CN111690890A

CN111690890A - Hot galvanizing packaging steel strip production equipment and production method and hot galvanizing packaging steel strip

Info

Publication number: CN111690890A
Application number: CN202010577500.7A
Authority: CN
Inventors: 杨士强; 刘盛群
Original assignee: Bazhou Mastercard Technology Co ltd
Current assignee: Bazhou Mastercard Technology Co ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2020-09-22

Abstract

The application provides hot-dip galvanizing packaging steel strip production equipment, a hot-dip galvanizing packaging steel strip production method and the hot-dip galvanizing packaging steel strip, which comprise an uncoiler, a butt welder, a first tension device, a feeding loop, a second tension device, a longitudinal shearing and slitting machine, an edge trimmer, a third tension device, a heat treatment furnace, a hot-melting zinc pot, an air cooling device, a water cooling device, a fourth tension device, a roller coater, a drying and curing machine, a discharging loop, a fifth independent tension device and a coiling machine which are sequentially arranged. The beneficial effect of this application is: and the steel strip with the first width after being fed is cut in the width direction through a slitting machine to form a plurality of steel strips with the second width, and the steel strips with the second width are simultaneously input into a hot-dip galvanizing pot to be subjected to hot galvanizing treatment, so that each surface of each steel strip with the second width is subjected to galvanizing treatment, and the corrosion resistance requirement of each surface of the steel strip is better met.

Description

Hot galvanizing packaging steel strip production equipment and production method and hot galvanizing packaging steel strip

Technical Field

The disclosure relates to the technical field of hot galvanizing of steel strips, in particular to hot galvanizing packaging steel strip production equipment and a production method and a hot galvanizing packaging steel strip.

Background

The galvanized steel strip is processed by the procedures of pickling, galvanizing, packaging and the like of common steel strips, and has good corrosion resistance, so the galvanized steel strip is widely applied. The method is mainly used for manufacturing metal articles which are cold-processed and are not galvanized any more. For example: light steel keel, guardrail net peach-shaped column, water tank, rolling door, bridge frame and other metal products. In the prior art, after the medium-width steel strip is subjected to galvanizing treatment through the hot-melting zinc pot, each surface of the medium-width steel strip is galvanized, the galvanized medium-width steel strip is cut into thin steel strips meeting the width required by the packaging steel strip after passing through the longitudinal shearing and slitting machine, and the narrow steel strip is formed by cutting the galvanized medium-width steel strip, so that the cutting surface of the narrow steel strip is not subjected to galvanizing treatment, and therefore the narrow steel strip is applied to the packaging field, and the packaging steel strip is unstable in use environment, and the side surface of the packaging steel strip which is not galvanized is easy to corrode in severe environment, so that the use strength requirement of the packaging steel strip is influenced.

Disclosure of Invention

The application aims to solve the problems and provides hot-dip galvanized steel strip production equipment, a hot-dip galvanized steel strip production method and a hot-dip galvanized steel strip.

The hot-dip galvanized steel strip packaging production equipment comprises an uncoiler, a butt welder, a first tension device, a feeding loop, a second tension device, a slitting and slitting machine, an edge trimmer, a third tension device, a heat treatment furnace, a hot-melting zinc pot, an air cooling device, a water cooling device, a fourth tension device, a roller coater, a drying and curing machine, a blanking loop, a fifth independent tension device and a coiler which are sequentially arranged; the uncoiler is used for uncoiling and flattening the coiled steel strip with the first width; the butt welding machine is used for welding the end parts of the adjacent steel strips together; the longitudinal shearing slitting machine is used for cutting the steel belt with the first width into a plurality of parallel steel belts with a second width, and the second width is smaller than the first width; the heat treatment furnace is used for carrying out heat treatment on each steel strip with the second width; the hot-melting zinc pot is used for carrying out hot galvanizing treatment on each surface of each steel strip with the second width; the blanking loop is used for winding and storing each steel belt with the second width; the coiling machine is used for coiling each steel strip with the second width into a plate.

According to the technical scheme provided by the embodiment of the application, the coiling machine comprises at least one group of guide devices, each guide device comprises a first base, a first linear guide rail, a first horizontal driving mechanism and a guide mechanism are arranged on each first base, the guide mechanisms are clamped in the first linear guide rails, and the first horizontal driving mechanisms drive the guide mechanisms to move along the first linear guide rails; the guiding mechanism comprises a guide wheel assembly, a shearing cutter assembly and a shearing driving assembly, the shearing cutter assembly is arranged on one side of the guide wheel assembly, and the shearing driving assembly drives the shearing cutter assembly to move towards the direction close to the guide wheel assembly or far away from the guide wheel assembly.

According to the technical scheme provided by the embodiment of the application, the guide wheel assembly comprises a first guide wheel, a second guide wheel and a third guide wheel which are sequentially arranged according to the conveying direction of the packed steel belt; the shearing knife assembly is arranged between the corresponding first guide wheel and the corresponding second guide wheel or between the corresponding second guide wheel and the corresponding third guide wheel.

According to the technical scheme provided by the embodiment of the application, the shearing driving assembly comprises a first vertical driving hydraulic cylinder, the piston end of the first vertical driving hydraulic cylinder is connected with a shearing sliding block, and a curve slideway with a set shape and extending along the moving direction of the piston end of the first vertical driving hydraulic cylinder is arranged on the shearing sliding block; the shearing knife assembly comprises a cam and a shearing portion, the cam is connected in a clamping manner in the curve slideway, and the first vertical driving hydraulic cylinder drives the shearing portion to move horizontally through the cam connected in the curve slideway in a clamping manner.

According to the technical scheme that this application embodiment provided, shearing portion moves the sword and cuts quiet sword including shearing, cut and move sword and cam fixed connection in the one side that is close to the guide pulley subassembly, it fixes between first guide pulley and second guide pulley to cut quiet sword, cut and move the sword and cut quiet sword and set up relatively, the steel band of transmission moves the sword and cuts to pass in the clearance between the quiet sword by shearing in the guide pulley subassembly.

According to the technical scheme provided by the embodiment of the application, the blanking loop comprises a plurality of storage devices, and each storage device is used for winding and storing a single packing steel belt; each set of storage device works independently and in parallel.

According to the technical scheme provided by the embodiment of the application, each storage device comprises a storage base, a pair of vertically arranged guide cylinders is oppositely arranged on the storage base, and one end of each guide cylinder is detachably fixed on the storage base; an upper pulley assembly is arranged at one end, far away from the material storage base, between the pair of guide cylinders, a lower pulley assembly is arranged between the upper pulley assembly and the material storage base, and two ends of the lower pulley assembly are respectively clamped on the guide cylinders in a sliding manner;

the upper pulley component comprises a first main shaft and a pair of first bearings, the pair of first bearings are respectively fixed on the pair of guide cylinders, and two ends of the first main shaft are respectively and rotatably connected to the pair of first bearings; the first main shaft is rotatably sleeved with a first set number of upper winding single pulleys, and the adjacent upper winding single pulleys are mutually and independently arranged;

the lower pulley assembly comprises a second main shaft and a pair of guide wheel mechanisms, two ends of the second main shaft are respectively connected to the pair of guide wheel mechanisms, and the guide wheel mechanisms can be clamped on corresponding guide cylinders in a sliding manner; the second main shaft is rotatably sleeved with a first set number of lower winding single pulleys, the adjacent lower winding single pulleys are mutually and independently arranged, and the lower winding single pulleys and the upper winding single pulleys are arranged in a one-to-one correspondence manner;

the material storage base comprises a pair of first guide rails, and the end parts of the guide cylinders are fixed between the pair of first guide rails through first positioning plates after penetrating through gaps between the pair of first guide rails.

According to the technical scheme provided by the embodiment of the application, the middle part of the first positioning plate is provided with a first through hole, and the end part of the guide cylinder penetrates through the first through hole from top to bottom and then extends into a gap between the pair of first guide rails; two sides of the first positioning plate are respectively fixed on the surfaces of the pair of first guide rails through a pair of first bolts.

In a second aspect, the application provides a method for producing a hot-dip galvanized steel strip, which comprises the following steps:

uncoiling and flattening the coiled steel strip with the first width through an uncoiler;

carrying out butt welding splicing on each uncoiled steel strip with the first width along the length direction by a butt welding machine;

establishing the front tension of the feeding loop on the butt-welded and spliced steel belt with the first width;

feeding, buffering and storing the steel strip with the first width, which establishes the tension before the feeding loop, through the feeding loop;

establishing the back tension of the feeding loop by the steel belt with the first width output by the feeding loop through a second tension device;

cutting the steel strip with the first width and establishing the tension after the feeding loop into a plurality of parallel steel strips with the second width through a slitting machine, wherein the second width is set to be smaller than the first width;

trimming and polishing each steel belt with the second width through a trimmer;

establishing the front tension of the heat treatment furnace by each trimmed steel strip with the second width through a third tension device;

simultaneously carrying out heat treatment on each steel strip with the second width and establishing the tension in front of the heat treatment furnace through the heat treatment furnace;

hot galvanizing is carried out on each steel strip with the second width through a hot-melting zinc pot at the same time after heat treatment, so that hot galvanizing treatment is carried out on each surface of each steel strip with the second width;

simultaneously carrying out air cooling treatment on each steel strip with the second width after hot galvanizing by an air cooling device;

simultaneously carrying out water cooling treatment on each steel belt with the second width after air cooling treatment by a water cooling device;

establishing the tension of each steel strip with the second width after water cooling treatment after the heat treatment furnace through a fourth tension device;

simultaneously waxing each steel strip with the second width and establishing the tension after the heat treatment furnace by using a roller coater;

drying each steel belt with the second width after being waxed by a drying and solidifying machine;

winding, buffering and storing the dried steel strips with the second width through a discharging loop;

establishing front tension of the recoiling machine by each steel belt with the second width after storing through a corresponding fifth independent tension device;

and simultaneously winding the steel strips with the second width establishing the front tension of the recoiling machine into a disc through the corresponding recoiling machine.

In a third aspect, the present application provides a hot-dip galvanized steel strip, where the width of the steel strip is the second width, and each surface of the steel strip is plated with a zinc layer.

The invention has the beneficial effects that: the application provides a hot-dip galvanizing packing steel strip production facility, a production method and a hot-dip galvanizing packing steel strip, the steel strip of a first width is fed to a feeding loop and then is cut by a slitting machine to form a plurality of steel strips of a second width, the steel strips of each second width are simultaneously subjected to a heat treatment furnace and then simultaneously enter a hot-melt zinc pot for hot-dip galvanizing treatment, so that each surface of each steel strip of each second width is galvanized, the problem that the cutting surface of the packing steel strip is not galvanized in the prior art is avoided, and each surface of the packing steel strip is galvanized so as to better meet the corrosion resistance requirement when the packing steel strip is used.

Drawings

FIG. 1 is a schematic diagram of a first embodiment of the present application;

FIG. 2 is a schematic structural view of the hot-melt zinc pot of FIG. 1;

FIG. 3 is a schematic structural view of the blanking loop in FIG. 1;

FIG. 4 is a schematic structural view of a single-sleeve storage device in a blanking loop according to a first embodiment of the present application;

FIG. 5 is a schematic view of the guiding device of the coiler according to the first embodiment of the present application;

FIG. 6 is a schematic side view of the guide mechanism of FIG. 5;

FIG. 7 is a schematic front view of the guide sub-plate of FIG. 6 with the guide sub-plate removed;

FIG. 8 is a schematic front view of a coiler in a first embodiment of the present application;

FIG. 9 is a flow chart of a second embodiment of the present application;

FIG. 10 is a cross-sectional view of a third embodiment of a strip of the wrapped steel of the present application;

the text labels in the figures are represented as: 1. an uncoiler; 2. a butt welding machine; 3. a first tension device; 4. feeding loop; 5. a second tension device; 6. slitting machine; 7. an edge trimmer; 8. a third tension device; 9. a heat treatment furnace; 10. a hot melting zinc pot; 11. an air cooling device; 12. a water cooling device; 13. a fourth tension device; 14. a roller coater; 15. drying and solidifying machine; 16. blanking loop; 17. a fifth independent tension device; 18. a coiler; 19. a first base; 20. a first linear guide rail; 21. a first horizontal drive mechanism; 22. a guide wheel assembly; 23. a shear knife assembly; 24. a shear drive assembly; 25. a first guide wheel; 26. a second guide wheel; 27. a third guide wheel; 28. a first vertical drive hydraulic cylinder; 29. shearing a sliding block; 30. a curved slideway; 31. a cam; 32. shearing the movable knife; 33. shearing a static cutter; 34. a guide main board; 35. a guide sub-plate; 36. a first rib; 37. connecting blocks; 38. a shearing seat; 39. a guide block; 40. a fixed base; 41. a servo motor; 42. a first speed reducer; 43. a ball screw; 44. a lead screw nut; 45. a floating base; 46. a push-pull block; 47. a second linear guide; 48. a take-up motor; 49. a second speed reducer; 50. a winding section; 51. a material storage base; 52. a guide cylinder; 53. a first main shaft; 54. a first bearing; 55. winding a single pulley; 56. a second main shaft; 57. a single pulley is wound at the lower part; 58. a first positioning plate; 59. a first bolt; 60. a zinc layer; 61. a guide frame; 62. a guide pulley.

Detailed Description

In order that those skilled in the art will better understand the technical solutions of the present invention, the following detailed description of the present invention is provided in conjunction with the accompanying drawings, and the description of the present section is only exemplary and explanatory, and should not be construed as limiting the scope of the present invention in any way.

As shown in fig. 1 to 8, the hot-melting zinc pot comprises an uncoiler 1, a butt welder 2, a first tension device 3, a feeding loop 4, a second tension device 5, a slitting machine 6, an edge trimmer 7, a third tension device 8, a heat treatment furnace 9, a hot-melting zinc pot 10, an air cooling device 11, a water cooling device 12, a fourth tension device 13, a roller coater 14, a drying and solidifying machine 15, a blanking loop 16, a fifth independent tension device 17 and a coiler 18 which are arranged in sequence. In this embodiment, the respective apparatus portions are sequentially arranged in the order of the sequential processes according to the treatment process of the steel strip.

The uncoiler 1 is used for uncoiling and flattening coiled steel strips with first widths. In this embodiment, the steel strip with the first width is a medium-width steel strip, the medium-width steel strip is stored in a coiled disc-shaped structure, and an uncoiler 1 is required to uncoil the coiled steel strip before the hot galvanizing operation is performed on the steel strip.

The butt welding machine 2 is used for welding the end parts of the adjacent steel strips together, and splicing of the adjacent steel strips in the length direction is achieved, so that the working continuity of the steel strips is improved, and the processing working efficiency is improved.

The slitting machine 6 is used for cutting the steel strip with the first width into a plurality of parallel steel strips with the second width, and the second width is smaller than the first width. In this embodiment, the slitting machine 6 longitudinally cuts the middle-width steel strip which is spliced in the longitudinal direction, and cuts the middle-width steel strip in the transverse direction, that is, in the width direction, so that the steel strip with the width equal to the middle width is cut into a plurality of parallel narrow steel strips, thereby the width requirement of the packing steel strip is met, and the width of the specific packing steel strip is specifically set according to actual requirements.

The heat treatment furnace 9 is used for heat treatment of each steel strip of the second width. In this embodiment, the plurality of thin steel strips of the second width cut by the slitting machine 6 are simultaneously fed in parallel into the heat treatment furnace 9 to perform the heat treatment process. In this embodiment, the furnace body adopts the improved sendzimir method: the furnace body consists of a preheating and micro-oxidation direct-burning section, a reduction section and a cooling section. The furnace bodies of all the sections are connected by a passage with a smaller section, so that the preheating and micro-oxidation direct-burning section, the reduction section and the cooling section are connected into a whole. The steel strip is in the micro-oxidation direct-burning section, the temperature of the steel strip is rapidly increased through the flame which is directly contacted with burning, and rolling oil remained on the surface of the steel strip is burnt, so that the surface purification effect is achieved; in the reduction section, the protective gas containing 75% of H and 25% of N generated by decomposing ammonia reduces the iron scale on the surface of the strip steel into sponge pure iron, and the sponge pure iron is indirectly heated by radiation through a radiation tube to finish recrystallization annealing or incomplete annealing so that the strip steel achieves the required mechanical performance; and then the strip steel is controlled to be about 480 ℃ through a cooling section, and directly enters a hot-melting zinc pot 10 for hot galvanizing under the condition of not contacting with air.

As shown in fig. 2, the hot-dip galvanizing pot 10 is used for performing hot-dip galvanizing treatment on each surface of each steel strip with the second width, and the thin steel strips with the second width after heat treatment enter the hot-dip galvanizing pot 10 in parallel for performing hot-dip galvanizing treatment, so that a process of simultaneously performing hot-dip galvanizing on a plurality of thin steel strips is realized, and the hot-dip galvanizing work efficiency of the packaged steel strips is improved.

As shown in fig. 3, the blanking loop 16 is used for winding and storing each steel strip with the second width. Preferably, the blanking loop 16 comprises a plurality of storage devices, and each storage device is used for winding and storing a single steel strip with a second width; each set of storage device works independently and in parallel. In the preferred embodiment, a plurality of storage devices are arranged in the blanking loop 16, and each storage device is used for storing a single narrow steel strip, so that the plurality of storage devices can simultaneously wind and store a plurality of narrow steel strips in parallel. In the embodiment, the narrow steel strips are stored in parallel and simultaneously, so that the working efficiency can be improved, and the working requirements of the parallel storage after the parallel hot galvanizing of the narrow steel strips are met.

The coiler 18 is adapted to coil each strip of the second width into a coil. The recoiling machine 18 is used for coiling each steel strip with the second width into a coil, and in this embodiment, in order to realize simultaneous coiling of each narrow steel strip, the number of the recoiling machines 18 is the same as the number of the storage devices arranged in the blanking loop 16, so as to satisfy parallel coiling after storing each storage device in the blanking loop 16.

In a preferred embodiment, as shown in fig. 4, each set of the magazine includes a magazine base 51, a pair of vertically arranged guide cylinders 52 is oppositely arranged on the magazine base 51, and one end of each guide cylinder 52 is detachably fixed on the magazine base 51; an upper pulley assembly is arranged at one end, far away from the storage base 51, between the pair of guide cylinders 52, a lower pulley assembly is arranged between the upper pulley assembly and the storage base 51, and two ends of the lower pulley assembly are respectively connected to the guide cylinders 52 in a sliding manner.

In the present preferred embodiment, the upper pulley assembly is connected between the pair of guide cylinders 52 and to the top ends of the pair of guide cylinders 52, the bottom ends of the pair of guide cylinders 52 are connected to the magazine base 51, respectively, and the lower pulley assembly is connected between the pair of guide cylinders 52 and slidably connected between the upper pulley assembly and the magazine base 51.

The upper pulley assembly comprises a first main shaft 53 and a pair of first bearings 54, the pair of first bearings 54 are respectively fixed on the pair of guide cylinders 52, and two ends of the first main shaft 53 are respectively rotatably connected on the pair of first bearings 54; the first main shaft 53 is rotatably sleeved with a first set number of upper winding single pulleys 55, and the adjacent upper winding single pulleys 55 are independently arranged.

In the preferred embodiment, a pair of bearings are respectively fixed on a pair of guiding cylinders 52, two ends of a first main shaft 53 are respectively rotatably clamped on a pair of first bearings 54, and the first main shaft 53 is rotatably connected between the pair of guiding cylinders 52, so that steel strips can be wound and stored. In the present embodiment, the first main shaft 53 is provided with the upper winding single pulleys 55 of the first set number rotatably, and the provision of the plurality of upper winding single pulleys 55 can increase the winding amount of the steel belt on the first main shaft 53. In the present embodiment, the outermost upper-winding single pulley 55 on one side of each upper-winding single pulley 55 abuts on the shoulder of the first main shaft 53, and the outermost upper-winding single pulley 55 on the other side is fixed to the first main shaft 53 by a lock washer and a round nut, thereby fixing each upper-winding single pulley 55 to the first main shaft 53.

The lower pulley assembly comprises a second main shaft 56 and a pair of guide wheel mechanisms, two ends of the second main shaft 56 are respectively connected to the pair of guide wheel mechanisms, and the guide wheel mechanisms can be clamped on the corresponding guide cylinders 52 in a sliding manner; the second main shaft 56 is rotatably sleeved with a first set number of lower winding single pulleys 57, the adjacent lower winding single pulleys 57 are independently arranged, and the lower winding single pulleys 57 and the upper winding single pulleys 55 are arranged in a one-to-one correspondence manner.

In the preferred embodiment, the outermost lower-winding single pulley 57 on one side of each lower-winding single pulley 57 abuts on a shoulder of the second main shaft 56, and the outermost lower-winding single pulley 57 on the other side is fixed to the second main shaft 56 by a lock washer and a round nut, thereby fixing each lower-winding single pulley 57 to the second main shaft 56.

In the preferred embodiment, the second main shaft 56 is rotatably connected at both ends to a pair of guide roller mechanisms, and the pair of guide roller mechanisms are slidably moved along the guide cylinders 52 to adjust the interval between the upper and lower pulley assemblies, that is, the length of the steel strip wound between the upper and lower pulley assemblies. In this embodiment, the second main shaft 56 is provided with a first set number of lower winding single pulleys 57 which are rotatable, the number of the upper winding single pulleys 55 and the number of the lower winding single pulleys 57 in this embodiment are the same, and the upper winding single pulleys 55 and the lower winding single pulleys 57 are provided in a one-to-one correspondence pair. The pulley component and the lower pulley component comprise three single pulleys as an example, the upper pulley component comprises a first upper winding single pulley 55, a second upper winding single pulley 55 and a third upper winding single pulley 55 respectively, the lower pulley component comprises a first lower winding single pulley 57, a second lower winding single pulley 57 and a third lower winding single pulley 57 respectively, a steel belt is firstly wound on the first upper winding single pulley 55 during the storage steel belt, and then is sequentially wound on the first lower winding single pulley 57, the second upper winding single pulley 55, the second lower winding single pulley 57, the third upper winding single pulley 55 and the third lower winding single pulley 57, so that the winding storage process of the steel belt on the storage device is completed. Preferably, the width of the winding groove on each of the upper and lower winding pulleys 55 and 57 is the same as the width of the steel strip, so as to play a role in limiting the winding of the steel strip and ensure the regularity of the winding of the steel strip.

In a preferred embodiment, the magazine 51 includes a pair of first rails, and the ends of the guide cylinders 52 are fixed between the pair of first rails by first positioning plates 58 after passing through the gaps between the pair of first rails.

In the preferred embodiment, a certain gap is provided between the pair of first guide rails, the guide cylinder 52 can be inserted into the gap between the pair of first guide rails, and the first positioning plate 58 connected by the guide cylinder 52 fixes both sides of the first positioning plate 58 to the surfaces of the pair of first guide rails, respectively, thereby fixing the guide cylinder 52 and the pair of first guide rails. In the preferred embodiment, since the first guide rail is provided with a certain length, the pair of guide cylinders 52 can be adjusted in the gap with a certain extending length, and the distance between the pair of guide cylinders 52 can be adjusted by fixing the guide cylinders 52 at different positions on the first guide rail, thereby being adapted to the adjustment of the number of the single pulleys in the upper pulley assembly and the lower pulley assembly.

Preferably, a first through hole is formed in the middle of the first positioning plate 58, and the end of the guide cylinder 52 passes through the first through hole from top to bottom and then extends into a gap between the pair of first guide rails; both sides of the first positioning plate 58 are fixed to the surfaces of the pair of first guide rails by a pair of first bolts 59, respectively.

In the preferred embodiment, the end of the guide cylinder 52 passes through the first through hole in the middle of the first positioning plate 58 and then passes downward through the gap between the pair of first guide rails, and the first positioning plate 58 is fixed to the pair of first guide rails by the first bolts 59 disposed on both sides of the first positioning plate 58, so that one end of the guide cylinder 52 is fixed.

In a preferred embodiment, the guide wheel mechanism comprises a pair of guide frames 61, and both ends of the second main shaft 56 are rotatably clamped on the pair of guide frames 61 through second bearings respectively; a pair of guide pulleys 62 is symmetrically arranged on the guide frame 61 corresponding to two sides of the second bearing, and the guide pulleys 62 can be clamped with the guide cylinder 52 in a sliding manner.

In the preferred embodiment, the second main shaft 56 is rotatably connected to the guide frame 61 through second bearings connected at both ends, a pair of guide pulleys 62 are provided at both sides of the guide frame 61, and the guide pulleys 62 can slide along the guide cylinders 52, so that the second main shaft 56 and each of the lower winding single pulleys 57 connected to the second main shaft 56 move up and down along the guide cylinders 52.

In a preferred embodiment, the reeling machine 18 includes at least one set of guiding devices, as shown in fig. 5 to 7, including a first base 19, a first linear guide 20, a first horizontal driving mechanism 21 and a guiding mechanism are disposed on the first base 19, the guiding mechanism is clamped in the first linear guide 20, and the first horizontal driving mechanism 21 drives the guiding mechanism to move along the first linear guide 20; the guide mechanism comprises a guide wheel assembly 22, a shearing knife assembly 23 and a shearing driving assembly 24, wherein the shearing knife assembly 23 is arranged on one side of the guide wheel assembly 22, and the shearing driving assembly 24 drives the shearing knife assembly 23 to move towards the direction close to the guide wheel assembly 22 or away from the guide wheel assembly 22.

In this embodiment, the first horizontal driving mechanism 21 is configured as a hydraulic cylinder driving structure, and in other embodiments, the first horizontal driving mechanism 21 may also be configured as another driving structure capable of driving the guiding mechanism to move horizontally. The first horizontal drive mechanism 21 is used to adjust the horizontal position of the guide mechanism so that the guide mechanism is adjusted at an appropriate position from the subsequent coiler 18.

In a preferred embodiment, the guide wheel assembly 22 comprises a first guide wheel 25, a second guide wheel 26 and a third guide wheel 27 which are arranged in sequence according to the conveying direction of the packed steel strip; the shear knife assembly 23 is disposed between the corresponding first guide wheel 25 and the corresponding second guide wheel 26 or between the corresponding second guide wheel 26 and the corresponding third guide wheel 27. In this embodiment, the shearing knife assembly 23 is used for cutting the packed steel strip transmitted in the guide wheel assembly 22, and when the coiler 18 reaches the winding length or weight of the packed steel strip, the shearing knife assembly 23 cuts the packed steel strip transmitted in the guide device.

Preferably, the diameter of the first guide wheel 25 is larger than the diameters of the second guide wheel 26 and the third guide wheel 27. The first guide wheel 25 and the third guide wheel 27 are grooved wheels, and the second guide wheel 26 is a flat wheel.

In the preferred embodiment, the sheave with a larger diameter is adopted as the first guide wheel 25, so that the bending deformation of the packing steel belt is not caused when the sheave is initially contacted with the packing steel belt for guiding, and the initial guiding of the packing steel belt is completed; the second guide wheel 26 adopts a flat wheel, so that the packed steel strip can form an S shape with smaller bending degree, and the transmission of the packed steel strip can be stabilized; the third guide wheel 27 is closest to the coiler 18, so that the packed steel strip can be accurately guided by the grooved wheel with a smaller diameter.

In a preferred embodiment, the shearing driving assembly 24 comprises a first vertical driving hydraulic cylinder 28, a shearing slider 29 is connected to the piston end of the first vertical driving hydraulic cylinder 28, and a curved slideway 30 with a set shape is arranged on the shearing slider 29 and extends along the moving direction of the piston end of the first vertical driving hydraulic cylinder 28; the shearing knife assembly 23 comprises a cam 31 and a shearing part, the cam 31 is clamped in the curve slideway 30, and the first vertical driving hydraulic cylinder 28 drives the shearing part to move horizontally through the cam 31 clamped in the curve slideway 30.

In the preferred embodiment, the first vertical driving hydraulic cylinder 28 drives the shearing slide block 29 to move up and down in the vertical space, so that the cam 31 clamped in the curved slide way 30 on the shearing slide block 29 moves to different curved sections in the curved slide way 30, and the cam 31 moves in the horizontal direction, thereby realizing the horizontal movement of the shearing part and the shearing and cutting process of the packed steel strip.

In a preferred embodiment, the cutting portion includes a movable cutting blade 32 and a stationary cutting blade 33, the movable cutting blade 32 and the cam 31 are fixedly connected to one side close to the guide wheel assembly 22, the stationary cutting blade 33 is fixed between the first guide wheel 25 and the second guide wheel 26, the movable cutting blade 32 and the stationary cutting blade 33 are arranged opposite to each other, and the packaging steel belt conveyed in the guide wheel assembly 22 passes through a gap between the movable cutting blade 32 and the stationary cutting blade 33.

In the preferred embodiment, the shearing portion shears the steel strap as the steel strap is conveyed between the first guide wheel 25 and the second guide wheel 26, and in other embodiments, the shearing portion may be disposed at a position corresponding to a position between the second guide wheel 26 and the third guide wheel 27. In the embodiment, the fixed shearing knife 33 is fixed, the movable shearing knife 32 connected to the cam 31 is driven to move horizontally in the process of driving the shearing slider 29 to move up and down through the first vertical driving hydraulic cylinder 28, and when the steel strip to be packaged is required to be sheared, the first vertical driving hydraulic cylinder 28 drives the shearing slider 29 to move down to move the movable shearing knife 32 to a direction close to the fixed shearing knife 33, so that the steel strip to be packaged transmitted between the movable shearing knife 32 and the fixed shearing knife 33 is extruded and sheared; after the steel belt is cut, the first vertical driving hydraulic cylinder 28 drives the cutting slide block 29 to move upwards to move the cutting movable knife 32 away from the cutting static knife 33, so that the steel belt is normally conveyed on each guide wheel of the guide wheel assembly 22.

In a preferred embodiment, the guiding mechanism further comprises a fixing assembly, the fixing assembly comprises a main guiding plate 34 and a secondary guiding plate 35, a first protruding strip 36 is arranged on the main guiding plate 34, and the first protruding strip 36 is slidably clamped in the first linear guide 20; the guide auxiliary plate 35 is arranged opposite to the guide main plate 34 and is fixedly connected with the guide main plate 34 through a connecting block 37; the surface of the guide main plate 34 close to the guide auxiliary plate 35 is provided with a shearing seat 38, and the shearing slide block 29 can be clamped on the shearing seat 38 in a sliding manner; the two sides of the shearing static knife 33 are respectively fixed on the guide main plate 34 and the guide auxiliary plate 35.

In this preferred embodiment, the guiding mechanism is fixed on the first base 19 through the guiding main board 34, the guiding main board 34 is provided with a first protruding strip 36 corresponding to the first base 19, the first protruding strip 36 is connected to the first base 19 in a sliding manner by being clamped with the first linear guide rail 20 on the first base 19, and the whole sliding of the guiding mechanism is realized by the sliding of the guiding main board 34 on the first base 19. In the preferred embodiment, the cutting base 38 is fixed on the guide main plate 34 between the guide main plate 34 and the guide auxiliary plate 35, a T-shaped groove is formed in the cutting base 38, and the cutting slider 29 is slidably clamped on the cutting base 38, so that the cutting slider 29 moves along the cutting base 38 when the first vertical driving hydraulic cylinder 28 drives the cutting slider 29 to vertically lift, that is, the cutting base 38 guides the cutting slider 29, and therefore, the moving process of the cutting slider 29 is more stable.

In a preferred embodiment, the curvature of the curved slideway 30 is set according to a set rule, so that the moving speed of the movable shearing blade 32 is gradually reduced during the moving process of the movable shearing blade 32 towards the direction close to the static shearing blade 33.

In the preferred embodiment, the curved chute 30 is shaped such that the horizontal distance from the end of the curved chute 30 close to the first vertical driving hydraulic cylinder 28 to the static shearing blade 33 is smaller than the horizontal distance from the end of the curved chute 30 far from the first vertical driving hydraulic cylinder 28 to the static shearing blade 33, i.e. the curved chute 30 extends and bends from the bottom end to the top end in the direction close to the static shearing blade 33. In the process that the first vertical driving hydraulic cylinder 28 drives the shearing slide block 29 to move downwards, the cam 31 moves from the bottom end to the top end of the curved slide way 30 in the curved slide way 30, and the process that the shearing movable knife 32 gradually approaches the shearing static knife 33 is achieved. In addition, the curvature of the curved slideway 30 is set to be gradually reduced from the bottom end to the top end, that is, in the process that the movable shearing blade 32 moves towards the static shearing blade 33, the curvature of the bottom end of the curved slideway 30 where the cam 31 is initially located is larger, and the curvature of the top end of the curved slideway 30 where the cam 31 is finally located is smaller, so that the moving speed is gradually reduced in the process that the movable shearing blade 32 moves towards the static shearing blade 33.

In a preferred embodiment, a guide block 39 corresponding to the shearing movable blade 32 is arranged between the guide main plate 34 and the guide auxiliary plate 35, a guide square groove is arranged on the guide block 39, and the shearing movable blade 32 can be slidably clamped in the guide square groove.

In the preferred embodiment, the shearing movable knife 32 is clamped in the guide square groove of the guide block 39, so that the shearing movable knife 32 moves along the guide square groove in the moving process, the guide block 39 provides horizontal guide for the shearing movable knife 32 in the moving process, and the stability of the horizontal movement of the shearing movable knife 32 and the accurate positioning shearing of the shearing static knife 33 are ensured.

As shown in fig. 8, includes: at least one group of guiding devices, a coiling mechanism 18 and a floating driving mechanism; the guide device is provided on one side of the winding mechanism 18, and the guide device transfers the packed steel strip being transferred to the winding mechanism 18. In this embodiment, the guiding device guides and transmits the packed steel strip to be coiled to the coiling mechanism 18, the coiling mechanism 18 winds and coils the packed steel strip, and the floating driving mechanism is used for moving the coiling mechanism 18 back and forth in the horizontal direction, so that the coiling mechanism 18 winds and coils the packed steel strip back and forth.

Preferably, the coiler 18 comprises two sets of guiding devices, each set of said guiding devices being individually controlled. In the preferred embodiment, two sets of guides may share a common base, each guide being moved by its guide mechanism driven by its respective first horizontal drive mechanism 21.

The floating driving mechanism comprises a fixed base 40, a servo motor 41 is arranged on the fixed base 40, the movable end of the servo motor 41 is connected to a ball screw 43 through a first speed reducer 42, and a screw nut 44 is sleeved on the ball screw 43 in a threaded manner;

the coiling mechanism 18 comprises a floating base 45, the floating base 45 is fixedly connected with a screw nut 44 through a push-pull block 46, a second linear guide rail 47 is arranged on the fixed base 40 corresponding to the floating base 45, and the floating base 45 can be clamped in the second linear guide rail 47 in a sliding manner;

a coiling motor 48 is arranged on the floating base 45, and the movable end of the coiling motor 48 is connected to a coiling part 50 through a second speed reducer 49; each set of the guide means is provided corresponding to the winding part 50.

In the preferred embodiment, the fixed base 40 is fixed to a work site, the piston end of the servo motor 41 is connected to the first speed reducer 42, the first speed reducer 42 in the preferred embodiment is a speed reducer dedicated to the servo motor 41, the output end of the first speed reducer 42 is connected to the end of the ball screw 43, the servo motor 41 drives the ball screw 43 to rotate, the screw nut 44 screwed to the ball screw 43 is driven to move forward and backward in the horizontal direction, and the floating base 45 connected to the screw nut 44 is driven to move forward and backward in the horizontal direction. In the preferred embodiment, the structure and function of the winding part 50 are well-established in the prior art, and will not be described herein.

In this preferred mode, be equipped with spacing direction recess in the push-and-pull piece 46, floating mount 45 can slide through the connecting portion of joint in spacing direction recess and push-and-pull piece 46 and be connected for screw nut 44 horizontal migration in-process drives floating mount 45 synchronous motion through push-and-pull piece 46, and push-and-pull piece 46 plays the spacing effect of horizontal single degree of freedom to floating mount 45 simultaneously, guarantees the removal precision at the bottom of floating, thereby makes recoiling 18 mechanism normally to batch the work.

In the preferred embodiment, the floating base 45 is provided with a winding motor 48, the piston end of the winding motor 48 is connected to a second speed reducer 49, and the piston end of the second speed reducer 49 is connected to a winding shaft of the winding part 50, that is, the winding motor 48 drives the winding part 50 to rotate, so that the winding part 50 winds the steel strip in a normal manner. In the present embodiment, when the servo motor 41 does not operate, the winding mechanism 18 performs normal single-type strap winding operation; when the servo motor 41 works, the floating base 45 moves horizontally on the fixed base 40, so that the coiler 18 coils the steel strip in a front-back compound winding manner, the coiling length of the single-coil steel strip is increased, and the coiling efficiency is improved.

In the preferred embodiment, the number of the groups of the guiding devices is consistent with the number of the steel strips coiled at the same time, namely, when the guiding devices are arranged in one group, a single steel strip is conveyed to the coiling mechanism 18 each time, so that the coiling mechanism 18 coils a single steel strip each time; when two sets of guides are provided, two strips are transferred simultaneously to the coiler 18 at a time, so that the coiler 18 simultaneously coils two coils at a time, and so on for the other sets. Taking the arrangement of two sets of guiding devices as an example, when the servo motor 41 does not work, the winding mechanism 18 winds the steel strip with two normal single-type bands simultaneously; when the servo motor 41 is operated, the winding mechanism 18 winds the steel strip around two coils of the double-wound type band simultaneously, thereby improving the winding length and the winding efficiency.

Fig. 9 shows a second embodiment of the present application, which includes the following steps:

and S1, uncoiling and flattening the coiled steel strip with the first width through an uncoiler 1.

And S2, carrying out butt welding and splicing on each uncoiled steel strip with the first width by the butt welding machine 2 along the length direction.

And S3, passing the butt-welded and spliced steel strip with the first width through a tension before the feeding loop 4 is built.

S4, the steel strip of the first width establishing the tension before the feeding loop 4 is fed through the feeding loop 4 for buffer storage.

And S5, passing the steel strip with the first width output by the feeding loop 4 through a second tension device 5 to establish the back tension of the feeding loop 4.

S6, the steel strip of the first width, which establishes the tension after the feeding loop 4, is cut into a plurality of parallel steel strips of the second width, which is set to be smaller than the first width, by the slitting machine 6.

And S7, trimming and grinding each steel belt with the second width through the edge trimmer 7.

And S8, establishing the tension of the trimmed steel strips with the second width in front of the heat treatment furnace 9 through a third tension device 8.

S9, passing the steel strip of the second width, which establishes the tension before the heat treatment furnace 9, through the heat treatment furnace 9 while performing the heat treatment of the steel strip.

And S10, simultaneously hot galvanizing the heat-treated steel strips with the second width through the hot-melting zinc pot 10, so that each surface of each steel strip with the second width is subjected to hot galvanizing treatment.

And S11, simultaneously performing air cooling treatment on the hot-galvanized steel strips with the second width by the air cooling device 11.

And S12, simultaneously carrying out water cooling treatment on the steel strips with the second width after the air cooling treatment by the water cooling device 12.

And S13, passing each steel strip with the second width after water cooling treatment through a fourth tension device 13 to establish the tension after the heat treatment furnace 9.

S14, the respective steel strips of the second width, which establish the tension after the heat treatment furnace 9, are simultaneously subjected to the waxing process by the roll coater 14.

And S15, passing each waxed steel strip with the second width through a drying and solidifying machine 15 to be dried simultaneously.

And S16, simultaneously winding, buffering and storing each dried steel belt with the second width through the blanking loop 16.

And S17, establishing the front tension of the coiling machine 18 by passing each steel strip with the second width after being stored through the corresponding fifth independent tension device 17.

S18, the steel strips of the second width establishing the tension before the coilers 18 are simultaneously wound into a coil by the corresponding coilers 18.

Referring to fig. 10, which is a schematic structural view of a third embodiment of the present invention, the steel strip having a second width is produced by the method according to the second embodiment, and each surface of the steel strip is plated with a zinc layer 60.

The principles and embodiments of the present application are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present application, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments, or may be learned by practice of the invention.

Claims

1. The hot galvanizing packaging steel strip production equipment is characterized by comprising an uncoiler, a butt welder, a first tension device, a feeding loop, a second tension device, a longitudinal shearing and slitting machine, an edge trimmer, a third tension device, a heat treatment furnace, a hot melting zinc pot, an air cooling device, a water cooling device, a fourth tension device, a roller coater, a drying and curing machine, a blanking loop, a fifth independent tension device and a coiler which are sequentially arranged;

the uncoiler is used for uncoiling and flattening the coiled steel strip with the first width; the butt welding machine is used for welding the end parts of the adjacent steel strips together; the longitudinal shearing slitting machine is used for cutting the steel belt with the first width into a plurality of parallel steel belts with a second width, and the second width is smaller than the first width; the heat treatment furnace is used for carrying out heat treatment on each steel strip with the second width; the hot-melting zinc pot is used for carrying out hot galvanizing treatment on each surface of each steel strip with the second width; the blanking loop is used for winding and storing each steel belt with the second width; the coiling machine is used for coiling each steel strip with the second width into a plate.

2. The hot dip galvanizing packaging steel strip production equipment according to claim 1, wherein the coiling machine comprises at least one group of guide devices, each guide device comprises a first base, a first linear guide rail, a first horizontal driving mechanism and a guide mechanism are arranged on each first base, the guide mechanisms are clamped in the first linear guide rails, and the first horizontal driving mechanism drives the guide mechanisms to move along the first linear guide rails;

the guiding mechanism comprises a guide wheel assembly, a shearing cutter assembly and a shearing driving assembly, the shearing cutter assembly is arranged on one side of the guide wheel assembly, and the shearing driving assembly drives the shearing cutter assembly to move towards the direction close to the guide wheel assembly or far away from the guide wheel assembly.

3. The hot dip galvanizing packaging steel strip production equipment according to claim 2, wherein the guide wheel assembly comprises a first guide wheel, a second guide wheel and a third guide wheel which are sequentially arranged according to the conveying direction of the packaging steel strip; the shearing knife assembly is arranged between the corresponding first guide wheel and the corresponding second guide wheel or between the corresponding second guide wheel and the corresponding third guide wheel.

4. The hot dip galvanizing baling steel strip production facility of claim 3, wherein the shear drive assembly comprises a first vertical drive hydraulic cylinder, a shear slide block is connected to a piston end of the first vertical drive hydraulic cylinder, and a curved slide way with a set shape is provided on the shear slide block and extends along a moving direction of the piston end of the first vertical drive hydraulic cylinder;

the shearing knife assembly comprises a cam and a shearing portion, the cam is connected in a clamping manner in the curve slideway, and the first vertical driving hydraulic cylinder drives the shearing portion to move horizontally through the cam connected in the curve slideway in a clamping manner.

5. The hot dip galvanizing packaging steel strip production equipment according to claim 4, wherein the shearing portion comprises a shearing movable knife and a shearing static knife, the shearing movable knife and the cam are fixedly connected to one side close to the guide wheel assembly, the shearing static knife is fixed between the first guide wheel and the second guide wheel, the shearing movable knife and the shearing static knife are arranged oppositely, and the steel strip transmitted in the guide wheel assembly passes through a gap between the shearing movable knife and the shearing static knife.

6. The hot dip galvanizing packaging steel strip production equipment according to claim 1, wherein the blanking loop comprises a plurality of storage devices, and each storage device is used for winding and storing a single packaging steel strip; each set of storage device works independently and in parallel.

7. The hot dip galvanizing packaging steel strip production equipment according to claim 6, wherein each storage device comprises a storage base, a pair of vertically arranged guide cylinders are oppositely arranged on the storage base, and one end of each guide cylinder is detachably fixed on the storage base; an upper pulley assembly is arranged at one end, far away from the material storage base, between the pair of guide cylinders, a lower pulley assembly is arranged between the upper pulley assembly and the material storage base, and two ends of the lower pulley assembly are respectively clamped on the guide cylinders in a sliding manner;

8. The hot dip galvanized steel strip packing production equipment according to claim 7, wherein a first through hole is formed in the middle of the first positioning plate, and the end of the guide cylinder penetrates through the first through hole from top to bottom and then extends into a gap between the pair of first guide rails; two sides of the first positioning plate are respectively fixed on the surfaces of the pair of first guide rails through a pair of first bolts.

9. The production method of the hot dip galvanized steel strip packed by using the production equipment as set forth in any one of claims 1 to 8, characterized by comprising the steps of:

trimming and polishing each steel belt with the second width through a trimmer;

10. A hot-dip galvanized coated steel strip produced by the production method according to claim 9, wherein the width of the coated steel strip is the second width, and each surface of the coated steel strip is coated with a zinc layer.