CN87106736A

CN87106736A - Continuous casting billet shear

Info

Publication number: CN87106736A
Application number: CN198787106736A
Authority: CN
Inventors: 马克斯·阿伦斯; 曼弗雷德·海钖格; 科兹马·阿哈奇
Original assignee: Individual
Current assignee: Individual
Priority date: 1986-09-29
Filing date: 1987-09-28
Publication date: 1988-06-08
Also published as: JPS63180409A; EP0262899A3; BR8704939A; CA1279569C; EP0262899A2

Abstract

The improvement strand that is used for the Horizontal Casting system is cut a pair of hydraulic cylinder staggered relatively and a pair of inwards snip.Snip has many sides, causes in shear history in the foundry goods and shears, and foundry goods is pushed open in incision.

Description

The present invention is general relevant with continuous casting system, wherein has a microscler foundry goods to form, and concrete relevant Horizontal Casting system in casting process, regularly cuts into predetermined length with long foundry goods.

Continuous casting system is provided with a casting system, and there is the deposite metal or the alloy of an amount the inside, before casting, places it in heating in the stove shape structure that is called tundish, or puts into after the heat fused outside tundish.In most systems, furnace chamber has an outlet near the bottom, is connected with a cooling frame or casting mold by an aditus laryngis.Casting mold forms a microscler mold passage, is fit to form a long foundry goods, and casting mold constitutes an import and an outlet again.In addition, be provided with cooling device,,, form foundry goods in order that, make all or part of curing of deposite metal wherein with the sizable heat conduction in the deposite metal in the mold passage roughly around the mold passage.In the Horizontal Casting system, the downstream of casting mold and foundry goods cooler is provided with drive unit, to the foundry goods operation, regularly pulls out a part of foundry goods from the mold passage.This pulls out the part typical case and is called " casting stroke " to pull out the speed of foundry goods from cooling frame, and the cooling capacity and the foundry goods characteristic of pressing mold are selected.Because the heat in the foundry goods, along a segment length of foundry goods, still melt or partial melting at the foundry goods center.But certain a bit on, whole foundry goods solidifies, and is moved along the continuous roller that is commonly referred to as casting bed by the foundry goods transmission mechanism.When the foundry goods of making is thin foundry goods, during such as wire rod or minor diameter pole stock, may require with foundry goods on a big winding off spindle of casting bed end, enclose around.But when foundry goods is very big strand, diameter is very big can not maybe foundry goods should not be coiled the time, and then device that is called billet shear of continuous casting system operated by rotary motion is worked on foundry goods, regularly foundry goods is cut into predetermined length, is convenient to the strand transportation and deposits.The most frequently used strand is cut a pair of flat substantially sclerosis knife plate, and along on the siting of casting bed length, one is placed on above the foundry goods, and one below.Hydraulic means is handled on the scissors plate, the scissors plate is promoted in opposite directions the incision foundry goods.In most systems, shear knife plate and setover relatively, and move to the direction that aligns substantially, since pressurized by the angle edge of shearing knife plate from foundry goods by the lining, and produce the effect of shearing strand.

Though there is this billet shear of square shearing knife plate still to belong to successfully in use, the size of the foundry goods that can effectively shear at it is also restricted.Therefore, form in the Horizontal Casting system of big foundry goods, the power that the scissors machine is sheared this foundry goods to be needed is difficult to obtain, and uses cutting torch mechanism so the typical case relies on.

Therefore need a kind of improved billet shear in the art, can effectively shear large-sized foundry goods, its configuration can be used for the Horizontal Casting environment.

Therefore, general objects of the present invention is to propose a kind of improved Horizontal Casting system.The present invention is purpose more specifically, proposes a kind of improved billet shear that is used for the Horizontal Casting system, can shear the sizable foundry goods of diameter.

According to the present invention proposes a kind of Horizontal Casting billet shear, a pair of shear-blade is arranged, with the device that blade is installed in the relative both sides of strand to be cut.Respectively form an oblique cutting edge of acute angle on the snip, cutting edge has some, stretches out a predetermined distance, and have the face of a pair of pattern effect to be connected with the cutting edge face, and in the snip support, be provided with channel, snip is guided, there is hydraulic means on cutting edge, to act on, shearing force is provided.

It is believed that characteristics of the present invention have novelty, specifically narrate in the claims behind literary composition.The present invention and its other purposes and advantage are consulted hereinafter in conjunction with the narration of several width of cloth accompanying drawings, just can know understanding, similar components labeled among the figure, and accompanying drawing thes contents are as follows:

Fig. 1 is the simplification perspective by the improvement billet shear of the present invention's manufacturing;

The improvement billet shear side-looking of Fig. 2 for making by the present invention;

Fig. 3 is the forward sight by the improvement billet shear of the present invention's manufacturing;

Fig. 4 is billet shear of the present invention analysing and observe along Fig. 3 line 4-4;

Fig. 5 is billet shear of the present invention analysing and observe along Fig. 4 line 5-5;

Fig. 6 a and 6b are the simplified schematic of billet shear shear action of the present invention.

Fig. 1 shows the perspective of billet shear snip of the present invention and hydraulic cylinder, and dashed line view is represented its supporting device.Should understand Fig. 1 and be simplicity of illustration, be used for the basic running of cutter of the present invention is clearly understood.Can understand after the people who is familiar with this skill field observes all the other accompanying drawings, be to narrate conveniently, and many CONSTRUCTED SPECIFICATIONs of billet shear of the present invention all omit in Fig. 1.There is a pair of snip 1 and 12 to be placed on the upper and lower of strand 13.Snip 11 forms cutting edge 14, stretch downwards from the remainder of snip 11, and snip 12 forms the cutting edge 15 that extends upwardly.Observing Fig. 1 and other accompanying drawings can understand, and

snip

11 and 12 is basic identical, in trend with respect to the movable place of the snip that hereinafter describes in detail vertical plane, and minute surface video each other.Top shear blade supporting member 20 is arranged, snip 11 is installed above, form a dovetail groove joint 17 above the supporting member, snip 11 is fixed on the snip supporting member 20.There is one to go up hydraulic cylinder 24, is placed on the top of snip supporting 20, form tradition elongation hydraulic cylinder.Last hydraulic cylinder 24 also has a piston 30, and hydraulic cylinder 24 is connected with snip supporting member 20.According to conventional hydraulic pressure mechanism technology for making, in the hydraulic cylinder 24 conventional apparatus is arranged, be used for the pressurization hydraulic source is changed into the effect of an extending hydraulic cylinder.Similarly, snip supporting member 21 has snip 12 fixing with a dovetail groove joint 18 in the above, and it is similar to hydraulic cylinder 24 to be placed on structure, and has on the similar hydraulic cylinder 25 of piston 31.Hydraulic cylinder 25 is similar with hydraulic cylinder 24, and the device of traditional hydraulic control is arranged, and the confession source of pressurization hydraulic fluid is become the effect of tensile hydraulic cylinder.As the foundry goods 13 of waiting to cut horizontal continuous billet casting, between

snip

11 and 12, stretch.

On-stream, when microscler strand 13 suitable selected be placed on

snip

11 and 12 below, the method by hereinafter describing in detail pumps into

hydraulic cylinder

24 and 25 with hydraulic fluid with the hydraulic means (not shown), snip 11 is pressed on the foundry goods 13 is pushed downwards, and snip 12 is pressed on the downside of foundry goods 12 and is upwards pushed away.

Temporarily, the effect of being convenient to discuss

snip

11 and 12 is arranged referring to Fig. 6 a and 6b.Fig. 6 a shows when shear action begins, and when

snip

11 and 12 is compressed into foundry goods or strand 13

snip

11 and 12 configuration.The inclined plane 33 that snip 11 has cutting edge 14 and protrudes upward as inclined at acute angles from above.An additional facet 34 that explains orally below extends upwardly from face 33, cam surface of the bigger formation in angle of inclination, the shear action of subsidiary book invention billet shear.A vertical plane 35 extends upwardly from cutting edge 14, and an inclined plane 36 extends upwardly from face 35, forms one second cam surface on the snip 11.

Similarly, snip 12 has an inclined surface 40, stretches out from cutting edge 15, and a cam surface 41 is stretched out from face 40.The latter forms a cam surface similar to the surface 34 of snip 11.Snip 12 also forms a vertical plane 42, stretches downwards and a cam surface 43 from cutting edge 15, stretches downwards from vertical plane 42.Observing Fig. 6 a can see, with top described identical,

snip

11 and 12 structure are basic identical, and direction is opposite mutually.Also should notice, utilize the device hereinafter be described in detail from Fig. 6 a, with

snip

11 and 12 be placed on one with the vertical substantially common vertical plane of strand 13 in, it is arranged as cutting edge 14 and 15 parallel placements, roughly aligns mutually in a common vertical plane.In addition, should notice that

face

35 and 42 is placed in the common vertical plane consistent with

snip

11 and 12 free cheeks.

Fig. 6 b shows when

hydraulic cylinder

24 and 25 cutting strokes finish, snip 11 and 12 position.It should be noted that at this moment strand 13 is cut off fully, formed some

inclined surfaces

44,45,46 and 47 above.The

surface

35 and 42 contacts that also note that snip 11 and 12 are very tight, and cutting edge 14 and 15 overlap mutually, guarantee that strand 13 can cut-out fully in shear action.The inclined surface 34 of

snip

11 and 36 and the

inclined surface

41 and 43 of snip 12 produces the inclined surface 44 to 47 on the strand 13.An importance of the present invention, the

inclined surface

34,36,41 and 43 that is snip 11 and 12 provides a pattern effect to strand 13 in shear history, guarantee that the material of strand 13 has suitable gap, and make things convenient for the shearing operation of snip 11 and 12.An importance of the present invention is cutting edge 14 and 15, and the used traditional right angle face shear plate of cutter than having earlier in the skill field injects foundry goods 13 easily.

Fig. 2 shows the side-looking that is installed in the billet shear of the present invention on the casting bed 60, in traditional horizontal manufacturing technology, and the casting bed horizontal stretching, the stroke of fundamental sum foundry goods 13 is parallel.Also form among track 61 and 59(Fig. 3 clearer on the casting bed 60).Billet shear 10 has a pair of frame spare staggered relatively 22 and 23, with the truss 28 that is connected at the two.Truss 28 and put on the shelf 22 and undercarriage 23 form a compact rigid structure, surround casting bed 60,

track

61,59 and foundry goods 13.As mentioned above, a hydraulic cylinder 24 of making by conventional hydraulic cylinder technology known today is installed in upper bracket 22.There is the securing

member

50,51,52 and 53 of one group of quaternary on support 22, to install, extends upwardly, form the installed part of upper casing 26 from support 22.Upper casing 26, hydraulic cylinder 24 is tightly enclosed in the securing member 50 to 53 and 22 cooperations of putting on the shelf, and itself and truss 28 is fixing.Undercarriage 23 has the securing member 55 to 58 of one group of quaternary equally, from undercarriage 23 stretch downwards and lower casing 27 fixing.Other similarities are trapped among hydraulic cylinder 25 between undercarriage 23 and the lower casing 27 for securing member 55 to 58.So far, the structure of extreme rigidity is arranged in the billet shear of the present invention, a pair of hydraulic cylinder up and down staggered relatively is arranged.An importance of the present invention is to form a groove 70 in truss 28 the insides, holds the end of

snip

11 and 12, and it is movable in vertical plane to be provided with a guide groove facility.Therefore, there have among one second snip groove 72(Fig. 4 to be more clear), position and structure are suitable with groove 70, hold the end in addition of snip 11 and 12.Groove 70 and 72 cooperates, and restriction snip 11 and 12 is under the application of force of

hydraulic cylinder

24 and 25, and it is vertical movable only to do in a plane.Say that simply in shear history of the present invention,

groove

70 and 72 guarantees snip 11 and 12, and the relative motion that provides 6a and 6b to illustrate is provided in a common vertical plane.

Billet shear 10 also has the side of a wheel carrier 63 at truss 28, and is the most clear among wheel carrier 73(Fig. 3) in the side in addition of truss 28.A pair of

traditional axle

68 and 69 is arranged, a side from the truss 28 to overhanging, from wheel carrier 63, pass, and the similar axle 71 and 74 of another group, overhanging and wheel carrier 73 is fixing from the side direction in addition of truss 28.The roller 64 to 67 of a four-tuple is installed on the

axle

68,69,71 and 74 and the

track

61 and 59 of casting bed 60 aligns, in the above walking.Therefore, an importance of the present invention is that billet shear 10

usefulness tracks

61 and 59 are supported to make rolling, with respect to the track action.

Referring again to Fig. 6 a, should be able to note stretching at

hydraulic cylinder

24 and 25, trigger when shearing running, snip 11 and 12 injects strand 13, begins its cut-out.The people who is familiar with this skill field will understand that, in case snip 11 and 12 begins to cut off strand 13, is just clamped by the material of strand 13, because the above-mentioned action of strand gives

snip

11 and 12 1 side forces.Therefore, when

hydraulic cylinder

24 and 25 continues snip 11 and 12 is pushed, from foundry goods 13, pass through.

Hydraulic cylinder

24 and 25 elongation, when making

snip

11 and 12 go deep into strand 13, shear action inwards continues.Cut off in the process of strands 13 at

snip

11 and 12, strand cuts 10 along being directed downwards of advancing of strand 13 mobile (among Fig. 2 right-hand), finishes up to the running of the shearing shown in Fig. 6

b.So snip

11 and 12 is got back on the going-back position that Fig. 2 shows, foundry goods 13 continues to pass through from strand is cut passage 10.In addition, be provided with device and strand is cut 10 get back to (left among Fig. 2) on the home position, strand cut 10 just right here waiting next shear the beginnings of running.

Fig. 4 shows that strand of the present invention cuts analysing and observe along 4-4 line among Fig. 3.As seen

hydraulic cylinder

24 and 25 is installed in the upper and lower of foundry goods 13 respectively.Hydraulic cylinder 24 has piston 30, is connected with snip supporting member 20, and hydraulic cylinder 25 has piston 31, is connected with snip supporting member 21.

Diagram snip

11 and 12 is positioned on the position that retreats in groove 72.Foundry goods 13 is cut 10 from strand and is passed through, and a pair of cooled guide spare 80 and 81 in cutting is respectively in the upper and lower support of foundry goods 13.Cooled guide spare 80 has a lateral support surfaces 82, cuts 10 downstream at strand, and cooled guide spare 81 has lateral support surfaces 83, cuts 10 upstream side at strand.An important aspect of the present invention is area supported 82 and 83, supports foundry goods 13 in shearing operation, assists the compensatory shear operation to give the distortion power of foundry goods 13.

The analysing and observe that strand of the present invention is cut in Fig. 5 diagrammatic sketch 4 along the 5-5 line.An importance of the present invention is that snip groove 70 has a pair of

trapezoidal voussoir

90 and 91, and is fixing on truss 28 with a pair of

conventional fastener

94 and 95 respectively.Groove 72 has the

voussoir

92 and 93 of a pair of trapezoid cross section too, and is fixing on truss 28 with a pair of traditional securing

member

96 and 97 respectively.An importance of the present invention is that wedge 90 to 93 can make and can regulate the groove of

snip

11 and 12 guiding with respect to truss 28 activities.

Though shown in and described be particular of the present invention, and the people who is familiar with this skill field is obviously as seen, can make variations and modifications, and does not break away from broad scope of the present invention.Therefore, the purpose of the claims behind the literary composition is to comprise that all these meet the variation and the modification of connotation of the present invention and scope.

Claims

1, a kind of improvement strand that is used for Horizontal Casting is cut, and has a microscler strand to form continuously in the casting process, and makes it to move along the casting bed of an elongation, has following during strand is cut:

Housing has the device of supporting housing, is placed in the strand conduct near the point this strand;

First and second hydraulic cylinder is installed in the upper and lower of this strand in this housing;

A pair of snip is installed on this two hydraulic cylinder, respectively has cutting edge to be placed on the upper and lower of this strand;

This snip has a multi-sided cross section, and a pair of pattern action face staggered relatively is arranged, and is protruding from this cutting edge;

There is device on this hydraulic cylinder, to act on, makes this hydraulic cylinder promote this snip, cut off this strand, the cut-out of strand takes place.