CN217411966U

CN217411966U - Roller type inlet side guide plate mechanism for crimping machine

Info

Publication number: CN217411966U
Application number: CN202221398826.4U
Authority: CN
Inventors: 孙小邓; 张庭刚; 刘振华; 董鸽; 赵建玉; 郭友亮; 王玉舜
Original assignee: TANGSHAN RUN MACHINE EQUIPMENT MANUFACTURING CO LTD
Current assignee: TANGSHAN RUN MACHINE EQUIPMENT MANUFACTURING CO LTD
Priority date: 2022-06-07
Filing date: 2022-06-07
Publication date: 2022-09-13
Anticipated expiration: 2032-06-07

Abstract

The utility model relates to a crimping machine roller type entrance side deflector mechanism belongs to the hot rolling belted steel and curls application technical field. The technical scheme is as follows: the inner side of the bottom of the machine front side guide plate (1) is provided with a square groove (24), the machine front side guide plate in the vertical direction of the square groove (24) is provided with a shaft hole (26) and a shaft (19), the shaft and a roller (18) are assembled in a clearance fit manner to form a roller device, the machine front side guide plate (1) below the square groove is provided with a pin hole (25) in the horizontal direction, an elastic cylindrical pin (21) with an opening is assembled to support the shaft (19), and a wear-resistant ring (20) is installed at the lower end of the roller (18). The utility model has the advantages that: the one-time cycle life can reach more than 30 days, the phenomena of flash and burr at the edge of the strip steel can not be caused, and the quality of a cold-rolled plate surface is improved; the side guide plates are matched with a centering mechanism to accurately center the strip steel.

Description

Roller type inlet side guide plate mechanism for crimping machine

Technical Field

The utility model relates to a crimping machine roller type entrance side deflector mechanism belongs to the hot rolling belted steel and curls application technical field.

Background

At present, strip steel is rolled and formed by a finishing mill and then is rolled and formed by a laminar flow cooling roller way to the front of a crimping machine, the strip steel is crimped into a steel coil by the crimping machine, and the steel coil is bound by a packing machine and then is conveyed to a steel coil storage area. The prior art has the following problems: the temperature of the strip steel is between 600 ℃ and 650 ℃, the strip steel can be worn at an accelerated speed when passing through the side guide plate of the conveying roller way, the side guide plate structure in the prior art is composed of a side guide plate body and a wear-resistant lining plate, and the wear-resistant lining plate is fixed on the side guide plate body through bolts. After the wear-resistant lining plates are worn, the side guide plates need to be detached from the line, the wear-resistant lining plates need to be replaced, the linear speed of the strip steel is about 13m/s at high speed, and the wear-resistant lining plates on the side guide plates are in direct contact with the strip steel, so the online service life of the side guide plates becomes an important factor for determining the production efficiency of a strip steel rolling production line, and is one of technical bottlenecks which the steel industry wants to solve for many years; the first generation of guide plates of people is made of Q345 material, the guide plates and the strip steel are directly rubbed in a sliding way, the guide plates are rubbed by the strip steel for about 5-7mm every 6-8 hours, the precision cannot achieve the guiding function, the steel coil is badly formed, the whole rolling line is required to be stopped, a new guide plate spare part is replaced by a crown block, and the use time is 20-25 minutes; the worn groove part of the replaced guide plate needs to be welded and repaired again, and then the guide plate is polished and leveled, and each set of guide plate needs to be used for 3 hours generally; in order to meet continuous production operation, general enterprises need to prepare 3-4 sets of guide plate spare parts, although the side guide plates can be replaced by utilizing the roll changing time every time, the rolling time is not occupied, overhead travelling crane equipment and maintenance personnel need to be separated to carry out repeated work every shift, and the expenses of welding equipment and labor, spare part maintenance, spare part storage, welding field and the like need to be borne. Although the Q345A material has good welding performance and low price, along with the increasingly prominent restriction on the production line, people develop a second generation composite material wear-resistant lining plate, the wear resistance is obviously improved, thus although the one-time investment is large, the application of the wear-resistant material enables the one-time use period of the guide plate to reach 10 days, the structure has some problems besides high cost, the first is that the lining plate needs to be returned to a factory for laser cladding welding, the uncontrollable property of outsourcing processing sometimes directly becomes an important factor restricting the production, in order to meet the requirement of normal continuous production of the lining plate, although the cost is high, three sets of spare parts are prepared at least, and the other problem is that the hardness of the lining plate of the wear-resistant material is far greater than that of strip steel, and sliding friction is generated between the lining plate and the strip steel under severe working conditions of high speed, vibration and the like, the flash and burr are produced on the edge of the strip steel plate, which affects the next rolling precision, namely, the defects are easily produced in the cold rolling process, and the plate surface quality is affected. Secondly, the existing rolling equipment winding machine and the rolling mill are relatively fixed, the winding central line cannot be well controlled when the strip steel head enters the winding machine, and the rolling central line and the winding central line are not on the same line in the actual rolling and winding process of the strip steel, so that the wound strip steel is irregular up and down, and even the strip steel is damaged.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a rolling wheel type entrance side guide plate mechanism for crimping machine, change the sliding friction between traditional baffle and belted steel into rolling friction, disposable cycle life can reach more than 30 days, carbide gyro wheel and axle can also continue to retrieve and recycle, can completely be used in one spare according to the on-the-spot condition, shorten and change spare parts time and maintenance time greatly, because rolling friction between gyro wheel and belted steel in the operation process, so can not lead to belted steel edge overlap burr phenomenon completely, improved the cold rolling face quality; the side guide plate is matched with a centering mechanism to accurately center the strip steel, and the technical problems in the prior art are solved.

The technical scheme of the utility model is that:

the utility model provides a crimping machine gyro wheel type entrance side deflector mechanism, contains crimping machine one and quick-witted preceding rollgang, and the rollgang is located the place ahead of crimping machine one before the machine, and quick-witted preceding rollgang contains quick-witted front side deflector and entry rollgang one, and the both sides of entry rollgang one set up quick-witted front side deflector respectively, open the inboard square groove in quick-witted front side deflector bottom, set up the shaft hole and set up the axle on the quick-witted front side deflector of square groove vertical direction, and axle and gyro wheel hole clearance fit assembly constitute roller device, and the pinhole of horizontal direction is seted up to quick-witted front side deflector of square groove below, assembles opening elasticity cylindric lock, holds the axle, and wear ring is installed to the gyro wheel lower extreme.

More than one roller device is arranged on the square groove.

The roller and the shaft are made of YG8 hard alloy material, and the material of the front side guide plate of the machine is Q345.

The automatic rolling machine is characterized in that a second rolling machine is arranged behind the first rolling machine, an upper rolling channel is arranged between the first rolling machine and the second rolling machine, the upper rolling channel is identical to a front rolling channel in structure and comprises an upper guide plate and an inlet rolling channel II, the upper guide plate is arranged on each of two sides of the inlet rolling channel II, and a roller device is arranged at the bottom of the upper guide plate on each machine.

The front side guide plates of the rolling mill are positioned on two sides of a rolling central line and can move towards the rolling central line simultaneously; the rolling center line and the center lines of the front conveying roller way, the upper conveying roller way, the first crimping machine and the second crimping machine are positioned on the same vertical plane; two sides of the front side guide plate of the machine are respectively provided with a first hydraulic cylinder, and the front side guide plate of the machine moves towards the rolling central line, so that the strip steel on the front conveying roller way of the machine is centered and curled.

The guide plates on the upper side of the rolling mill are positioned on two sides of a rolling central line and can move towards the rolling central line simultaneously; two sides of the guide plate on the upper side of the machine are respectively provided with a second hydraulic cylinder, and the guide plate on the upper side of the machine moves towards a rolling central line, so that the strip steel on the conveying roller way on the machine is centered and curled.

In the process of rolling the strip steel, the strip steel is strongly rubbed with a front conveying roller way or an upper conveying roller way of the machine, the excircle of the roller is in rolling friction with the strip steel in the running process, the hardness of the roller exceeds the hardness of the strip steel, and the service life of the roller is prolonged; because the rolling friction is adopted between the excircle of the roller and the strip steel in the operation process, the phenomenon of flash and burr at the edge of the strip steel can not be caused.

The utility model has the advantages that: the sliding friction between the traditional guide plate and the strip steel is changed into rolling friction, the one-time cycle life can reach more than 30 days, the hard alloy roller and the shaft can be continuously recycled and reused, and can be completely used for one by one according to the field condition, so that the spare part replacing time and the overhauling time are greatly shortened, and the rolling friction between the roller and the strip steel in the running process can completely avoid the phenomenon of flash and burr at the edge of the strip steel, thereby improving the quality of the cold-rolled plate surface; the side guide plates are matched with a centering mechanism to accurately center the strip steel.

Drawings

Fig. 1 is a schematic top view of an embodiment of the present invention;

fig. 2 is a schematic view of the overall structure of the embodiment of the present invention;

FIG. 3 is a sectional view of a front roller conveyor of the embodiment of the present invention;

fig. 4 is a schematic view of a crimper according to an embodiment of the present invention;

fig. 5 is a schematic view of a second operation of the crimping machine according to the embodiment of the present invention;

FIG. 6 is a schematic diagram of a front side guide plate structure of the embodiment of the present invention;

fig. 7 is a schematic assembly sectional view of a front guide plate of a machine according to an embodiment of the present invention;

FIG. 8 is a schematic cross-sectional view of a second embodiment of the roller of the front guide plate of the present invention;

in the figure: the automatic rolling device comprises a machine front side guide plate 1, a first inlet roller way 2, a first hydraulic cylinder 3, a first upper pinch roller 4, a guide plate 5, a second inlet roller way 6, a machine upper side guide plate 7, a first crimper 8, a second crimper 9, a second upper pinch roller 10, a second fixed guide plate 11, a first fixed guide plate 12, a second hydraulic cylinder 13, a rolling center line 14, a third hydraulic cylinder 15, a first lower pinch roller 16, a first lower guide plate 17, a roller 18, a shaft 19, a wear-resistant ring 20, an open elastic cylindrical pin 21, a second lower pinch roller 22, a second lower guide plate 23, a square groove 24, a pin hole 25 and a shaft hole 26.

Detailed Description

The present invention will be further explained by embodiments with reference to the accompanying drawings.

The utility model provides a crimping machine is with gyro wheel type entrance side deflector mechanism, contains crimping machine and quick-witted rollgang, and the rollgang is located the place ahead of crimping machine one before the machine, and quick-witted rollgang contains quick-witted front side deflector 1 and entry rollgang 2 before the machine, and the both sides of entry rollgang 2 set up quick-witted front side deflector 1 respectively, the inboard square groove 24 that has opened in quick-witted front side deflector 1 bottom, set up shaft hole 26 and set up axle 19 on the quick-witted front side deflector 1 of square groove 24 vertical direction,

axle

19 and 18 hole clearance fit assembly of gyro wheel constitute the gyro wheel device, and quick-witted front side deflector 1 of square groove 24 below sets up the pinhole 25 of horizontal direction, assembles opening elasticity cylindric lock 21, holds

axle

19, and 18 lower extreme installation wear ring 20 of gyro wheel.

More than one roller device is arranged on the square groove 24.

The roller 18 and the shaft are made of YG8 hard alloy material, and the material of the front guide plate 1 is Q345.

The automatic crimping machine is characterized in that a crimping machine II 9 is arranged behind the crimping machine I8, an on-machine conveying roller way is arranged between the crimping machine I8 and the crimping machine II 9, the on-machine conveying roller way is identical to the structure of the on-machine conveying roller way in structure, the on-machine conveying roller way comprises an on-machine side guide plate 7 and an inlet roller way II 6, the upper-machine side guide plate 7 is arranged on each of two sides of the inlet roller way II 6, and a roller device is arranged at the bottom of the on-machine side guide plate 7.

The front side guide plates 1 are positioned at two sides of a rolling central line 14 and can move towards the rolling central line 14 simultaneously; the rolling central line 14 and the central lines of the front conveying roller way, the upper conveying roller way, the first crimping machine 8 and the second crimping machine 9 are positioned on the same vertical plane; two sides of the front side guide plate 1 of the machine are respectively provided with a first hydraulic cylinder 3, and the front side guide plate of the machine moves towards the rolling central line 14, so that strip steel on a front conveying roller way of the machine can be centered and curled.

The upper side guide plates 7 are positioned at two sides of a rolling central line 14 and can move towards the rolling central line 14 simultaneously; two sides of the guide plate 7 on the upper side of the machine are respectively provided with a hydraulic cylinder II 13, and the guide plate on the upper side of the machine moves to a rolling central line 14 to realize the centering and curling of the strip steel on the conveying roller way on the machine.

An upper pinch roll I4 and a lower pinch roll I16 which are matched with each other are arranged between the front conveying roller way of the machine and the crimping machine I8, and a fixed guide plate I12 and a lower guide plate I17 are arranged to form a channel for strip steel to enter the crimping machine I8; an upper pinch roll II 10 and a lower pinch roll II 22 which are matched with each other are arranged between the upper conveying roller channel and the second crimping machine 9, and a fixed guide plate II 11 and a lower guide plate II 23 are arranged to form a channel for the strip steel to enter the second crimping machine 9.

The upper end part of the first fixed guide plate 12 is provided with a guide plate 5, the guide plate 5 is driven to lift through a third hydraulic cylinder 15, and the upper pinch roll 4 is driven to lift through a fourth hydraulic cylinder, so that the band steel is switched and curled between a first curling machine 8 and a second curling machine 9. And the guide plate 5 is positioned at the front end of the conveying roller way on the machine and is matched with the upper pinch roller I4 to act.

The strip steel is rolled and formed by a finishing mill and then is conveyed to the front of a crimper I8 through a front conveying roller way, a hydraulic cylinder I3 drives a front side guide plate 1 to be tightened from the maximum opening state to the middle, centering and guiding are carried out on the strip steel, and guide plates on two sides stop at set positions; at the moment, the guide plate 5 is lifted to be positioned at the upper position, the strip steel is prevented from entering an upper conveying roller channel of the machine, the upper pinch roller I4 descends and is matched with the lower pinch roller I16, the pinch strip steel enters a channel formed by the fixed guide plate I12 and the lower guide plate I17, and the strip steel is curled through the curling machine I8; after the first crimper 8 finishes the curling of the strip steel, the front side guide plate 1 of the first crimper returns to the initial position, the guide plate 5 descends to the lower position, the next rolled strip steel arrives, the front side guide plate 1 of the first crimper and the upper pinch roll 4 do not move, the strip steel directly passes through a front conveying roller way of the first crimper, enters an upper conveying roller way of the first crimper through the guide plate 5 to center the strip steel, is pinch-fed by the second upper pinch roll 10 and the second lower pinch roll 22 into a channel formed by the second fixed guide plate 11 and the second lower guide plate 23, and is crimped through the second crimper 9; at the moment, the steel coil on the first coiling machine 8 is conveyed to the steel coil storage area, and the first coiling machine 8 continuously coils the next strip steel in cycles;

in the process of rolling the strip steel, the strip steel is strongly rubbed with a front conveying roller way or an upper conveying roller way of the machine, the rolling friction is generated between the excircle of the roller 18 and the strip steel in the running process, the hardness of the roller 18 exceeds the hardness of the strip steel, and the service life of the roller is prolonged; because the rolling friction is adopted between the excircle of the roller and the strip steel in the operation process, the phenomenon of flash and burr at the edge of the strip steel can not be caused.

Example one, refer to fig. 1, 2, 3, 4, 5, 6, 7.

A roller device is arranged on the square groove 24.

Example two, refer to fig. 1, 2, 3, 4, 5, 6, 8.

Two roller devices are arranged on the square groove 24.

The working process is as follows: the speed of the hot rolled strip before it enters the first or second crimper is relatively slow. The hydraulic cylinder I3 drives the front side guide plate 1 of the machine to be tightened from the maximum opening state to the middle, centering guide is carried out on strip steel, the guide plates on two sides stop at the position where the distance is 5mm larger than the width of the strip steel, at the moment, the guide plate 5 is driven by the hydraulic cylinder III to be located at the upper position, the upper pinch roll I can move up and down to be matched with the lower pinch roll I to clamp the strip steel, the head of the strip steel is clamped by the upper pinch roll I and the lower pinch roll I and then is guided by the guide plate 5 to be sent to the crimper I8, the rotating speed of the crimper is increased, the moving speed of the strip steel is increased to 13m/s, severe sliding friction is generated between two side edges of the strip steel and the front side guide plate 1 of the machine, and a roller device at the bottom of the front side guide plate 1 of the machine is in rolling contact with the strip steel, and abrasion is reduced; the coiling time of the strip steel is 40s, after the strip steel is coiled, the front side guide plate 1 of the machine returns to the initial position, and the guide plate 5 is driven to the lower position by the hydraulic cylinder III. After the interval is 20s, the next rolled strip steel arrives, the front side guide plate 1 and the upper pinch roll I4 of the machine do not act, the strip steel directly passes through, is centered by the upper side guide plate 7 of the machine through the guide plate 5, and is pinched by the upper pinch roll II 10 and the lower pinch roll II 22 to enter the crimping machine II 9 for crimping; at this time, the steel coil on the first coiling machine 8 is conveyed to the steel coil storage area, and the first coiling machine 8 continuously coils the next strip steel in a circulating way.

The utility model discloses a roller device reduces the wearing and tearing volume in the side guide uses, changes the side guide structure that uses now, changes sliding friction into rolling friction, considers the performance of material, selects the carbide material, and carbide is the powder with one kind or several kinds of difficult carbide as the principal ingredients, adds the cobalt powder that plays the bonding, the material that makes with powder metallurgy method. The hard alloy has a series of excellent performances of high hardness, wear resistance, good strength and toughness, heat resistance, corrosion resistance and the like, particularly high hardness and wear resistance, basically keeps unchanged even at the temperature of 500 ℃, and still has high hardness at the temperature of 1000 ℃. YG8 is selected as the grade of hard alloy, and compared with the grade of the hard alloy, the grade of the hard alloy has higher impact toughness. The field simulation test leads to the conclusion that: the abrasion loss of the hard alloy in the simulation test process is very small, the abrasion loss of a roller is about 0.03mm, the abrasion loss of a shaft is about 0.12mm after 208 hours of continuous friction, (the shaft is subjected to unidirectional friction, so the abrasion loss is relatively large, and meanwhile, if the mounting direction of the shaft is changed, the service life of the shaft can be prolonged by 4 times). Calculated according to the abrasion loss of 0.5mm, the YG8 hard alloy roller can be concluded to have a service life at least reaching more than 30 days and meet the requirement of abrasion resistance. The conclusion is drawn by the impact resistance test: the YG8 cemented carbide has impact resistance that can meet the requirements of the on-site strip steel on irregular and non-periodic impact.

And (4) test conclusion: the YG8 hard alloy roller material can meet the field use requirement, and the YG8 hard alloy can be selected as the raw material for manufacturing.

The side guide plate is made of Q345, so that the side guide plate is easy to process and weld and low in manufacturing cost on the premise of ensuring the strength.

The roller, the wear-resistant ring and the shaft are made of hard alloy, the gap between the inner hole of the roller and the shaft is 0.08-0.13mm, and in the running process of the strip steel, the inner hole of the roller and the shaft are in sliding friction, but the outer diameter of the roller and the inner diameter of the roller are at the same rotating speed, so the linear speed is reduced to about 1/3 of the original linear speed. And the clearance caused by the abrasion of the inner diameter of the roller and the outer diameter of the shaft is increased, and the guiding precision is basically not influenced.

In the second embodiment, the distance between the two rollers is 1mm, and the distance between the rollers and the inner edge of the square groove is 1.5mm, so that the rollers are prevented from being blocked after deformation, and the requirement on sufficient compactness is met.

The thickness of the wear-resistant ring ensures that the upper part and the lower part of the roller have 0.5mm gaps with the inner edge of the square groove, and prevents the roller from being axially worn and deformed to damage the guide plate body.

The split elastic cylindrical pin (GB/T879.1-2000) is made of 65Mn, is easy to assemble and disassemble, and shortens the time for replacing spare parts.

Economic benefits are as follows: the service life of the disposable cycle can reach more than 30 days. In addition, the hard alloy roller and the shaft can be continuously recycled and reused, and can be completely used one by one according to the field condition. The roller, the shaft and the wear-resistant pad are only replaced during each overhaul, the split elastic cylindrical pin structure is easy to assemble and disassemble, 1-2 minutes is spent on disassembling and assembling one elastic pin, and the time for replacing spare parts is greatly shortened. The maintenance time is only once a month, and each time does not exceed 3 hours.

Because the rolling friction is generated between the roller and the strip steel in the running process, the phenomenon of flash and burr at the edge of the strip steel can not be caused completely, and the quality of the cold-rolled plate surface is improved.

The cost of per ton steel of the curled side guide plate of each iron and steel enterprise is generally between 0.4 and 0.7 yuan/ton. Taking a certain steel mill as an example, according to the condition that one rolling line is 450 ten thousand tons per year, the cost of each ton of steel is 0.4 yuan, the annual consumption is about 180 ten thousand yuan, after a roller side guide plate is changed, 2-3 lines are generally arranged in each steel mill, and 60-90 thousand yuan is saved each year. If the amount is 0.6-0.7 yuan/ton, the economic benefit is more remarkable.

Claims

1. A roller type inlet side guide plate mechanism for a crimping machine is characterized in that: contain crimping machine one and machine preceding rollgang, the rollgang is located the place ahead of crimping machine one before the machine, and the rollgang contains machine front side deflector (1) and entry rollgang (2) before the machine, and the both sides of entry rollgang (2) set up machine front side deflector (1) respectively, open side guide (1) bottom inboard has square groove (24) before the machine, sets up shaft hole (26) and sets up axle (19) on the machine front side deflector (1) of square groove (24) vertical direction, and axle (19) and gyro wheel (18) hole clearance fit assembly constitute roller device, and horizontal direction's pinhole (25) are seted up in machine front side deflector (1) of square groove (24) below, assembles division elasticity cylindric lock (21), holds axle (19), gyro wheel (18) lower extreme installation wear ring (20).

2. The roller-type entrance-side shoe guide mechanism for a crimper according to claim 1, wherein: more than one roller device is arranged on the square groove (24).

3. The roller-type entrance-side shoe guide mechanism for a crimper according to claim 1 or 2, characterized in that: the automatic crimping machine is characterized in that a second crimping machine (9) is arranged behind the first crimping machine (8), an on-machine conveying roller way is arranged between the first crimping machine (8) and the second crimping machine (9), the on-machine conveying roller way is the same as a front conveying roller way in structure, the on-machine conveying roller way comprises an on-machine side guide plate (7) and an inlet roller way second (6), the upper-machine side guide plate (7) is arranged on each of two sides of the inlet roller way second (6), and a roller device is arranged at the bottom of the on-machine side guide plate (7).

4. The roller-type entrance-side shoe guide mechanism for a crimper according to claim 3, wherein: the front side guide plates (1) are positioned on two sides of a rolling central line (14) and can move towards the rolling central line (14) simultaneously; the rolling central line (14) and the central lines of the front conveying roller way, the upper conveying roller way, the first crimping machine (8) and the second crimping machine (9) are positioned on the same vertical plane; two sides of the front side guide plate (1) of the machine are respectively provided with a first hydraulic cylinder (3), and the front side guide plate of the machine moves towards a rolling central line (14) to realize the centering and curling of strip steel on a front conveying roller way of the machine.

5. The roller-type entrance-side shoe guide mechanism for a crimper according to claim 4, wherein: the upper side guide plates (7) are positioned on two sides of a rolling central line (14) and can move towards the rolling central line (14) simultaneously; two sides of the guide plate (7) on the upper side of the machine are respectively provided with a second hydraulic cylinder (13), and the guide plate on the upper side of the machine moves towards a rolling central line (14), so that the strip steel on the conveying roller way on the machine is centered and curled.