CN109093968B

CN109093968B - Steel coil peripheral guard plate production line

Info

Publication number: CN109093968B
Application number: CN201810794689.8A
Authority: CN
Inventors: 韩利芳; 戴轶咏
Original assignee: Hangang Affiliated Co
Current assignee: Hangang Affiliated Co
Priority date: 2018-07-19
Filing date: 2018-07-19
Publication date: 2021-04-23
Anticipated expiration: 2038-07-19
Also published as: CN109093968A

Abstract

The invention belongs to the technical field of production of a peripheral protection plate, and provides a production line of a steel coil peripheral protection plate, which comprises an extrusion device, a three-roller press polishing device, a tensioning device, a cooling device and a cutting device which are sequentially arranged, wherein the extrusion device comprises two horizontally arranged material cylinders, one end of each material cylinder is a closed end, the other end of each material cylinder is an output end, the two output ends are close to each other and are respectively connected with a distributor, each distributor comprises a main material inlet and an auxiliary material inlet which are close to the output ends, the main material inlets and the auxiliary material inlets are respectively connected with a splitter pump, the splitter pumps are respectively connected with a main flow passage and an auxiliary flow passage, a compression roller is arranged at the position of the main flow passage close to a converging flow passage, the compression rollers are arranged at the two ends in the thickness direction, and the axes of the.

Description

Steel coil peripheral guard plate production line

Technical Field

The invention belongs to the technical field of steel coil protection, and relates to a steel coil peripheral guard plate production line.

Background

The steel coil is made of steel materials, and is easy to corrode when encountering acid and water, the steel coil is easy to collide when being carried and rolled to cause deformation or damage of the steel coil, the value of the steel coil is high, and great economic loss can be caused if the steel coil is not protected, so that the steel coil produced by a common manufacturer can be wrapped with circumferential guard plates when leaving a factory, the production of the circumferential guard plates of the steel coil needs steps of raw material mixing, heating melting, plasticizing extrusion, cooling, cutting and segmenting and the like, the materials of the circumferential guard plates are generally polyethylene on the upper surface and the lower surface and polyurethane on the middle layer, the polyethylene has good chemical stability, can resist corrosion of most acid and alkali, and has low temperature resistance and excellent electrical insulation property; the polyurethane material has the characteristics of high strength, tear resistance, wear resistance and the like, and the steel coil can be well protected from impact and corrosion by matching the polyethylene and the polyurethane.

The steel coil peripheral guard plate extruder is generally used for multi-layer extrusion, but the technical problems of uneven material distribution of three layers of extruded plates and the like are caused by the difference of distributors; the upper surface and the lower surface of a general steel coil peripheral guard plate are smooth surfaces, and the technical problem that the buffering effect is not good enough exists.

Disclosure of Invention

The invention provides a steel coil peripheral guard plate production line, which solves the technical problem.

The technical scheme of the invention is realized as follows:

a steel coil peripheral guard plate, comprising:

the polyethylene film comprises an outer surface layer, a middle layer and an inner surface layer, wherein small bulges are uniformly distributed on the outer surface layer, the outer surface layer and the inner surface layer are polyethylene layers, and the middle layer is a polyurethane layer.

The utility model provides a steel coil week backplate production line, includes:

the three-roller press polishing device comprises an extrusion device, a three-roller press polishing device, a tensioning device, a cooling device and a cutting device, wherein the extrusion device is used for extruding the small bulges on the peripheral guard plate.

As a further technical scheme, the extrusion device comprises two material barrels which are respectively used for extruding the inner surface layer, the outer surface layer and the middle layer, one end of each material barrel is a closed end, the other end of each material barrel is an output end, and the two output ends are close to each other and are connected with a distributor.

As a further technical scheme, the distributor includes respectively with two the major ingredient entry and the auxiliary material entry that the output is connected, the major ingredient entry with the auxiliary material entry all is connected with the flow distribution pump, the flow distribution pump other end passes through the sprue and assists the runner and join the runner and be connected, the sprue with it is provided with the compression roller to join between the runner, the axis of compression roller is perpendicular with the direction of extrusion.

As a further technical scheme, the sprue level sets up, the assistance runner sets up the both sides of sprue symmetry, it is greater than to converge runner thickness the sprue thickness, the end that converges the runner with extrude the mouth and be connected, it is duckbilled to extrude the mouth shape, the thickness of extruding the mouth diminishes along extruding the direction gradually.

As a further technical scheme, a cooling device is arranged outside the charging barrel, the cooling device is close to the distributor, the cooling device comprises an annular pipeline arranged around the charging barrel in the circumferential direction, a water inlet and a water outlet are formed in the annular pipeline, a transverse partition plate and an annular partition plate are arranged in the annular pipeline, the surface of the transverse partition plate is perpendicular to the circumferential line of the annular pipeline, the extending direction of the annular partition plate is the same as the circumferential direction of the annular pipeline, one end of the annular partition plate is connected with the transverse partition plate, a notch is formed between the other end of the annular partition plate and the transverse partition plate, the annular pipeline is divided into a plurality of mutually communicated water channels by the annular partition plate, and the water inlet and the water outlet are respectively arranged on two.

As a further technical scheme, a filtering and water purifying device is arranged on the water inlet.

As a further technical scheme, be provided with the feed inlet on the feed cylinder, the feed inlet is the back taper, be provided with the screw rod along the axial in the feed cylinder, the one end of screw rod is passed feed cylinder one end is connected with the rotating electrical machines, the other end loop through bearing, connecting rod with the circumference inner wall of feed cylinder links to each other.

As a further technical scheme, the three-roller calendering device comprises a support arranged on one side of the extrusion device, the support is provided with an upper roller, a middle roller and a lower roller, axes of the upper roller, the middle roller and the lower roller are parallel to each other, the axes of the upper roller, the middle roller and the lower roller are on the same plane, the rotation directions of the middle roller and the upper roller, the rotation directions of the middle roller and the lower roller are opposite, a first gap is arranged between the middle roller and the lower roller, a second gap is arranged between the middle roller and the upper roller, and the extrusion opening is close to the first gap.

As a further technical scheme, the middle roller is provided with hole-type grooves which are uniformly distributed.

As a further technical solution, the first gap height is smaller than the extrusion opening height.

As a further technical scheme, the tensioning device comprises a tensioning frame arranged on one side of the three-roller calendaring device, an upper tensioning roller and a lower tensioning roller are arranged on the tensioning frame, and a tensioning gap for rolling the peripheral protection plate is formed between the upper tensioning roller and the lower tensioning roller.

As a further technical scheme, cooling device is including setting up the big water tank of stretch-draw clearance one side, be provided with the arc slide in the big water tank, arc slide top with it is the same to extrude a mouthful height, big water tank top is provided with little water tank, little water tank bottom is provided with the aperture.

As a further technical scheme, the cutting device comprises a platform arranged on one side of the cooling device, first sliding rollers perpendicular to the conveying direction are arranged at two ends of the platform along the conveying direction, a detachable V-shaped groove is arranged in the middle of the platform, the V-shaped groove is parallel to the axis of the first sliding rollers, a cutter capable of moving up and down is arranged above the platform, and the cutter is arranged right above the V-shaped groove.

As a further technical scheme, clamping grooves are formed in two sides of the V-shaped groove, and the extending direction of the clamping grooves is the same as the conveying direction.

Compared with the prior art, the invention has the working principle and the beneficial effects that:

1. according to the invention, the periphery guard plate is formed by compounding three layers of materials, the upper surface and the lower surface are made of polyethylene, the outer surface layer is exposed outside, small bulges are pressed and printed on the outer surface layer by the three-roller press polishing device, and the small bulges can increase the attractiveness of the periphery guard plate and improve the buffer effect of the periphery guard plate; the polyethylene material has the advantages of water resistance, acid resistance, smooth and flat surface, pressure resistance, impact resistance, cold resistance, high temperature resistance, corrosion resistance, aging resistance and the like, and can protect the end face of the steel coil from being damaged by impact resistance, water resistance and pressure resistance in storage and transportation; the polyurethane material has the characteristics of high strength, tear resistance, wear resistance and the like, and the steel coil can be well protected from impact and corrosion by matching the polyethylene and the polyurethane.

2. In the invention, an extrusion device is used for simultaneously extruding and forming the upper layer, the middle layer and the lower layer of materials of the peripheral protection plate, a three-roller press polish device is used for printing small pattern bulges on the surface of the peripheral protection plate in a laminating manner, a tension device is used for stretching and stretching the peripheral protection plate and providing traction force, and a cooling device is used for cooling and forming the peripheral protection plate materials to prevent the peripheral protection plate materials from deforming; the cutting device is used for cutting the plate into the size according with the perimeter of the steel coil.

3. The extrusion device comprises two horizontally arranged material cylinders, wherein one material cylinder is used for plasticizing and extruding a polyurethane main material, the other material cylinder is used for plasticizing and extruding a polyethylene auxiliary material, one end of the material cylinder is closed, and the other end of the material cylinder is an extruding end. The output ends of the two charging barrels are respectively connected with the main material inlet and the auxiliary material inlet of the distributor. The distributor is internally provided with a main material inlet and an auxiliary material inlet close to the output end of the extruding device, the main material is sent into the main runner through the splitter pump, the auxiliary material is sent into the two auxiliary runners, and the auxiliary runners are positioned on the upper side and the lower side of the main runner. The auxiliary material extruded by one extrusion device can be divided into two auxiliary flow channels through the dividing pump, and is extruded from the upper side and the lower side of the main flow channel, and is compounded with the main material to form the forming peripheral guard plate containing the upper layer, the middle layer and the lower layer, and the auxiliary material entering from the auxiliary material inlet is divided into the two auxiliary flow channels by the dividing pump, so that the number of the extrusion devices is reduced, and the cost is saved.

4. According to the invention, the upper side and the lower side of the main flow channel are provided with the auxiliary flow channels, the auxiliary flow channels are inclined towards the main flow channel and are intersected with the converging flow channel, the upper layer, the middle layer and the lower layer of raw materials are compounded into a whole in the converging flow channel and are extruded and molded from the extrusion port, one end of the distributor, which is far away from the extrusion device, is provided with the extrusion die, and the extrusion die is provided with the rectangular extrusion port. The one end opening that the sprue is being close to the flow divider pump with the assistance runner is less, along the direction grow gradually that is close to the runner of converging, to the width with converge the runner width unanimous, can make the material flow expand more easily like this, form the size of extruding, the material is also difficult for agglomerating. The sprue is close to and joins the runner department and is provided with the compression roller, and the compression roller setting is in the upper and lower both sides of sprue, and the extending direction of compression roller is perpendicular with the direction of extrusion, and the compression roller is used for tentatively compacting major ingredient, reduces the major ingredient and the auxiliary material joins back major ingredient because the auxiliary material of lower floor in the deformation extrusion, leads to the thick edge in the middle of the fashioned all backplate middle level to be thin, and the thin both sides thick condition in the middle of the upper and lower floor has improved the quality of product.

5. In the invention, the water cooling device is arranged at the position, close to the output end, of the extrusion device, is a closed annular sleeve and is sleeved on a charging barrel of the extrusion device, a transverse partition plate parallel to the axis of the charging barrel and an annular partition plate vertical to the axis of the charging barrel are arranged in the water cooling device, the transverse partition plate and the annular partition plate are both in seamless connection with the upper inner wall and the lower inner wall of the water cooling device, the two annular partition plates are totally arranged, one end of each annular partition plate is connected with the transverse partition plate, a certain gap is formed between the other end of each annular partition plate and the transverse partition. And a water inlet and a water outlet are respectively arranged on two sides of the transverse partition plate, the water inlet is communicated with the first annular water channel, and the water outlet is communicated with the third annular water channel. The water inlet is provided with a filtering device for filtering scale in the cooling water. Cold water enters from the water inlet, flows along the three annular water channels and flows out from the water outlet, and the cold water can fully flow in the cooling device and take away heat through the internally arranged transverse partition plate and the annular partition plate, so that the cooling efficiency is improved.

6. In the invention, mixed materials enter a charging barrel from a feeding hole, the charging barrel of an extruder is generally divided into five sections, the five sections have the functions of heating, melting and plasticizing, and the materials are fully mixed and subjected to pressure and shearing force by rotating and extruding a screw rod and are conveyed to an output end. Screw rod one end is supported by sealed end, the other end is supported by the connecting rod, because the screw rod incessantly rotates, consequently set up the bearing in screw rod end periphery, the bearing is together fixed with the connecting rod, the screw rod can be in the bearing free rotation, the screw rod both ends all receive the holding power, screw rod rotation rate is fast when only one end is supported, moment is big, the free end deflection is flagging, rotatory easy production is rocked, the crooked condition of screw rod, two side atress support has effectively reduced the rotatory unstable problem of screw rod, the life of screw rod has been prolonged. The screw thread that encircles on the screw rod has hard sharp anticorrosive characteristic, the fixed a plurality of little blades that have set up on the screw thread, can be along with the rotation and the material contact of screw rod, increase stirring efficiency, make the material intensive mixing, obtain bigger shearing force, screw rod screw thread is apart from the feed cylinder wall about 10-20 centimetres, both have certain interval and can prevent the friction of screw thread and blade and feed cylinder, it generates heat to reduce equipment work, make the temperature in the feed cylinder change the control relatively, the interval can make the screw rod fully play a role not very much, the diameter of screw thread is big, to stirring and the stronger power that impels the material just to produce.

7. The three-roller calendering device comprises three rollers with axes arranged on the same plane, a first gap and a second gap are formed between the rollers, and patterns, namely hole-shaped grooves, are arranged on a middle roller. The peripheral sheet passing through the outlet of the dispenser is wound into a first gap between the intermediate roller and the lower roller and is drawn out from a second gap between the intermediate roller and the upper roller, and the surface of the sheet contacting the intermediate roller is embossed with a pattern, i.e., a small projection of the upper surface layer, and passes through the second gap to change the conveying direction.

8. In the invention, the axes of the upper tensioning roller and the lower tensioning roller are parallel to each other, the two rollers are arranged up and down, the tensioning gap between the upper tensioning roller and the lower tensioning roller is basically consistent with the plate, and the plate is wound in the tensioning gap and can be tensioned and pulled.

9. According to the invention, the cooling device comprises a large water tank, an arc-shaped slide way is arranged in the large water tank, one end of the arc-shaped slide way is close to the extrusion opening, and a small water tank is arranged above the arc-shaped slide way. The board extruded glides along the arc slide thereupon, the arc slide is crossed by the cold water in the big water tank, consequently the water of board conveying along the arc slide is crossed the water and is cooled off, simultaneously, constantly there is water to flow out from the aperture of bottom plate in the little water tank of big water tank top, flow to the upper surface of extrusion plate, the combined action of upper and lower water tank makes the board cool off fast, because the slide is the arc, panel can be with the gliding downward equipment transportation along the arc slide, the other end from the arc slide is exported promptly, then cut.

10. According to the invention, the cutting device comprises a platform, the two ends of the platform along the conveying direction of the plate are respectively provided with a first sliding roller, and the arrangement of the first sliding rollers can enable the extrusion plate to enter the lower part of the cutter more smoothly. The platform is provided with a cutter which can move up and down, and the cutter is controlled by corresponding equipment to cut down frequency, so that the size of each cut extrusion plate is consistent. Be provided with V type recess under the cutter, first smooth roller all is perpendicular with extrusion plate direction of transfer with V type recess extending direction, and this V type recess detachable sets up on the platform, and V type recess and cutter size phase-match set up this V type recess can furthest cut off the extrusion plate, and long-term use easily makes V type recess wearing and tearing, set up to dismantling removable V type recess and can prolong whole cutting device's life-span. The both sides along panel direction of transfer on the platform all are provided with the draw-in groove, and the great first draw-in groove that is of one side interval, the less second draw-in groove that is of opposite side interval through the refrigerated panel of draw-in groove restriction, through the direction of transfer and the position of the panel that cuts. Be provided with the hobbing cutter between second draw-in groove and the cutter, the hobbing cutter setting is in the both sides of platform, and the hobbing cutter is used for cutting the edge of panel, and some flaws can all exist in general edge, if expect not even condition, consequently need cut the edge. The hob comprises a hob head, wherein a hob blade is arranged on the hob head, the hob blade is consistent with the conveying direction of the plate, and the hob blade is connected with the hob head through a roller and a bearing. The arrangement that a part of the hob blade sinks into the arc-shaped groove on the platform and a part of the hob blade is above the platform can enable the hob blade to be fully contacted with the sheet material, and the sheet material can be cut more quickly.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic view of a production line according to the present invention;

FIG. 2 is a schematic cross-sectional view of the peripheral guard plate according to the present invention;

FIG. 3 is a schematic view of the extruder of the present invention;

FIG. 4 is a schematic view showing the internal structure of a barrel of an extruder according to the present invention;

FIG. 5 is a perspective view of the internal structure of the dispenser of the present invention;

FIG. 6 is a schematic perspective view of the water cooling apparatus according to the present invention;

FIG. 7 is a schematic top view of the internal structure of the water cooling apparatus of the present invention;

FIG. 8 is a schematic structural view of a three-roll calendering device according to the present invention;

FIG. 9 is a schematic view of a tensioning device according to the present invention;

FIG. 10 is a schematic view of the cooling apparatus according to the present invention;

FIG. 11 is a schematic view of a cutting device according to the present invention;

FIG. 12 is a schematic view of the hob structure of the present invention;

in the figure: 1-extrusion device, 11-cylinder, 121-extrusion outlet, 13-feed inlet, 131-sealing cover, 132-rubber ring, 133-heating plate, 14-screw, 141-blade, 15-rotating motor, 16-bearing, 161-connecting rod, 17-air extractor, 171-air cylinder, 172-filter screen, 173-piston rod, 174-cylinder, 175-air release valve, 176-desiccant, 18-speed reducer, 19-belt, 2-cutting device, 21-platform, 211-arc groove, 22-first sliding roller, 23-V groove, 24-cutter, 25-clamping groove, 27-hob, 271-hob holder, 272-roller, 273-bearing, 274-hob blade, 3-three-roll calendering device, 31-support, 32-upper roll, 33-middle roll, 34-lower roll, 35-first gap, 36-second gap, 37-hole type groove, 38-heating device, 4-tensioning device, 41-tensioning frame, 42-upper tensioning roll, 43-lower tensioning roll, 44-tensioning gap, 5-cooling device, 51-big water tank, 52-arc slideway, 53-small water tank, 54-small hole, 61-upper surface layer, 62-middle layer, 63-lower surface layer, 64-small bulge, 71-closed end, 72-output end, 73-distributor, 731-main material inlet, 732-auxiliary material inlet, 733-splitter pump, 734-main flow channel, 735-auxiliary flow channel, 736-converging flow channel, 737-pressing roller, 74-water cooling device, 741-annular pipeline, 742-water inlet, 743-water outlet, 744-diaphragm, 745-annular diaphragm, 746-notch, 747-filtering water purifying device.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 12, the present invention provides a steel coil peripheral protection plate, which includes:

the outer surface layer 61, the middle layer 62 and the inner surface layer 63 are provided with small bulges 64 which are uniformly distributed, the outer surface layer and the inner surface layer are polyethylene layers, and the middle layer is a polyurethane layer.

In the embodiment, the steel coil peripheral guard plate is formed by compounding three layers of materials, the upper surface and the lower surface are made of polyethylene, the outer surface layer 61 is exposed outside, small bulges 64 are pressed on the outer surface layer 61 by the three-roller press polishing device 3, and the small bulges 64 can improve the attractiveness of the peripheral guard plate and improve the buffer effect of the peripheral guard plate; the polyethylene material has the advantages of water resistance, acid resistance, smooth and flat surface, pressure resistance, impact resistance, cold resistance, high temperature resistance, corrosion resistance, aging resistance and the like, and can protect the end face of the steel coil from being damaged by impact resistance, water resistance and pressure resistance in storage and transportation; the polyurethane material has the characteristics of high strength, tear resistance, wear resistance and the like, and the steel coil can be well protected from impact and corrosion by matching the polyethylene and the polyurethane.

As shown in fig. 1 to 12, the present invention provides a steel coil peripheral guard plate production line, which includes:

the three-roller calendering device comprises an extrusion device 1, a three-roller calendering device 3, a tensioning device 4, a cooling device 5 and a cutting device 2 which are arranged in sequence.

In this embodiment, the production of steel coil week backplate needs to be in proper order through extruding, press polish, tensile, cooling, cutting process, and correspondingly, week backplate production line is including the extrusion device 1, three-roller press polish device 3, tensioning equipment 4, cooling device 5, the cutting device 2 that set gradually. The extrusion device 1 is used for simultaneously extruding and forming the upper layer, the middle layer and the lower layer of materials of the peripheral guard plate, the three-roller calendaring device 3 is used for impressing small protrusions 64 with patterns on the outer surface layer 61 of the peripheral guard plate, the tensioning device 4 is used for flatly stretching and stretching the peripheral guard plate and providing traction force, and the cooling device 5 is used for cooling and forming the materials of the peripheral guard plate and preventing the materials of the peripheral guard plate from deforming; the cutting device 2 is used to cut the sheet to a size that conforms to the circumference of the steel coil.

Further, the extrusion apparatus 1 comprises two horizontally arranged barrels 11, one end of the barrel 11 is a closed end 71, the other end is an output end 72, and the two output ends 72 are close to each other and are both connected with a distributor 73.

In this embodiment, the extruding device 1 includes two horizontally arranged material cylinders 11, one material cylinder 11 is used for plasticizing and extruding the polyurethane main material, the other material cylinder 11 is used for plasticizing and extruding the polyethylene auxiliary material, one end of the material cylinder 11 is closed, and the other end is an extruding end. The output ends 72 of the two cartridges 11 are connected to the main material inlet 731 and the auxiliary material inlet 732 of the dispenser 73, respectively.

Further, the distributor 73 includes a main material inlet 731 and an auxiliary material inlet 732 near the output end 72, the main material inlet 731 and the auxiliary material inlet 732 are both connected to a shunt pump 733, and the shunt pump 733 is connected to the main flow passage 734 and the auxiliary flow passage 735.

In this embodiment, the distributor 73 is provided with a main material inlet 731 and an auxiliary material inlet 732 near the output end 72 of the extrusion device 1, the main material is fed into the main flow passage 734 through the splitter pump 733, the auxiliary material is fed into the two auxiliary flow passages 735, and the auxiliary flow passages 735 are located at the upper and lower sides of the main flow passage 734. The auxiliary material extruded by one extrusion device 1 can be divided into two auxiliary flow channels 735 by the dividing pump 733, and extruded from the upper and lower sides of the main flow channel 734, and compounded with the main material to form a forming peripheral guard plate containing upper, middle and lower three layers, and the auxiliary material entering from the auxiliary material inlet 732 is divided into two auxiliary flow channels 735 by the dividing pump 733, so that the number of the extrusion devices 1 is reduced, and the cost is saved.

Further, the main flow passage 734 is horizontally disposed, the auxiliary flow passages 735 are disposed at two symmetrical sides of the main flow passage 734 and are inclined toward the main flow passage 735, a converging flow passage 736 is disposed at the intersection of the main flow passage 734 and the auxiliary flow passages 735, the thickness of the converging flow passage 736 is greater than that of the main flow passage 734, and the end of the converging flow passage 736 is connected to the extrusion port 121 disposed on the extrusion mold 12.

In this embodiment, the upper and lower sides of the main flow channel 734 are provided with the auxiliary flow channels 735, the auxiliary flow channels 735 are inclined towards the main flow channel 734 and intersect with the converging flow channel 736, the upper, middle and lower layers of raw materials are combined into a whole in the converging flow channel 736 and are extruded from the extrusion opening 121, and one end of the distributor 73 away from the extrusion device is provided with the rectangular extrusion opening 121. The main flow passage 734 and the auxiliary flow passage 735 are smaller in opening at one end close to the splitter pump, and gradually become larger along the direction close to the converging flow passage 736, and the width is consistent with the width of the converging flow passage 736, so that the material can be more easily spread, the extruded size is formed, and the material is not easy to cake.

Further, the extrusion port 121 is shaped like a duckbill, and the thickness of the extrusion port 121 is gradually reduced along the extrusion direction.

In this embodiment, the extrusion die 12 is duckbilled, the extrusion opening 121 disposed at the end is flat and elongated, and the fully mixed material is converted from a curved motion to a linear motion in the converging flow channel 736 and moves to the extrusion opening 121 under the extrusion and shearing actions of the screw 14 in the charging barrel 11, and the material is pressed and compacted again due to the gradual reduction of the space in the extrusion die 12, and is extruded and molded from the extrusion opening 121, and the shape of the extrusion die is a continuous plate consistent with that of the extrusion opening 121.

Further, both ends of the main flow passage 734 in the thickness direction are provided with press rollers 737, and the axis of the press rollers 737 is perpendicular to the extrusion direction.

In this embodiment, sprue 734 is close to and joins runner 736 department and is provided with compression roller 737, and compression roller 737 sets up the upper and lower both sides at sprue 734, and compression roller 737's extending direction is perpendicular with the direction of extruding, and compression roller 737 is used for tentatively compacting major ingredient, and the major ingredient is reduced and major ingredient joins the back owing to the auxiliary material of upper and lower floor is extruded in deformation, leads to the thick edge in the middle of the fashioned all backplate middle layer to be thin, and the thin both sides thick condition in the middle of the upper and lower floor has improved the quality of product.

Further, a water cooling device 74 is arranged outside the charging barrel 11, the water cooling device 74 is close to the distributor 73, the water cooling device 74 comprises an annular pipeline 741 arranged around the circumference of the charging barrel 11, a water inlet 742 and a water outlet 743 are arranged on the annular pipeline 741, a transverse partition plate 744 and an annular partition plate 745 are arranged in the annular pipeline 741, the transverse partition plate 744 surface is perpendicular to the circumferential line of the annular pipeline 741, the extending direction of the annular partition plate 745 is the same as the circumferential direction of the annular pipeline 741, one end of the annular partition plate 745 is connected with the transverse partition plate 744, a gap 746 is arranged between the other end of the annular partition plate 744 and the transverse partition plate 744, the annular partition plate 745 divides the annular pipeline 741 into a plurality of water channels which.

In this embodiment, the water cooling device 74 is disposed at a position of the extrusion device close to the output end 72, the water cooling device 74 is a closed annular sleeve, the sleeve is sleeved on the material cylinder 11 of the extrusion device 1, the water cooling device 74 is disposed inside the transverse partition 744 parallel to the axis of the material cylinder 11 and the annular partition 745 perpendicular to the axis of the material cylinder 11, the transverse partition 744 and the annular partition 745 are both seamlessly connected to the upper and lower inner walls of the water cooling device 74, the annular partition 745 has two total, one end of the annular partition is connected to the transverse partition 744, the other end of the annular partition 744 has a certain gap, and three annular water channels formed by the two annular partitions 745 are communicated through the gap 746. A water inlet 742 and a water outlet 743 are respectively arranged on two sides of the transverse partition plate 744, the water inlet 742 is communicated with the first annular water channel, and the water outlet 743 is communicated with the third annular water channel. A filter 747 is provided at the water inlet 742 for filtering the scale in the cooling water.

Cold water enters from the water inlet 742, flows along the three annular water channels and flows out of the water outlet 743, and the cold water can fully flow in the cooling device and take away heat through the transverse partition plate 744 and the annular partition plate 745 which are arranged inside, so that the cooling efficiency is improved.

Further, a filtering and water purifying device 747 is provided on the water inlet 742.

In this embodiment, the water in north is hard and contains a lot of calcium and magnesium ions, and the cooling water used for a long time is easy to block the water pipe, and the scale attached to the inner wall will also reduce the efficiency of the water cooling device 74, so the addition of the filtering water purifying device 747 can effectively reduce the scale and prolong the service life of the cooling device.

Further, a feed inlet 13 is formed in the material barrel 11, the feed inlet 13 is in an inverted cone shape, a screw 14 is axially arranged in the material barrel 11, one end of the screw 14 penetrates through one end of the material barrel 11 and is connected with a rotating motor 15, the other end of the screw is connected with the circumferential inner wall of the material barrel 11 sequentially through a bearing 16 and a connecting rod 17, and a blade 141 is fixedly arranged on the screw 14.

In this embodiment, the feed inlet 13 is an inverted cone, the cone top contacts the barrel 11, the axis of the cone top is perpendicular to the axis of the barrel 11, and the feed inlet 13 is connected with the inner cavity of the barrel 11. The screw 14 is arranged in the charging barrel 11 along the axis, the outer edge of the thread on the screw 14 is 10-20 cm away from the inner wall of the charging barrel 11, a plurality of small blades 141 are fixedly arranged at the edge of the thread of the screw 14 close to the edge, one end of the screw 14 penetrates through the sealing end of the charging barrel 11 to be connected with a rotating device, the other end of the screw is connected with the inner wall of the charging barrel 11 through a bearing 16 and a connecting rod 161 in sequence, the rotating device comprises a speed reducer 18 connected with the end part of the screw 14, and the.

The mixed material enters the barrel 11 from the feed port 13, the barrel 11 of the extruder is generally divided into five sections, has the function of heating, melting and plasticizing, and is extruded by the rotation of the screw 14, so that the material is fully mixed, and the material is subjected to pressure and shearing force and is conveyed to the output end 72. One end of the screw 14 is supported by the sealing end, the other end of the screw is supported by the connecting rod 161, and the screw 14 rotates ceaselessly, so the bearing 16 is arranged at the periphery of the tail end of the screw 14, the bearing 16 is fixed with the connecting rod 161, the screw 14 can rotate freely in the bearing 16, both ends of the screw 14 are supported by supporting force, only one end of the screw 14 is supported, the rotation speed of the screw 14 is high, the moment is large, the free end bends and droops, the rotation easily generates the conditions of shaking and bending of the screw 14, the problem of unstable rotation of the screw 14 is effectively reduced due to the bilateral stress support, and the service. The screw thread that encircles on the screw rod 14 has hard sharp anticorrosive characteristic, the fixed a plurality of small blade 141 that have set up on the screw thread, can be along with the rotation of screw rod 14 and material contact, increase stirring efficiency, make the material intensive mixing, obtain bigger shearing force, screw rod 14 screw thread is about 10-20 centimetres apart from feed cylinder 11 wall, both have certain interval and can prevent the friction of screw thread and blade 141 and feed cylinder 11, it generates heat to reduce equipment work, make the temperature in the feed cylinder 11 more easily controlled relatively, the interval is not very big can make screw rod 14 fully play a role, the diameter of screw thread is big, to stirring and the stronger power that impels the material just to produce.

Further, the three-roll calendering device 3 comprises a support 31 arranged on one side of the extrusion device 1, an upper roller 32, a middle roller 33 and a lower roller 34 with axes parallel to each other are arranged on the support 31, the axes of the upper roller 32, the middle roller 33 and the lower roller 34 are on the same plane, the rotation directions of the middle roller 33 and the upper roller 32, the middle roller 33 and the lower roller 34 are opposite, a first gap 35 is arranged between the middle roller 33 and the lower roller 34, a second gap 36 is arranged between the middle roller 33 and the upper roller 32, and the extrusion opening 121 is close to the first gap 35.

In this embodiment, the three-roll calendering device 3 comprises three rollers with axes arranged on the same plane, a first gap 35 and a second gap 36 are formed between the rollers, and the middle roller 33 is provided with patterns, i.e. hole-type grooves 37. The peripheral sheet passing through the outlet 121 of the dispenser 73 is wound into the first gap 35 between the middle roller 33 and the lower roller 34 and is discharged from the second gap 36 between the middle roller 33 and the upper roller 32, and a pattern, i.e., the small protrusions 64 of the upper skin layer, is extruded on the side contacting the middle roller 33 and passes through the second gap 36 to change the conveying direction.

Further, the middle roller 33 is provided with evenly distributed hole-type grooves 37.

In this embodiment, since the peripheral protective sheet just extruded is not cooled yet, when it comes into contact with the groove 37 of the hole pattern on the middle drum 33, it is deformed by the force of the extrusion, and a pattern of small protrusions 64 is formed on the surface.

Further, the height of the first gap 35 is smaller than the height of the extrusion port 121.

In this embodiment, the first gap 35 is slightly less than the thickness of the extruded sheet so that the sheet is substantially in contact with the groove 37 of the middle roller 33 and is extruded with a pattern.

Further, heating devices 38 are provided inside the upper drum 32, the middle drum 33, and the lower drum 34.

In this embodiment, the heating device 38 is arranged in the roller of the three-roller calendering device 3, the temperature of the roller surface is too low, the surface of the slab is rapidly cooled and hardened, and the slab cannot be tightly attached to the roller surface, so that the surface of the product is matt, and the transparency is reduced, therefore, the roller needs to be heated, the temperature of the roller is higher than 100 ℃, and an oil heating method is generally used.

Further, the tensioning device 4 comprises a tensioning frame 41 arranged on one side of the three-roller calendering device 3, an upper tensioning roller 42 and a lower tensioning roller 43 are arranged on the tensioning frame 41, and a tensioning gap 44 for rolling the peripheral protection plate is formed between the upper tensioning roller 42 and the lower tensioning roller 43.

In this embodiment, the axes of the upper tensioning roller 42 and the lower tensioning roller 43 are parallel to each other, the two rollers are arranged up and down, the tensioning gap 44 between the upper tensioning roller 42 and the lower tensioning roller 43 is substantially consistent with the plate, and the plate is wound in the tensioning gap 44 and can be tensioned and pulled. If the plate is not tension-controlled and can generate deformation, if the traction speed is faster than the speed of conveying the product by the three-roller calendering device 3, the tension of the plate product is too high, and the product can generate internal stress.

Further, the cooling device 5 comprises a large water tank 51 arranged on one side of the tensioning gap 44, an arc-shaped slide way 52 is arranged in the large water tank 51, the top of the arc-shaped slide way 52 is as high as the extrusion opening 121, a small water tank 53 is arranged above the large water tank 51, and a small hole 54 is arranged at the bottom of the small water tank 53.

In this embodiment, the cooling mode is water cooling, and cooling device 5 includes big water tank 51, is provided with arc slide 52 in the big water tank 51, and arc slide 52 one end is close to extrusion opening 121, and arc slide 52 top is provided with little water tank 53. The extruded plate slides downwards along the arc-shaped slide way 52, the arc-shaped slide way 52 is submerged by cold water in the large water tank 51, the plate conveyed along the arc-shaped slide way 52 is cooled by the water, meanwhile, water continuously flows out of the small holes 54 of the bottom plate in the small water tank 53 above the large water tank 51 and flows to the upper surface of the extruded plate, the plate is rapidly cooled under the combined action of the upper water tank and the lower water tank, and the plate can be transported to the next device along the arc-shaped slide way 52 smoothly due to the arc-shaped slide way, namely, the plate is output from the other end of the arc-shaped slide way 52 and then cut.

Further, the cutting device 2 comprises a platform 21 arranged on one side of the cooling device 5, first sliding rollers 22 perpendicular to the conveying direction are arranged at two ends of the platform 21 along the conveying direction, a detachable V-shaped groove 23 is arranged in the middle of the platform 21, the V-shaped groove 23 is parallel to the axis of the first sliding rollers 22, a cutter 24 capable of moving up and down is arranged above the platform 21, and the cutter 24 is arranged right above the V-shaped groove 23.

In this embodiment, the cutting device 2 is used for cutting a continuous rectangular plate into a proper size, the cutting device 2 includes a platform 21, the two ends of the platform 21 in the plate conveying direction are both provided with a first sliding roller 22, and the arrangement of the first sliding roller 22 can enable the extruded plate to enter the lower portion of the cutter 24 more smoothly. The platform 21 is provided with a cutter 24 which can move up and down, and the cutting frequency of the cutter 24 is controlled by corresponding equipment, so that each extruded plate to be cut is consistent in size. Be provided with V type recess 23 under cutter 24, first smooth roller 22 all is perpendicular with extrusion plate direction of delivery with V type recess 23 extending direction, this V type recess 23 detachable sets up on platform 21, V type recess 23 and cutter 24 size phase-match set up this V type recess 23 can furthest cut off the extrusion plate, and long-term use easily makes V type recess 23 wearing and tearing, set up to detachable and replaceable V type recess 23 can prolong the life-span of whole cutting device 2.

Further, the two sides of the V-shaped groove 23 are provided with clamping grooves 25, and the extending direction of the clamping grooves 25 is the same as the conveying direction of the peripheral guard plates.

In this embodiment, all be provided with the draw-in groove along panel direction of transfer's both sides on the platform 21, through the direction of transfer and the position of refrigerated panel, the panel that cuts through the draw-in groove restriction.

Further, a hob cutter 27 is arranged on one side of the second clamping groove 26, the hob cutter 27 comprises a hob cutter holder 271 with one end fixed on the platform 21, the other end of the hob cutter holder 271 is connected with a hob cutter blade 274 sequentially through a hob shaft 272 and a bearing 273, an arc-shaped groove 211 is arranged below the hob cutter blade 274, the arc-shaped groove 211 is arranged on the platform 21, and the hob cutter blade 274 is partially arranged in the arc-shaped groove 211.

In this embodiment, the roller cutters 27 are disposed between the second clamping groove 26 and the cutting blade 24, the roller cutters 27 are disposed on two sides of the platform 21, the roller cutters 27 are used for cutting the edge of the plate material, and the general edge has some defects, such as uneven material, and therefore the edge needs to be cut. The hob cutter 27 comprises a hob cutter frame 271, a hob cutter 274 is arranged on the hob cutter frame 271, the hob cutter 274 is consistent with the conveying direction of the plate, and the hob cutter 274 is connected with the hob cutter frame 271 through a roller 272 and a bearing 273. The arrangement of the roller blades 274 partially recessed in the arcuate recesses 211 in the platform and partially above the platform 21 allows the roller blades 274 to be in full contact with the sheet material to cut the sheet material more quickly.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The production line of the steel coil peripheral guard plate is characterized by comprising an extrusion device (1), a three-roller calendaring device (3) used for extruding small bulges on the peripheral guard plate, a tensioning device (4), a cooling device (5) and a cutting device (2), wherein the extrusion device (1) comprises two material cylinders (11) which are respectively used for extruding an inner surface layer, an outer surface layer and a middle layer, one end of each material cylinder (11) is a closed end (71), the other end of each material cylinder is an output end (72), and the two output ends (72) are close to each other and are connected with a distributor (73);

the distributor (73) comprises a main material inlet (731) and an auxiliary material inlet (732) which are respectively connected with the two output ends (72), the main material inlet (731) and the auxiliary material inlet (732) are both connected with a shunt pump (733), and the other end of the shunt pump (733) is connected with a confluence flow channel (736) through a main flow channel (734) and an auxiliary flow channel (735);

a pressing roller (737) is arranged between the main flow passage (734) and the converging flow passage (736), and the axis of the pressing roller (737) is perpendicular to the extrusion direction;

the main flow passage (734) is horizontally arranged, the auxiliary flow passage (735) is arranged on two symmetrical sides of the main flow passage (734), the thickness of the converging flow passage (736) is larger than that of the main flow passage (734), the tail end of the converging flow passage (736) is connected with the extrusion opening (121), the extrusion opening (121) is duckbilled, and the thickness of the extrusion opening (121) is gradually reduced along the extrusion direction.

2. A steel coil peripheral guard plate production line as claimed in claim 1, characterized in that a water cooling device (74) is arranged outside the charging barrel (11) near the distributor (73), the water cooling device (74) comprises an annular pipeline (741) wound outside the charging barrel (11), the annular pipeline (741) is provided with a water inlet (742) and a water outlet (743), a transverse clapboard (744) is arranged in the annular pipeline (741) along the axis, annular clapboards (745) are arranged at intervals in the extending direction of the transverse clapboard (744), the annular partition plates (745) are provided with notches (746), the notches (746) on two adjacent annular partition plates (745) are respectively arranged on two sides of the transverse partition plate (744), the annular partition plate (745) divides the annular pipeline (741) into a plurality of water channels which are communicated with each other, and a filtering and water purifying device (747) is arranged on the water inlet (742).

3. The production line of the steel coil peripheral protective plate as claimed in claim 1, wherein a feed inlet (13) is formed in the feed cylinder (11), the feed inlet (13) is in an inverted cone shape, a screw rod (14) is axially arranged in the feed cylinder (11), one end of the screw rod (14) passes through one end of the feed cylinder (11) and is connected with a rotating motor (15), and the other end of the screw rod sequentially passes through a bearing (16) and a connecting rod (161) and is connected with the circumferential inner wall of the feed cylinder (11).

4. A steel coil peripheral guard plate production line as claimed in claim 1, characterized in that the three-roller calendering device (3) comprises a bracket (31) arranged at one side of the extrusion device (1), an upper roller (32), a middle roller (33) and a lower roller (34) with mutually parallel axes are arranged on the bracket (31), the axes of the upper roller (32), the middle roller (33) and the lower roller (34) are positioned on the same plane, a first gap (35) is arranged between the middle roller (33) and the lower roller (34), a second gap (36) is arranged between the middle roller (33) and the upper roller (32), the extrusion opening (121) is adjacent to the first gap (35), the height of the first gap (35) is smaller than the height of the extrusion opening (121), the middle roller (33) is provided with hole-type grooves (37) which are uniformly distributed.

5. The production line of steel coil peripheral protective plates according to claim 4, characterized in that the tensioning device (4) comprises a tensioning frame (41) arranged on one side of the three-roller calendering device (3), an upper tensioning roller (42) and a lower tensioning roller (43) are arranged on the tensioning frame (41), and a tensioning gap (44) for rolling the peripheral protective plates is formed between the upper tensioning roller (42) and the lower tensioning roller (43).

6. The steel coil perimeter guard plate production line according to claim 5, characterized in that the cooling device (5) comprises a large water tank (51) arranged on one side of the tensioning gap (44), an arc-shaped slideway (52) is arranged in the large water tank (51), the top of the arc-shaped slideway (52) is as high as the extrusion opening (121), a small water tank (53) is arranged above the large water tank (51), and a small hole (54) is arranged at the bottom of the small water tank (53).

7. The steel coil peripheral guard plate production line according to claim 6, wherein the cutting device (2) comprises a platform (21) arranged on one side of the cooling device (5), first sliding rollers (22) perpendicular to the conveying direction are arranged at two ends of the platform (21) along the conveying direction, a detachable V-shaped groove (23) is arranged in the middle of the platform (21), the V-shaped groove (23) is parallel to the axis of the first sliding rollers (22), a cutter (24) capable of moving up and down is arranged above the platform (21), and the cutter (24) is arranged right above the V-shaped groove (23).

8. The production line for steel coil peripheral protective plates as claimed in claim 7, wherein clamping grooves (25) are arranged on two sides of the V-shaped groove (23).