pressing block (1.7); the contact area of the lifting rod (1.3) and the guide through hole (1.5) is small, and the friction resistance is small, so that the lifting rod (1.3) can flexibly move up and down;
the wire rod after acid washing enters a drying furnace for drying after being coated with borax, when an operator opens a cover plate (2.1) on the outer side of the furnace wall of the drying furnace for observation, the cover plate (2.1) drives a baffle plate (2.5) at the bottom to turn outwards, the baffle plate (2.5) is separated from an air suction opening (2.4), the air suction opening (2.4) is communicated with an air suction device through a square pipe (2.2) and an outer opening (2.3), so that the air pressure at the air suction opening (2.4) is smaller than that at the window of the cover plate (2.1), high-temperature steam with pressure in the furnace preferentially enters the air suction opening (2.4) to be discharged, and the phenomenon that the steam is directly ejected from the window of the cover plate (2.1) to form potential safety hazards is avoided;
step two, rough drawing: the wire rod lubricated by the boron-coated sand enters a rough drawing device for drawing, a power mechanism drum motor (3.2) of the drawing device is integrated below a drum (3.3) by the integrated drum mechanism, a steel wire is wound on the outer circle of the drum (3.3) for drawing, the inner wall of the drum (3.3) is cooled by a cooling nozzle (3.7), the influence on quality due to overhigh temperature of the steel wire is prevented, the integral rough drawing device is compact in structure, small in occupied space, free of exposed mechanical operation parts, and capable of avoiding the potential safety hazard of mechanical injury;
step three, intermediate heat treatment: the steel wire after rough drawing enters a steel wire heating furnace for heat treatment, and the steel wire is taken out of the furnace for cooling after being heated and insulated by a preheating section, a heating section and a soaking section; in the heating process, the lubricating layer on the surface of the steel wire is gradually stripped from the steel wire and attached to the surface of the steel wire, when the steel wire passes through the ash removing mechanism (4.6), the T-shaped bricks (4.6.2) scrape the lubricating layer from the surface of the steel wire to the ash removing groove (4.6.1) to form furnace ash, and when a certain amount of furnace ash is accumulated in the ash removing groove (4.6.1), the furnace ash can be conveniently removed without stopping production by opening the ash removing holes (4.6.3); high-temperature flue gas of the steel wire heating furnace rises from a steel wire inlet to enter a heat exchange device arranged above a furnace top (4.4), is discharged after being subjected to full heat exchange by three groups of heat exchangers (4.7.1), and combustion-supporting air respectively enters a preheating section, a heating section and a soaking section to participate in combustion after being subjected to heat exchange and temperature rise, so that the waste heat of the high-temperature flue gas is fully utilized; the furnace top, the furnace bottom and the side wall of the furnace body are of a multi-layer heat insulation structure, so that the heat insulation performance is good, and the energy consumption is saved;
step four, fine drawing: the steel wire after the intermediate heat treatment is subjected to surface treatment, coated with borax and dried, and then enters a fine drawing device for secondary drawing, the secondary drawing is consistent with the rough drawing in the second step, and the fine drawing equipment also adopts an integrated winding drum mechanism, so that the fine drawing equipment occupies less space, has no exposed mechanical operation part, and avoids mechanical injury potential safety hazard;
step five, tempering: the steel wire after the fine drawing enters a steel wire induction tempering furnace for tempering, the steel wire continuously enters the inner tubes (5.7) of a plurality of furnace boxes (5.2) for heating and heat preservation treatment, when a certain inner tube (5.7) of a certain furnace box is blocked or damaged and the inner tube (5.7) needs to be replaced, the sleeve (5.8.2) corresponding to one end of the inner tube (5.7) is outwards rotated along the axis to be separated from the threaded rod (5.8.1) of the inner tube (5.7), then the threaded rod (5.8.1) separated from the sleeve (5.8.2) is detached from the bracket (5.1), the inner tube (5.7) to be replaced is extracted, a new inner tube (5.7) is inserted, the threaded rod (5.8.1) is installed, and then the sleeve (5.8.2) is reversely rotated to be connected with the threaded rod (5.8.1), so that the inner tube (5.7) can be replaced;
step six, bronze plating: the tempered steel wire enters a bronze plating device after surface treatment, a layer of bronze is plated on the surface of the steel wire, similar to the pretreatment of the step one, a steel wire lifting device arranged in a plating tank lifts the steel wire which is stopped in production to a position above the surface of plating solution, the phenomenon that the thickness of the plating layer exceeds the standard due to overlong bronze plating time of the steel wire is prevented, when the production is continued, a piston rod of a cylinder (1.4) of the steel wire lifting device extends out, a wire guide nozzle (1.6) at the bottom of a lifting rod (1.3) immerses the steel wire on the surface of the plating solution into the plating solution again, and the steel wire can be packaged and warehoused after being plated with copper.
2. A safe and energy-saving preparation process of a bead wire according to claim 1, characterized in that: the guide through hole (1.5) is a square hole; the wire guide nozzle (1.6) is made of ceramic material; the lifting rod (1.3), the guide wire pressing block (1.7) and the guide wire bolt (1.8) are made of PP plastic materials.
3. The safe and energy-saving preparation process of the bead wire according to claim 1, characterized in that: the other end of the cover plate (2.1) is provided with a handle (2.6).
4. A safe and energy-saving preparation process of a bead wire according to claim 1, characterized in that: the cooling medium is water or air.
5. A safe and energy-saving preparation process of a bead wire according to claim 1, characterized in that: the height of the furnace top (4.4) close to the furnace inlet of the steel wire (100) is lower than that of the furnace tops (4.4) at other positions; the right heat exchanger (4.7.1) of the heat exchange device is a shell and tube heat exchanger or a spiral plate heat exchanger.
6. A safe and energy-saving preparation process of a bead wire according to claim 1, characterized in that: the heat preservation pipe (5.3), the heating pipe (5.4) and the inner pipe (5.7) are made of boron nitride.
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| CN102319763A (en) * | 2011-07-19 | 2012-01-18 | 江苏胜达科技有限公司 | Processing method of phi 2.10mmHT tempered bead wire |
| CN102828017A (en) * | 2012-09-14 | 2012-12-19 | 南京钢铁股份有限公司 | Heating process of wire rod for tyre bead steel wire |
| CN104404422B (en) * | 2014-12-02 | 2017-05-10 | 无锡市新科冶金设备有限公司 | Preheating-type upwardly-heating steel wire zinc-plating furnace |
| CN107377660B (en) * | 2017-07-11 | 2019-05-24 | 山东大业股份有限公司 | A kind of production method of steel bead wire |
| CN107814333A (en) * | 2017-11-28 | 2018-03-20 | 江苏胜达科技有限公司 | Steel wire lifting device |
| CN108930044A (en) * | 2018-06-29 | 2018-12-04 | 柳州市横阳机械有限公司 | The processing method of steel bead wire |
| CN108977650A (en) * | 2018-09-12 | 2018-12-11 | 江苏胜达科技有限公司 | A kind of unleaded steel bead wire tempering heating device |
| CN110093490B (en) * | 2019-05-17 | 2023-04-18 | 江苏胜达科技有限公司 | Intelligent production system and production method for tire bead steel wire |
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2020
- 2020-12-04 CN CN202011403241.2A patent/CN112588864B/en active Active
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