CN201295793Y - Pass shears used for shearing machine and guiding device thereof - Google Patents

Pass shears used for shearing machine and guiding device thereof Download PDF

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Publication number
CN201295793Y
CN201295793Y CNU2008201590631U CN200820159063U CN201295793Y CN 201295793 Y CN201295793 Y CN 201295793Y CN U2008201590631 U CNU2008201590631 U CN U2008201590631U CN 200820159063 U CN200820159063 U CN 200820159063U CN 201295793 Y CN201295793 Y CN 201295793Y
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CN
China
Prior art keywords
pass
guiding device
cut
shearing machine
scissor blade
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Expired - Fee Related
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CNU2008201590631U
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Chinese (zh)
Inventor
赵解来
孙一峰
孟剑飞
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Hunan Hualing Xiangtan Iron and Steel Co Ltd
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Hunan Hualing Xiangtan Iron and Steel Co Ltd
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Priority to CNU2008201590631U priority Critical patent/CN201295793Y/en
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Abstract

A pair of pass shears used for a shearing machine and a guiding device thereof mainly aim to solve the technical problem that the use of the prior pass shears in the extrusion results in overflow of red steel towards the two sides of a flat shear blade, and the end part is deformed into a hoof shape and props up a guide, thereby causing the steel piling-up phenomenon. The technical scheme adopted by the utility model has points as follows: a first shearing machine installed on a continuous rolling line is mounted between a 3H rolling mill and a 4H rolling mill; the pass shears are mounted on first flying shears; the pass diameters of a lower shear blade and an upper shear blade mounted on the pass shears on a coordination basis are of an arc shape smaller than a semicircle and are 2-4 mm larger than the diameter of supplied material steel; the guiding device is matched with and mounted at the front parts of the pass shears; a groove is formed on the guiding device; and the width of the rear end of the groove on the guiding device is smaller than that of the front end of the groove on the guiding device. The guiding device can enable supplied material red steel to enter pass shear blades smoothly, remarkably reduce the ovality of sheared edges, and greatly improve shearing effect. The installation of the guiding device provides an effective assurance for the use of the pass shear blades.

Description

The pass that is used for shearing machine is cut and guiding device
Technical field
The utility model relates to a kind of shearing machine, and particularly a kind of pass that is used for shearing machine is cut and guiding device.
Background technology
At present, on the bar factory tandem rolling line of iron company 3 flying shears are installed generally, 1# flying shear (as FQ-34 type shearing machine) is installed between 3H milling train and the 4H milling train, and the 2# flying shear is installed between 7H milling train and the 8H milling train, and the 3# flying shear is installed in after the finished frame.1# flying shear (as FQ-34 type shearing machine) mainly has been crop and the cataclasm effect of accident.Because of all can there be distortion, the elbow in various degree and the steel that rots in the red steel toe portion from breaking down 650 milling trains come out after, the frame that must after the FQ-34 shearing machine is sheared the head of certain-length, just can enter the back, if do not shear, the red steel that these heads have distortion, elbow, mashed steel causes the heap steel when entering rolling mill guiding.What domestic manufacturer adopted substantially at present is the straight snips sword, the cutting edge of straight snips sword is flat, simplicity of design, drift to red steel is not strict, but the straight snips sword is sheared the quality that the end is sheared and is had serious defective, because in shear history, the temperature of red steel is about 950 ℃, relatively at normal temperatures, hardness is lower, on, following straight snips sword when shearing just to red steel from, following both direction pushes, red steel will be to the overflow of the both sides of straight snips sword in extrusion process, cause the end distortion, produce horse-hof shape, but the horse-hof shape workpiece front end is when entering tandem rolling, easily the top guide and guard cause the heap steel, production is caused serious restriction, thereby influence rhythm of production, reduced lumber recovery, equipment has also been caused certain destruction.
Summary of the invention
For solving this knotty problem, must improve the end shear effect of 1# flying shear, improve the ovality that the 1# flying shear is sheared back red steel toe portion.For improving red steel end shear effect, improve the end ovality, use the straight snips sword to be difficult to be effective.For solving the problem of end distortion, the utility model is at first considered to adopt pass to cut, and makes it effectively to avoid the generation of this end metaboly, because the pass cutting edge is in shear history, the whole circular position of cutting edge all can produce extruding to red steel, overflow can not take place from both sides produce distortion; And pass is cut and can be improved shear effect greatly.But the centering that pass is cut the red steel of supplied materials requires very high, because the pass size is certain, some drifts take place to take place slightly as arnotto steel toe portion, just can not enter pass, heap steel accident just takes place easily, therefore must pass is cut before, design guiding device, guarantee that red steel accurately enters very necessity of pass that pass cuts.
The purpose of this utility model provides a kind ofly to be avoided or reduces that the windrow phenomenon takes place and the pass that is used for shearing machine of increasing work efficiency is cut and guiding device.
The technical scheme that its technical problem that solves the utility model adopts is: first bench shears that is installed on the tandem rolling line is installed between 3H milling train and the 4H milling train, pass is installed on first flying shear to be cut, pass is cut the lower scissor blade 1 of the installation that cooperatively interacts and the pass diameter of upper scissor blade 2 is the arc structure less than semicircle, and its diameter cooperates assembly guiding structure 9 greater than supplied materials steel diameter 2-4mm in the front portion that pass is cut.Described lower scissor blade 1 and upper scissor blade 2 mating part outer ends are set to arc cutting edge 3.
2 one-tenth secure fit of lower scissor blade 1 described in the utility model and upper scissor blade are installed on the tool rest 4, and tool rest 4 is provided with backstop groove 5, and lower scissor blade 1 and upper scissor blade 2 are installed in respectively in the backstop groove 5.
The utility model also can make lower scissor blade 1 and upper scissor blade 2 become matched in clearance to be installed in the backstop groove 5 respectively, or cooperates between lower scissor blade 1 and upper scissor blade 2 and backstop groove 5 underlay and side pad are installed.
The utility model also can be provided with groove by described guiding device 9, and the width of guiding device groove rear end 10 is less than the width of the recessed front end 11 of guiding device.Also can cooperate in the rear end of described guiding device 9 running roller 6 is installed, the waist of running roller 6 is provided with running roller groove 7.Or described running roller groove 7 is provided with wearing layer.
The utility model also can guiding device 9 be provided with running roller groove 7 on the cooling water flusher that matches.Or be provided with turning device 8 at the rear portion of guiding device 9.Also can make between lower scissor blade 1 that cooperate to install and the upper scissor blade 2 and be provided with intersection.
The beneficial effects of the utility model are: utilize original guide groove with the test of pass cutting edge input under the situation that does not have new guiding device, test is divided into three aspects: the one, and crop test, the 2nd, back-end crop test, the 3rd, the cataclasm test of accident.In crop and back-end crop test, the red steel of supplied materials can enter the pass cutting edge smoothly, and the ovality of sheared edge obviously reduces, and the end deformation length also significantly reduces, and shear effect is significantly improved.In the cataclasm test of accident, abnormal red steel also can enter pass smoothly, and the phenomenon that red steel bump pass cutting edge or red steel fly out does not take place.After guiding device manufactures and designs successfully before the pass cutting edge, pass cut with guiding device supporting carried out complete test, test has this time not only reached the shear effect of test last time, and the red steel toe of supplied materials portion is elegant considerably less, can enter the pass cutting edge accurately.The installation of guiding device is for the use of pass cutting edge provides effective guarantee.The test data contrast is as follows:
End face (length direction deformation length) Surface (length direction) cut End product quality (ears or side handles of a utensil and folding length)
Before the transformation 20-25mm Article 2 to 3, 150-400mm
After the transformation 2-3mm Do not have 50-100mm
The heap steel accident (monthly) that causes by shearing Adjust the time (monthly) by the maintenance that shearing causes The spare parts consumption expense (monthly) that causes by shearing
Before the transformation 8 times 4h30min 10500 yuan
After the transformation 0.5 it is inferior 30min 2500 yuan
Hence one can see that, and the utility model has mainly solved the problem of the following aspects: the one, improve steel cutting end face and surface quality, and improve lumber recovery, avoid scratching.The 2nd, reduce the generation of heap steel accident, reduce time of casualty.The 3rd, reduce repair time and spare parts consumption expense.
Description of drawings
Fig. 1 is that shearing machine pass of the present utility model is cut the pass structure schematic diagram
Fig. 2 is that lower pass is sheared the registration structural representation on the shearing machine of the present utility model
Fig. 3 is that lower pass is sheared anti-interference structure schematic diagram on the shearing machine of the present utility model.
Fig. 4 is that shearing machine pass of the present utility model is cut sideshake, registration adjusting device structural representation.
Fig. 5 is a guiding device running roller structural representation before shearing machine pass of the present utility model is cut.
Fig. 6 is the left TV structure schematic diagram of Fig. 5.
Fig. 7 is that shearing machine pass of the present utility model is cut guiding device and antiwear device structure chart.
Fig. 8 is the right TV structure schematic diagram of Fig. 7.
Fig. 9 is the plan structure schematic diagram of Fig. 7.
Among the figure: the 1-lower scissor blade, the 2-upper scissor blade, the last lower scissor blade relative direction of 3-is the arc cutting edge, 4-tool rest, 5-backstop groove, 6-running roller, 7-running roller groove, 8-turning device, 9-guiding device, 10-guiding device groove rear end, 11-guiding device groove front end.
The specific embodiment
That the utility model is described in further detail is as follows below in conjunction with drawings and Examples:
One, the design of each parameter of pass cutting edge pass described in the utility model:
The one, the design of pass size: the design of pass cutting edge must be based on the size of shearing the red steel external diameter of supplied materials.At present, the red steel diameter that comes out from the 3H milling train is greatly within the 55-60mm scope, so the pass minimum diameter that pass is cut designs on the basis based on 60mm, but can not just in time be 60mm, if just be 60mm or the phenomenon that will cause steel-fastening less than 60mm easily, be exactly the red steel of supplied materials be sheared be over after, head can be bonded in the pass cutting edge, be not easy to withdraw from, centering to the red steel of supplied materials requires also very high in addition, therefore the pass minimum diameter should be more bigger than 60mm, but the pass diameter can not be excessive, if diameter is excessive, shearing quality does not just reach requirement, red steel will produce horse-hof shape to the both sides overflow under the extruding of last lower scissor blade, therefore passes through test of many times, the diameter of pass can strengthen 2-4mm on the basis of the red steel diameter of supplied materials the most suitable, be unified cutting edge pass size, reduce the cutting edge Parts Inventory and change number of times that the pass minimum diameter is unified to be 62mm.Consult Fig. 1.
The 2nd, the design of pass cutting edge mouth extreme lower position: go up lower pass and cut when vertical position, when just being in clipped position, position, the end of last lower pass cutting edge mouth should be just to overlap and certain registration arranged, according to test of many times, reach a conclusion is that registration is that 2-4mm is proper, determine that now registration is 2mm, at this moment the cutting edge height of cutting edge extreme lower position is 96mm.Consult Fig. 2.
The 3rd, the design of pass cutting edge mouth opening degree: it is not a semicircle that pass is cut pass, there are 2 meters far away because export to 1# flying shear blade position from 3H, red steel comes to drift about, if semicircle, it is very high that red steel enters the pass precision prescribed, if skew is arranged slightly, red steel toe portion just may hit on cutting edge, therefore on the semicircle basis of pass, extension to be arranged, the opening of pass is greater than the diameter of pass cutting edge basic circle, and such advantage is: the one, and red steel is easy to enter pass, even a bit be offset the situation that also can not hit cutting edge, the 2nd, on, lower scissor blade can play the effect of automatic capturing to red steel in closing course.Opening degree is excessive if depth of groove is more shallow, influences shear effect though red steel enters pass easily.Therefore, guaranteeing to prolong on the gradient certain basis of pass both sides the opening degree that height that pass cuts can increase pass cutting edge mouth as far as possible.But the height that pass is cut can not be too high, and pass is cut platform when rotating a circle shearing, and two cutting edges can interfere collision, and therefore by the track experiment, the height that pass is cut can reach 165mm, is equivalent to depth of groove 69mm, and the opening degree of cutting edge can reach 110mm.The red steel of supplied materials has just begun to be equivalent to enter the hole of a diameter 110mm when entering pass and shear, carry out rapidly under the extruding of last lower scissor blade along the pass both sides then shearing bottom the pass, the automatic capturing effect of Here it is pass cutting edge.Consult Fig. 3.
The 4th, pass is cut the anti-design of interfering: upper and lower amphithyrid is cut because the extension of pass position is longer, and the cutting edge cutter hub interferes when rotated easily, for avoiding interfering, must improve the pass extending part.Because when shearing, what really play shear action is that diameter is the circular arc position of 62mm, other extending part does not play shear action, just the red steel of supplied materials is played automatic capturing, therefore can be optimized design to it.The easiest position that interferes is the top of pass cutting edge, therefore is designed to arc in the aspectant direction of tip position two cutting edges, can increase the gap between the two cutting edge tops, the actual gap when not influencing the cutting edge shearing.Consult Fig. 4.
The 5th, pass is cut the design of gap and registration adjusting device: at first be that design has the stop groove on the cutting edge tool rest, make upper and lower two blade clearances easy to adjust, safe, reliable, guarantee the reliability that cutting edge is installed, be not easy to withdraw from loosening.Be the design of optimizing cutting edge in addition, design in cutting edge and tool rest contact site certain adjustment surplus is arranged in case with the cushioning adjusting play.In addition, the bolting hole of cutting edge is designed to ellipse, so that the adjustment of cutting edge on above-below direction.The registration of cutting edge and the adjustment of sideshake can come rapid adjustment by cushioning.Consult Fig. 5.
Two, FQ-34 shearing machine pass is cut the design of preceding guiding device:
Owing on the FQ-34 shearing machine, use the pass cutting edge, therefore very high to the centering status requirement of the red steel of supplied materials, excessive if drift takes place the head of the red steel of supplied materials, the pass that will fly out is cut, generation is to the accident of steel, therefore design and produce pass cut before guiding device be the guarantee that pass is cut safe handling.
The one, guiding device opening degree design: guiding device is that the pass that the red steel with 3H milling train outlet guide is directed to shearing machine is smoothly cut, the distance of cutting the center of clipped position from 3H outlet guide to pass has 2000mm, because cutting edge cutter hub when shearing easily rotates, therefore, the Design of length of guiding device is that 1850mm is proper, for the red steel of supplied materials can enter the pass that pass is cut smoothly, and it is elegant less to guarantee that red steel makes it to take place when entering pass and cut as far as possible, so guiding device is designed to tapered, as the front end at guiding device is that the A/F of arrival end is designed to 280mm, to guarantee that red steel can enter guiding device smoothly, be that the A/F of the port of export is designed to 75mm in the rear end of guiding device.At this moment, red steel toe portion just can be smoothly from guiding device come out and take place elegant very little.Consult Fig. 7 to Fig. 9.
The 2nd, the wear-resisting design of guiding device: the weakest link of guiding device is that wearing and tearing cause the rolled piece surface scratch easily, and the steel plate that is worn is changed very difficulty, do not increase if do not change the exit width that will cause guiding device, having increased red steel is the drift amplitude of rolled piece.For solving this difficult problem, at first be that the material of reply guiding device is selected, because the temperature of red steel when the guiding device be about 950 ℃, the both sides of guiding device and the material of bottom must be selected the high-temperature wearable material.In addition, be to improve the rolled piece surface quality, reduce the scuffing of rolled piece at the guide groove inwall, simultaneously also for the wearing and tearing of stopping guiding device design roller apparatus, promptly from running roller of the outlet 100mm of guiding device place's design and installation, running roller becomes the U type.Consult Fig. 8.Running roller is installed in the exit of guiding device, and wherein roll surface is higher than the about 5mm in guiding device bottom surface, and to reduce the wearing and tearing of red steel and guiding device bottom surface, running roller can adopt free roller, and need not to drive.Consult Fig. 7 to 9.In addition, also can make the two sides of the flange protrusion guiding device of running roller, but two sides can not be protruded in the flange extreme higher position, can reduce the wearing and tearing of red steel and guiding device like this, also can not cause the collision of red steel and running roller flange.Simultaneously, be maintenance and the maintenance that makes things convenient for running roller, also the exit portion of guiding device can be designed to turning device; For improving the working environment of running roller, improve the service life of running roller and bearing, and prevent that iron scale is fallen into and the kayser running roller in normal productive process, we can be below running roller design and installation cooling water pipe with pressure, so that running roller is cooled off, and in time wash away iron scale and prevent iron oxide pick up running roller.
Design important parameter of the present utility model gathers and is pass minimum diameter: 62mm, cutting edge registration: 2mm, cutting edge circular arc A/F: 110mm, cutting edge appearance and size: 200*150*50, cutting edge hardness: HRC55 1, cutting edge material: XD-1.Cutting edge side clearance: 1.0-1.5mm, guide groove length overall 1850mm, entry guide width 280mm, guide groove exit width 75mm, running roller roll surface extreme lower position is higher than guide groove bottom surface 5mm.

Claims (10)

1, a kind of pass that is used for shearing machine that is used for shearing machine is cut and guiding device, first bench shears that is installed on the tandem rolling line is installed between 3H milling train and the 4H milling train, pass is installed on first flying shear to be cut, it is characterized in that: pass is cut the lower scissor blade (1) of the installation that cooperatively interacts and the pass diameter of upper scissor blade (2) is the arc structure less than semicircle, and its diameter cooperates assembly guiding structure (9) greater than supplied materials steel diameter 2-4mm in the front portion that pass is cut.
2, the pass that is used for shearing machine according to claim 1 is cut and guiding device, it is characterized in that: described lower scissor blade (1) and upper scissor blade (2) mating part outer end are set to arc cutting edge (3).
3, the pass that is used for shearing machine according to claim 1 is cut and guiding device, it is characterized in that: described lower scissor blade (1) becomes secure fit to be installed on the tool rest (4) with upper scissor blade (2), tool rest (4) is provided with backstop groove (5), and lower scissor blade (1) and upper scissor blade (2) are installed in respectively in the backstop groove (5).
4, the pass that is used for shearing machine according to claim 3 is cut and guiding device, it is characterized in that: described lower scissor blade (1) becomes matched in clearance to be installed in the backstop groove (5) respectively with upper scissor blade (2), or cooperates between lower scissor blade (1) and upper scissor blade (2) and backstop groove (5) underlay and side pad are installed.
5, the pass that is used for shearing machine according to claim 1 is cut and guiding device, it is characterized in that: described guiding device (9) is provided with groove, and the width of guiding device groove rear end (10) is less than the width of the recessed front end of guiding device (11).
6, the pass that is used for shearing machine according to claim 1 is cut and guiding device, it is characterized in that: the rear end cooperation of described guiding device (9) is equipped with running roller (6), and the waist of running roller (6) is provided with running roller groove (7).
7, the pass that is used for shearing machine according to claim 6 is cut and guiding device, it is characterized in that: described running roller groove (7) is provided with wearing layer.
8, the pass that is used for shearing machine according to claim 6 is cut and guiding device, it is characterized in that: guiding device (9) be provided with running roller groove (7) on the cooling water flusher that matches.
9, the pass that is used for shearing machine according to claim 1 is cut and guiding device, it is characterized in that: the rear portion of described guiding device (9) is provided with turning device (8).
10, the pass that is used for shearing machine according to claim 1 is cut and guiding device, it is characterized in that: be provided with intersection between lower scissor blade (1) that described cooperation is installed and the upper scissor blade (2).
CNU2008201590631U 2008-11-07 2008-11-07 Pass shears used for shearing machine and guiding device thereof Expired - Fee Related CN201295793Y (en)

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CNU2008201590631U CN201295793Y (en) 2008-11-07 2008-11-07 Pass shears used for shearing machine and guiding device thereof

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Application Number Priority Date Filing Date Title
CNU2008201590631U CN201295793Y (en) 2008-11-07 2008-11-07 Pass shears used for shearing machine and guiding device thereof

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103212590A (en) * 2013-01-23 2013-07-24 太仓力达莱特精密工业有限公司 Pile-up prevention flower stand liner plate for rolling steel
CN109090192A (en) * 2018-09-29 2018-12-28 佛山市奥楷机械科技有限公司 A kind of sausage shear
CN112692079A (en) * 2020-12-08 2021-04-23 上海呈彧智能科技有限公司 Bar production line servo steel distributing and dredging method and system based on machine vision

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103212590A (en) * 2013-01-23 2013-07-24 太仓力达莱特精密工业有限公司 Pile-up prevention flower stand liner plate for rolling steel
CN109090192A (en) * 2018-09-29 2018-12-28 佛山市奥楷机械科技有限公司 A kind of sausage shear
CN112692079A (en) * 2020-12-08 2021-04-23 上海呈彧智能科技有限公司 Bar production line servo steel distributing and dredging method and system based on machine vision
CN112692079B (en) * 2020-12-08 2022-07-01 上海呈彧智能科技有限公司 Bar production line servo steel distributing and dredging method and system based on machine vision

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090826

Termination date: 20161107

CF01 Termination of patent right due to non-payment of annual fee