CN103372634A - Mold variable device of continuous casting apparatus - Google Patents
Mold variable device of continuous casting apparatus Download PDFInfo
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- CN103372634A CN103372634A CN2013101330517A CN201310133051A CN103372634A CN 103372634 A CN103372634 A CN 103372634A CN 2013101330517 A CN2013101330517 A CN 2013101330517A CN 201310133051 A CN201310133051 A CN 201310133051A CN 103372634 A CN103372634 A CN 103372634A
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Abstract
Disclosed is a mold variable device of a continuous casting apparatus. Connection rods (53, 55, 57) are respectively arranged in a swing manner at the fixed fulcrum (52) of a pedestral, the first movable fulcrum (53) arranged on the support component (30) of a short side casting part and a second movable fulcrum (56) arranged on a movable side long side casting part (41). The front end of the connecton rod (55) and the front end of the connection rod (57) are respectively connected with the third movable fulcrum (58) and the fourth movable fulcrum (59) in a swing manner. The distance between the fixed fulcrum and the third movable fulcrum is 1/2 of the distance from the fixed fulcrum to the fourth movable fulcrum. Thereby, when the movable side long side casting part moves, the support component moves in a linked manner, the movement amount is 1/2 of the movement amount of the movable side long side casting component, thereby automatic core adjustment is achieved. Short side core adjustment process is reduced, and casting replacement time is obviously shortened.
Description
Technical field
The present invention relates in the continuous casting equipment to be used for the mold variset of size (thickness of slab) in the cross section of change slab, especially relate to the mold variset of the continuous casting equipment of the central authorities that the bearing position of short brink mold can be maintained its width (slab thickness direction).
Background technology
The molten steel that utilizes converter to carry out the refining gained is stored in casting ladle and carries towards continuous casting equipment, and be injected in the mold of continuous casting equipment, this molten steel cools off in this mold and forms solidified shell at periphery, then, contain in inside under the state of molten steel from the bottom of mold towards below pull out and do not solidify slab, in the roller zone (zone) that comprises a plurality of rollers this not being solidified slab supports, and make its further cooling from the nozzle ejection cooling water, after solidifying fully, with the suitable length interval on the long side direction its cut-out is formed slab.Like this, in continuous casting equipment, molten steel is injected in the mold continuously, this molten steel solidifies continuously and forms slab.
In this continuous casting equipment, mold is made of copper coin usually, and is tabular but slab forms usually, and the cross section of slab forms rectangle, comprises so mold constitutes: contact with the face of the long side of slab and to its long limit copper coin that cools off; And contact with the face of the short brink of slab and to its minor face copper coin that cools off, and a pair of long limit copper coin is configured to opposite one another, between these long limit copper coins, the pair of short edges copper coin is configured to opposite one another, thereby casts the rectangular slab of Formation cross-section by molten steel being injected into by the zone of these long limit copper coins and the encirclement of minor face copper coin.
And, in existing mold, can from accordingly the minor face copper coin is replaced by the different copper coin of bond length (patent documentation 1(Japan real open flat 6-5742 communique) and patent documentation 2(Japanese kokai publication hei 5-245590 communique as the cross sectional shape of the slab of foudry line)).That is, in above-mentioned these prior aries, by changing the interval between the copper coin of long limit and between this length limit copper coin, changing the different copper coin of configuration bond length, can change the thickness of slab.
Fig. 9 is the top view that the existing operation of the minor face copper coin of changing mold for the thickness that changes slab is shown.Shown in Fig. 9 (a), a pair of long limit copper coin 1a, 1b be arranged opposite abreast, pair of short edges copper coin 2a, 2b arranged opposite abreast between these long limit copper coin 1a, 1b.Be fixed with respectively long limit water tank 3a, 3b to the internal feed cooling water in the behind of long limit copper coin 1a, 1b in the mode that contact with long limit copper coin 1a, 1b, described long limit water tank 3a, 3b cool off growing limit copper coin 1a, 1b respectively.In addition, also be fixed with respectively minor face water tank 4a, 4b to the internal feed cooling water in the mode that contacts with minor face copper coin 2a, 2b in the behind of minor face copper coin 2a, 2b, described minor face water tank 4a, 4b cool off minor face copper coin 2a, 2b respectively.And then, axle (spindle) 6a, 6b be so that its bar flatly is arranged at the behind of each minor face water tank 4a, 4b towards the mode of minor face water tank 4a, 4b with described bar respectively, and support plate 5a, the 5b of front end that is arranged at the bar of this axle 6a, 6b links with minor face water tank 4a, 4b respectively.Thus, pass in and out by the bar that makes axle 6a, 6b and to dodge movement, can adjust minor face copper coin 2a, 2b on the slab width the position and change interval between the minor face copper coin, thereby can change the slab width.In addition, retreat by the bar that makes axle 6a, 6b, can change minor face copper coin 2a, 2b and minor face water tank 5a, 5b.In addition, long limit copper coin 1b and the long limit water tank 3b (F(Fixed that is fixed, fix) the side mold), long limit copper coin 1a and long limit water tank 3a can be to move (L(Loose, freely) side mold) with respect to long limit copper coin 1b and the approaching mode of separating of long limit water tank 3b.In addition, in Fig. 9 (a), the thickness of slab is t, the thickness central portion of support plate 5a, the 5b supporting slab of axle 6a, 6b.
On the other hand, in the process of casting, when carrying out the thickness change of mold in order to cast thicker slab, at first, shown in Fig. 9 (b), make the long limit copper coin 1a of L side and grow limit water tank 3a to retreat with respect to the long limit copper coin 1b of F side and long limit water tank 3b, pull down minor face water tank 4a, 4b from support plate 5a, 5b, and minor face copper coin and minor face water tank are replaced by minor face copper coin 7a, 7b and minor face water tank 8a, the 8b that the length on the slab thickness direction is grown.Under this state, because the change of the width of mold does not change with the position of (change of slab width is used) axle 6a, 6b, therefore supporting the interval that center and the F side of bearing position of support plate 5a, the 5b of minor face water tank 8a, 8b grow between the copper coin 1b of limit still keeps t/2 constant, and the interval between the long limit copper coin 1a of the center of the bearing position of support plate 5a, 5b and L side becomes T-t/2, thereby so that the center deviation of described bearing position to the F side.Therefore, when when pouring molten steel is in the mold, the static pressure of molten steel so that the part of the L side of minor face copper coin 7a, 7b centered by the bearing position center of deflection F side and the direction of opening wide more significantly than the part of F side acts on minor face copper coin 7a, 7b.So, because forming uneven load with respect to the biasing at center, and because making width change cardan shaft 6a, 6b, this uneven load produces strain, minor face copper coin 7a, 7b tilt towards opposite directions when causing overlooking observation, so that engaging-in surface to long limit copper coin 1a, 1b, the bight of minor face copper coin 7a, 7b, thereby may make the surface of long limit copper coin 1a, 1b produce flaw.
Therefore, shown in Fig. 9 (c), in the situation of change mold thickness, need to carry out minor face and transfer core.Namely, shown in Fig. 9 (c), by making the long limit copper coin 1a of L side and long limit water tank 3a retreat the interval that enlarges between long limit copper coin 1a, the 1b, and then to make width change axle 6a, 6b move to apart from the distance of the long limit copper coin 1b of F side be the position of T/2, thereby it is consistent with the center of minor face copper coin 7a, 7b to make support plate 5a, 5b support the position of the position of minor face water tank 8a, 8b and axle 6a, 6b.Under this state, long limit copper coin 1a is moved to long limit copper coin 1b, utilize long limit copper coin 1a, 1b to come clamping minor face copper coin 7a, 7b, thereby be assembled into the mold with the rectangular casting space in cross section by long limit copper coin 1a, 1b and minor face copper coin 7a, 7b.Thus, can access the mold of having implemented minor face accent core.
Yet, the mold minor face core adjusting device of the prior art there are the following problems point: be to comprise that the minor face of screw jack, motor, decelerator and position detector etc. transfers the core drive unit as its special-purpose drive unit pattern of wants, expensive thereby equipment price becomes.
In addition, a series of flow charts of mold thickness change there are the following problems point: the replacing that need to carry out continuously minor face copper coin and minor face water tank with transfer the core operation, thereby so that the time of mold thickness change operation lengthen.In the continuous casting operation, change this minor face copper coin and minor face water tank and transfer the core operation although temporarily stop the cast (pulling out of slab) of molten steel under the state within slab is present in continuous casting equipment, but the continuous casting operation is to continue to carry out in 24 hours, thereby more long-living productive rate of the time that stops during this period is poorer.Minor face transfers the core operation usually to need about 10 minutes, transfers the shortening of core activity duration even realized minor face, only also can effectively not realize whereby the mold shortening of change activity duration.
Summary of the invention
The object of the present invention is to provide a kind of mold variset of continuous casting equipment, can subdue minor face and transfer the core flow chart, thereby can significantly shorten the mold change activity duration.
The mold variset of continuous casting equipment involved in the present invention is characterised in that the mold variset of described continuous casting equipment has:
The long limit of fixation side casting die part, the long limit of this fixation side casting die part cools off a side's of slab long side face;
The long limit of drawer at movable side casting die part, the long limit casting die part of this drawer at movable side is grown limit casting die part arranged opposite with this fixation side, and the opposing party's of slab long side face is cooled off;
Two minor face casting die parts, these two minor face casting die parts are configured to grow between the casting die part of limit opposite one another at the long limit casting die part of described fixation side and described drawer at movable side, and two faces of slab short brink are cooled off;
Two groups of minor face driver parts, these two groups of minor face driver parts arrange for described each minor face casting die part, support the back on the opposed direction of described minor face casting die part, and described minor face casting die part is moved towards the rightabout of its opposed direction and this opposed direction;
Long limit driver part, this length limit driver part make the long limit of described drawer at movable side casting die part towards moving with the long opposed direction of limit casting die part of described fixation side and rightabout thereof;
Support unit, this support unit support described minor face driver part;
Guide member, this guide member guide described support unit so that this support unit can be mobile in the opposed direction of the long limit casting die part of described fixation side and the long limit of described drawer at movable side casting die part; And
Linkage, this linkage consists of by a plurality of linkage components are linked, make described support unit take the mode with the mobile interlock of the long limit of described drawer at movable side casting die part move and the amount of movement that makes described support unit as 1/2 of the amount of movement of the long limit of described drawer at movable side casting die part.
In the present invention, described linkage for example possesses: first connecting rod, this first connecting rod links with the mode that can swing and fixed pivot, this fixed pivot take perpendicular to the horizontal direction of the moving direction of described support unit as the direction of rotating shaft and mobile;
Second connecting rod, this second connecting rod move fulcrum in the mode and first that can swing and link, and this first moves that fulcrum is arranged at described support unit and take the direction of the rotating shaft that is parallel to described fixed pivot as this first direction that moves the rotating shaft of fulcrum; And
Third connecting rod, this third connecting rod moves fulcrum in the mode and second that can swing and links, this second move that fulcrum is arranged at the long limit casting die part of described drawer at movable side and with the direction of the rotating shaft that is parallel to described fixed pivot as this first direction that moves the rotating shaft of fulcrum
Described linkage can constitute: make relevant with the amount of movement of the amount of movement that moves with the mode of the mobile interlock of the long limit of described drawer at movable side casting die part and make described support unit and described drawer at movable side length limit casting die part of described support unit by described first connecting rod to third connecting rod is linked.
In the mold variset of this continuous casting equipment, for example can constitute: the front end of described second connecting rod moves fulcrum with the 3rd of the mode that can rotate and described first connecting rod and links, the front end of described third connecting rod moves fulcrum with the 4th of the mode that can rotate and described first connecting rod and links, and the described the 4th to move length between fulcrum and the described fixed pivot be the described the 3rd to move the twice of the length between fulcrum and the described fixed pivot.
In addition, in the present invention, for example can constitute: for described first connecting rod to third connecting rod, described first connecting rod and third connecting rod connected to move the fulcrum place the 5th and rotate mutually, in addition, described second connecting rod is connected to and can be rotated with respect to described first connecting rod and third connecting rod, the described the 5th length and the described the 5th that moves between fulcrum and the described fixed pivot moves fulcrum and described the second equal in length that moves between the fulcrum, and the described the 5th moves fulcrum can move in the direction towards described fixed pivot.
And then in the present invention, for example, the long limit of described fixation side casting die part comprises: the long limit of fixation side copper coin; And the long limit of fixation side water tank, the long limit of this fixation side water tank is arranged at the behind of the long limit of described fixation side copper coin and the long limit of described fixation side copper coin is cooled off, and the long limit of described drawer at movable side casting die part comprises: the long limit of drawer at movable side copper coin; And the long limit of drawer at movable side water tank, the long limit of this drawer at movable side water tank is arranged at the behind of the long limit of described drawer at movable side copper coin and the long limit of described drawer at movable side copper coin is cooled off, and described minor face casting die part comprises: the minor face copper coin; And the minor face water tank, this minor face water tank is arranged at the behind of described minor face copper coin and described minor face copper coin is cooled off.
In the present invention, when make the long limit of drawer at movable side casting die part when the opposed direction with respect to the long limit of fixation side casting die part moves in order to change the minor face casting die part, the minor face driver part of supporting minor face casting die part also links with moving of the long limit of drawer at movable side casting die part because of linkage and the relevant amount of amount of movement mobile and the long limit of drawer at movable side casting die part, so need not operation that the minor face driver part of supporting minor face casting die part is transferred core, can significantly shorten for the time of changing the minor face casting die part, thereby can boost productivity.
In addition, by as present techniques scheme 2, consisting of linkage, linkage can be arranged at slab moving direction (vertically), so can realize the saving spatialization of the linkage around the mold, be conducive to apply the present invention to have the continuous casting equipment of a plurality of casting channels (lane) (foundry production line).
Description of drawings
Fig. 1 is the figure that the mold variset of the related continuous casting equipment of embodiments of the present invention is shown, and Fig. 1 (a) is top view, and Fig. 1 (b) is front view, and Fig. 1 (c) is left view.
Fig. 2 is that the master of the mold variset of this continuous casting equipment looks enlarged drawing.
Fig. 3 (a), Fig. 3 (b) are the top views of a part that the mold variset of this continuous casting equipment is shown, and are the figure that the action of long limit casting die part is shown.
Fig. 4 is the cutaway view that feather key and keyway is shown.
Fig. 5 is the stereogram of the shape of schematically illustrated pedestal.
Fig. 6 (a), Fig. 6 (b) are respectively rearview and the left hand view of support unit.
Fig. 7 is the schematic diagram that the action of present embodiment is shown.
Fig. 8 is the schematic diagram that the action of another embodiment of the present invention is shown.
Fig. 9 (a)～Fig. 9 (c) is the top view that the replacing operation of existing minor face casting die part is shown.
Description of reference numerals:
1a, 1b ... long limit copper coin; 2a, 2b, 7a, 7b ... the minor face copper coin; 3a, 3b, 41a, 42a ... long limit water tank; 4a, 4b, 8a, 8b ... the minor face water tank; 5a, 5b ... support plate; 6a, 6b, 61,62 ... axle; 30,31 ... support unit; 32 ... feather key; 37 ... keyway; 40 ... pedestal; 41,42 ... long limit casting die part; 50 ... linkage; 53,55,57,73,75,77 ... connecting rod; 52,72 ... fixed pivot; 54,56,58,59,74,76,78 ... mobile fulcrum.
The specific embodiment
Below, with reference to accompanying drawing embodiments of the present invention are specifically described.Fig. 1 is the figure of mold variset that the continuous casting equipment of embodiments of the present invention is shown, Fig. 1 (a) is the top view of a part that the mold variset of this continuous casting equipment is shown, Fig. 1 (b) is the front view of the mold variset of this continuous casting equipment, Fig. 1 (c) is the left view of a part that the mold variset of this continuous casting equipment is shown, Fig. 2 is the figure that amplifies the front view of the device that present embodiment is shown, Fig. 3 (a), Fig. 3 (b) is the top view of the mold variset of this continuous casting equipment, and is the figure that the action of long limit casting die part is shown.Such as Fig. 1 (a) and shown in Figure 3, the long limit casting die part 42 of F side (fixation side) and long limit casting die part 41 arranged opposite of L side (drawer at movable side), disposing the supporting of minor face casting die part between these long limit casting die parts is the axle 61,62,63 that can move along the slab width.As shown in Figure 3, the long limit casting die part 42 of F side constitutes and comprises long limit copper coin 1b and grow limit water tank 3b, and the long limit casting die part 41 of L side constitutes and comprises long limit copper coin 1a and long limit water tank 3a.Utilize the long limit copper coin 1a of mold thickness (slab thickness) change drive unit 14 drivings and long limit water tank 3a so that they are mobile in the opposed direction of long limit copper coin 1a, 1b.
Shown in Fig. 3 (a), both ends 3c on the slab width of the long limit water tank 3a of L side is supported in the mode that can move on the sidepiece 44a of pedestal 40 of Fig. 5 described later, and the both ends 3d on the slab width of the long limit water tank 3b of F side is fixed on the sidepiece 44b of pedestal 40 of Fig. 5.And the area configurations the mould portion between long limit water tank 3b and long limit water tank 3a has axle 6a, 6b.Axle 6a, 6b are driven by suitable drive unit and rotate, thereby minor face copper coin 2a, 2b and minor face water tank 4a, the 4b of support plate 5a, 5b of the front end of the bar that is installed on axle 6a, 6b moved towards direction near each other or that separate.Thus, the interval between minor face copper coin 2a, the 2b is changed, and then is changed as the slab width of foudry line.On the other hand, as described later, axle 6a, 6b are supported to respectively and can move along the opposed direction of slab thickness direction (mold thickness direction) that is long limit copper coin 1a, 1b.Long limit water tank 3b and long limit water tank 3a are linked by bar 15 respectively near two outsides of long limit copper coin 1a, 1b, utilize 16 couples of long limit water tank 3a of fastening spring of the end of the long limit water tank 3a side that is arranged at this bar 15 to apply towards the elastic force of the direction of length limit water tank 3b and should grow limit water tank 3a fastening.Be provided with mold thickness (slab thickness) change drive unit 14 in the end of the long limit of bar 15 water tank 3b side, utilize this drive unit 14 can change the outstanding length of bar 15, thus, can shown in Fig. 3 (b), change like that interval (thickness of slab) between long limit copper coin 1a, the 1b.
Shown in Fig. 1 (b), (c), be arranged to epimere axle 61 and hypomere axle 62 these two sections by making minor face copper coin and minor face water tank move the axle that changes the slab width along the slab width, the support plate 5b that installs for minor face water tank 4b links with U-shaped folder (clevis) 6b2 of the front end of each axle 61,62 bar by connecting pin 6b3 and in the same way.And the axle 61 of these two sections, 62 is supported on respectively support unit 30,31 in the same way in the position, two places of axle 61,62 long side direction.In addition, the axle 61 of Fig. 1 to Fig. 3 is corresponding with the axle 6b of Fig. 9, and axle 63 shown in Figure 3 is corresponding with the axle 6a of Fig. 9.Although below axle 63, also dispose the hypomere axle identical with axle 62.But it is not illustrated.Yet with axle 61,62 identical, axle 63 grades also are supported on support unit 30,31 in the same way.Thus, opposed pair of short edges casting die part all links with the axle 61 that is supported on 2 two sections of locating on the long side direction by two support units 30,31,62 respectively, this pair of short edges casting die part is supported by this axle 61,62, and can move along the slab thickness direction.Like this, the axle 61,62 that why utilizes two sections for moving along the slab thickness direction, is to remain in assigned position for minor face copper coin and the minor face water tank that will be applied with the molten steel static pressure with high accuracy by dividing two sections that minor face copper coin and minor face water tank are supported with a minor face copper coin and the supporting of minor face water tank.In addition, why utilizing respectively on its long side direction 2 of support unit 30,31 axles 61 to these two sections, 62 to locate to support, is the in the axial direction change in order not make axle 61,62 invar hydrostatics.Yet, the invention is not restricted to this, support respectively minor face copper coin and minor face water tank as long as dispose respectively an axle and a support unit in the both sides of slab width at least.
The long limit of F side casting die part 42 is fixedly installed on pedestal 40, and the long limit of L side casting die part 41 is arranged to and can be moved along the slab thickness direction at pedestal 40.Be schematically shown such as Fig. 5, for pedestal 40, to look when observing when leading, the height of central portion 45 raises, the height of sidepiece 44a, the 44b of its both sides is lower, the both ends 3d of the long limit casting die part 42(water tank 3b of fixation side (F side)) be fixed on the sidepiece 44b.In addition, the both ends 3c of the long limit casting die part 41(water tank 3a of drawer at movable side (L side)) can on sidepiece 44a, move by the long side direction (slab thickness direction) along pedestal 40.For pedestal 40, the epimere of section 45 and hypomere are provided with the upper pair of holes 46 that pedestal 40 is connected of width (width of slab) at pedestal 40 in the central, and these holes 46 form the flat pattern that extends along the moving direction of the long limit casting die part 41 of L side.In addition, the rectangular feather key 32 of along continuous straight runs (thickness direction of the slab) band plate-like of extending is fixed in the suitable position between the up and down pair of holes 46 of face of face side of pedestal 40 by bolt 38.And the axle 61,62 of the two sections that the minor face casting die part of a side's of slab width end side is supported is disposed in the hole 46 in the mode of passing to the back side from the surface of pedestal 40.These axles 61,62 can be in the inside in hole 46 shown in Fig. 5 arrow such along continuous straight runs and move along the thickness direction of slab.In addition, axle 61,62 and hole 46 between be provided with the gap, thereby can not hinder axle 61,62 movement.And shown in Fig. 1 (a), axle 61,62 face side at pedestal 40 are supported on support unit 30 in the same way, are supported in the same way support unit 31 in the rear side of pedestal 40.In addition, more than the end (minor face copper coin 2b side end) of a side of slab width is illustrated, axle 61 is corresponding with the axle 6b of Fig. 9, for the end (minor face copper coin 2a side end) of the opposite side of slab width, be provided with too pedestal, and the axle 63(of minor face copper coin 2a side is corresponding with axle 6a) etc. also be supported to and can move along the slab thickness direction at pedestal.Therefore, below only the axle supporting device to minor face copper coin 2b side describe.In addition, although long limit casting die part 41,42 is supported in sidepiece 44a, the 44b of pedestal 40 at the both ends of its long side direction (slab width), but the part of the centre of the long side direction of long limit casting die part 41,42 is extended the length identical with the support unit 30 of supporting minor face casting die part along vertical direction between two pedestals 40, grow the limit copper coin and have the height identical with the minor face copper coin.
Fig. 6 (a) is the rearview of observing support unit 30 from pedestal 40 sides, and Fig. 6 (b) is the side view (left view) when observing support unit 30 from the sidepiece 44a side of Fig. 5 towards sidepiece 44b side.Support unit 30 forms by bolt 36 two sheet materials is fixed assembling, under this assembled state, is formed with the hole 34 of inserting logical circles for axle 61 at the first half, is formed with in Lower Half to supply axle 62 to insert the hole 35 of logical circles.The location matches in the hole 46 of these holes 34,35 position and pedestal 40 shown in Figure 5, and then, be formed with the keyway 37 chimeric with this feather key 32 in the position of feather key 32 couplings support unit 30 and pedestal 40.Namely, as shown in Figure 4, the feather key 32 that is fixed in pedestal 40 by bolt 38 is fitted in the keyway 37 of the support unit 30 that axle 61,62 is supported, thus can be take the upper and lower surface 39 of this feather key 32 as guide surface at slab thickness direction (direction of arrow of Fig. 5) the above-mentioned support unit 30 of guiding and it is slided, make the upper and lower surface of feather key 32 support load via the upper and lower surface of keyway 37.Also be formed with keyway at support unit 31 with support unit 30 opposed opposed faces, face in support unit 31 sides of pedestal 40 also is provided with feather key, and support unit 31 makes pedestal 40 support load similarly, and this support unit 31 also can be mobile along slab thickness direction (the opposed direction of long limit copper coin).
And, in the present embodiment, between the support unit 30 that supports minor face casting die part (minor face copper coin and minor face water tank) and the long limit of L side casting die part 41, be provided with linkage 50.Between the support unit 31 of opposite side and the long limit of L side casting die part 41, also be provided with same linkage, because the structure of the structure of the linkage of these support unit 31 sides and the linkage of support unit 30 sides is basic identical, so followingly only the linkage of support unit 30 sides is described.As shown in Figure 2, this linkage 50 has the base portion 51 that is fixed in pedestal 40.And, be respectively arranged with all at this base portion 51, support unit 30 and the long limit of F side casting die part 41 that will the direction vertical with the moving direction of support unit 30 to be horizontal direction move fulcrum 54 and second as the fixed pivot 52, first of the direction of rotating shaft moves fulcrum 56.Fixed pivot 52 does not move because being arranged at base portion 51, and first moves fulcrum 54 together moves with support unit 30, and second moves fulcrum 56 together moves with the long limit of F side casting die part 41.Connecting rod 53 links with mode and the fixed pivot 52 that can swing.Connecting rod 55 moves fulcrum 54 in the mode and first that can swing and links, and connecting rod 57 moves fulcrum 56 in the mode and second that can swing and links.And the leading section of connecting rod 55 moves fulcrum 58 and links with being arranged at the 3rd of connecting rod 53 in the mode that can swing, the leading section of connecting rod 57 with the mode that can swing be arranged at the 4th of connecting rod 53 and move fulcrum 59 and link.And the length that fixed pivot 52 and the 4th moves between the fulcrum 59 is the twice that fixed pivot 52 and the 3rd moves the length between the fulcrum 58.In addition, in illustrated example, second moves fulcrum 54 is in and support unit 30 supporting is the identical height and position of the feather key 32 that can move, but may not arrange second in this mode moves fulcrum 54.
Next, the action of the mold variset of the present embodiment that consists of in the above-described manner described.To surrounded by long limit casting die part 41,42 and minor face casting die part overlook observation the time rectangular regional pour steel, utilization is cooled off molten steel and is formed solidified shell by long limit copper coin and the minor face copper coin of water tank cooling, then begin this slab is carried out drawing, after this continuous drawing slab and casting continuously.Then, in the way of this continuous casting operation, when changing the width of slab, temporarily stop the drawing to slab, the fastening spring 16 of loosening weakens long limit copper coin to the chucking power of minor face copper coin, and axle 61,62,63 etc. is driven, change thus the position between minor face copper coin 2a, the 2b, thus the width of change slab.On the other hand, in the situation of the thickness that changes slab, owing to need to change the minor face casting die part, when after casting finishes, safeguarding, utilize drive unit 14 that the long limit of L side casting die part 41 is moved towards illustrated left shown in Fig. 2 hollow core arrow like that.So, move the connecting rod 57 that fulcrum 56 links with second of the long limit of L side casting die part 41 and move fulcrum 59 via the 4th and make connecting rod 53 towards counterclockwise swinging.Thus, move the connecting rod 55 that fulcrum 58 and connecting rod 53 link via the 3rd, move fulcrum 54 and towards left (hollow arrow direction) tractive holding components 30 via first.Because support unit 30 grades are can be supported on along the mode that the slab thickness direction moves the places such as feather key 32 of pedestal 40 grades, so support unit 30 grades can move in the mobile mode that links with the long limit of L side casting die part 41.Therefore, be supported on these support unit 30 grades axle 61,62 etc. be supported on this axle 61,62 minor face casting die part too can be with the mode of the mobile interlock of the long limit of L side casting die part 41 and move.At this moment, because the 4th to move length between fulcrum 59 and the fixed pivot 52 be the 3rd to move the twice of the length between fulcrum 58 and the fixed pivot 52, thus the displacement that the displacement of support unit 30 grades and minor face casting die part is the L side grows limit casting die part 41 1/2.
Therefore, in order to change this minor face casting die part, when the long limit of L side casting die part 41 is moved towards the hollow arrow direction, axle 61,62 in before the mobile beginning in the situation at the center between long limit casting die part 41 and the long limit casting die part 42, even after mobile the also center between long limit casting die part 41 and length limit casting die part 42 of axle 61,62.Namely, before the mobile beginning of being interval in of long limit casting die part 41,42, be in the situation of D, when axle 61,62 during at the center between long limit casting die part 41 and the long limit casting die part 42, the distance on the slab thickness direction between the surface that axle 61,62 center and L side are grown limit casting die part 41 is D/2.And, be in the situation of d at L side long leg spare 41 amount of movement towards the hollow arrow direction from this state, as mentioned above, support unit 30 and even axle 61,62 amount of movements that move towards the hollow arrow direction because of linkage 50 are d/2.Therefore, after movement, grow the D+d that is spaced apart between the limit casting die part 41,42, distance on the slab thickness direction between the surface of the long limit of axle 61,62 center and L side casting die part 41 is D/2+d/2=(D+d)/2, even after movement, axle 61,62 is in the center of also growing on the slab thickness direction between the limit casting die part 41,42.Therefore, under this state, as long as change the minor face casting die part, after changing, if make the long limit of L side casting die part 41 to the long limit of F side casting die part 42 side shiftings, then the minor face casting die part also return the long limit of L side casting die part 41 amount of movement 1/2, thereby a pair of long limit copper coin contact the replacing end of minor face casting die part with pair of short edges copper coin between them.
In addition, in linkage 50, because connecting rod 53 swings centered by fixed pivot 52, so the second displacement that moves fulcrum 56 is not to be first to move the twice of the displacement of fulcrum 54 at stricti jurise.Fig. 7 is the schematic diagram that linkage 50 is shown.Wherein, in Fig. 7, the support unit 30 that axle 61,62 supports is being grown between limit water tank 42a and the long limit water tank 41a of L side in the F side on the slab thickness direction.Linking part 30a in the side that is arranged at support unit 30 is provided with first and moves fulcrum 54(E), be provided with second at the linking part 41b of the lower surface that is arranged at the long limit water tank 41a of L side and move fulcrum 56(C).If move fulcrum 59(B with the 4th) and fixed pivot 52(A) between length be made as L, move fulcrum 58(D with the 3rd) and fixed pivot (A) between length be made as L/2, the amount of movement of the long limit water tank 41a of L side is made as W, so the approximate relation that satisfies Z=W/2 of the amount of movement Z of support unit 30.
Next, the error of the amount of movement Z of this support unit 30 is estimated.In addition, before movement, it is vertical that connecting rod 53 keeps, connecting rod 57 maintenance levels, and second to move the length that fulcrum C and the 4th moves between the fulcrum B be L3, connecting rod 55 maintenance levels, first to move the length that fulcrum E and the 3rd moves between the fulcrum D be L4.If connecting rod 53 tilts as shown in phantom in Figure 7 like that, then can represent that the 4th moves the displacement X on the horizontal direction of fulcrum B by following mathematical expression.
X＝W－L3＋√（L3
2－h
2）＝W－L3＋L3√（1－（h／L3））
2
Because h is minimum with respect to L3, obtains following mathematical expression so can be similar to.
X＝W
h＝L－√（L
2－W
2）
When connecting rod 57 tilts with respect to horizontal direction, the connecting rod 57 that can represent level by following mathematical expression with tilt after the poor Δ L3 of floor projection length of connecting rod 57.
ΔL3＝L3－√（L3
2－h
2）
The connecting rod 55 that equally, can represent level by following formula with tilt after the poor Δ L4 of floor projection length of connecting rod 55.
ΔL4＝L4－√（L4
2－h1
2）
Because error delta L3 is relevant with length of connecting rod, so its half Δ L3/2 can impact the error of the amount of movement of support unit 30.Therefore, can represent that support unit 30 and even first moves the error delta Z of the amount of movement Z of fulcrum 54 by following formula.
ΔZ＝ΔL3／2＋ΔL4。
Error delta Z when having tried to achieve the mold size that has shown in the following table 1 by this mathematical expression.Unit is mm.
[table 1]
| Example | W | L | L3 | L4 | |
| 1 | 50 | 250 | 230 | 430 | 0.0352 |
| 2 | 75 | 250 | 230 | 430 | 0.1828 |
| 3 | 100 | 250 | 230 | 430 | 0.6011 |
Shown in this table 1, even the amount W=100mm that long limit casting die part moves, the error of the amount of movement Z of minor face casting die part also is 0.6011, and aspect practical application, the error of this degree can not cause any problem.For example, the side of the U-shaped of axle 6b folder 6b2 with for the gap between the linking part 5b1 of the support plate 5b of minor face water tank 4b installation in the one-sided scope that is in 2mm～3mm, the error about 0.6mm is absorbed by the size in this gap.In addition, as mentioned above, the error of above-mentioned table 1 is to use approximate expression to calculate the error of gained, and in strict situation about calculating, this error becomes less.
Like this, in the present embodiment, in the situation that the long limit of L side casting die part 41 moves, the axle 61,62 that keeps the minor face casting die part is also because of 1/2 of the amount of movement of the linkage long limit of mobile L side casting die part 41 on the direction identical with the long limit of L side casting die part 41.That is to say, keep the axle 61,62 of minor face casting die part to move in the mode with casting die part 41 interlocks of the long limit of L side.Therefore, in the present embodiment, the axle that keeps the minor face casting die part is the center between the casting die part of long limit all the time, so need not to carry out the operation that minor face is transferred core of being used in the past.Therefore, can significantly shorten and change the minor face required time of casting die part, thereby can significantly improve productivity ratio.In addition, in Fig. 2, although the height and position of feather key 32 is not to be in the central authorities between axle 61 and the axle 62 but to be positioned at axle 62 sides, the height and position of this feather key 32 and keyway is arbitrarily.
Next, with reference to Fig. 8 another embodiment of the present invention is described.In the present embodiment, the structure of linkage 70 is different from structure shown in Figure 7, and other structure is identical with the structure of Figure 1 and Figure 2.Although connecting rod 73 moves fulcrum 78(D with connecting rod 77 the 3rd in the present embodiment) locate to link, but this connecting rod 73 can't move fulcrum 78(D the 3rd with connecting rod 77) locate mutually to rotate, wherein, this connecting rod 73 with the mode that can swing be fixed in pedestal 40(with reference to Fig. 2) the set fixed pivot 72(A of base portion 71) link, this connecting rod 77 moves fulcrum 76(B with second of the linking part 41b of the mode that can swing and the lower end that is arranged at the long limit water tank 41a of L side) link.Therefore, connecting rod 73 is fixed on the straight line with connecting rod 77.On the other hand, first of the linking part 30a of connecting rod 75 and the side that is arranged at support unit 30 moves fulcrum 74(E) link, this connecting rod 75 moves fulcrum 78(D in the mode and the 3rd that can rotate) binding.
Shown in Fig. 8 (b), be formed with guide portion 82 at the linking part 41b of the long limit water tank 41a of L side, slide block 81 is can be towards moving with respect to the vertical below of moving direction of long limit water tank 41a by these guide portion 82 supportings.Be provided with second at this slide block 81 and move fulcrum 76(B), therefore, second moves fulcrum 76(B) when together along continuous straight runs moves with the long limit water tank 41a of L side, also move along vertical direction.
Therefore, shown in Fig. 8 (a), when the long limit water tank 41a of L side moves towards the direction shown in the hollow arrow, connecting rod 73,74 shown in dotted linely tilts like that, the 3rd moves fulcrum 78(D) move in the horizontal direction and amount of movement is Y, so connecting rod 73,74 moves fulcrum 74(E via connecting rod 75 towards hollow arrow direction tractive first), therefore, the support unit 30 that axle 61,62 is supported also moves and amount of movement is Z towards the hollow arrow direction.At this moment, when connecting rod 73,74 verts from the state that is in vertical direction, the 3rd moves fulcrum 78(D) and linking part 41b between distance increase, but variation that should distance is moved fulcrum 76(B by second) below is mobile along guide portion 82 towards vertical direction is absorbed, thereby kept second moving fulcrum 76(B) with the binding of linking part 41b.
In the present embodiment, compare to embodiment shown in Figure 7 with Fig. 1, although precision reduces slightly, the amount of movement that can make equally the support unit 30 that axle 61,62 is supported is 1/2 of the L side amount of movement of growing limit casting die part 41.Therefore, also can omit in the present embodiment and transfer the core operation, change the minor face required time of casting die part thereby can significantly shorten, and then can significantly improve productivity ratio.
In addition, in the present embodiment, although connecting rod 73 moves fulcrum 78 places with connecting rod 77 the 3rd and is joined into and can't rotates, certainly can fixed pivot 72 and second be moved fulcrum 76 bindings by a connecting rod, and arrange the 3rd at the middle position of this connecting rod and move fulcrum 78.This structure also belongs to technical scope of the present invention.
Utilize possibility on the industry
According to the present invention, in order to change the thickness of slab, when changing the minor face casting die part, make the minor face driver part of supporting minor face casting die part move the amount corresponding with the amount of movement of the long limit of L side casting die part in the mobile mode that links with the long limit of L side casting die part, so can significantly shorten the time of the drawing that stops slab.Therefore, the present invention has made great contribution to the raising of the productivity ratio of continuous casting equipment.
Claims (5)
1. the mold variset of a continuous casting equipment is characterized in that,
The mold variset of described continuous casting equipment has:
The long limit of fixation side casting die part, the long limit of this fixation side casting die part cools off a side's of slab long side face;
The long limit of drawer at movable side casting die part, the long limit casting die part of this drawer at movable side is grown limit casting die part arranged opposite with this fixation side, and the opposing party's of slab long side face is cooled off;
Two minor face casting die parts, these two minor face casting die parts are configured to grow between the casting die part of limit opposite one another at the long limit casting die part of described fixation side and described drawer at movable side, and two faces of slab short brink are cooled off;
Two groups of minor face driver parts, these two groups of minor face driver parts arrange for described each minor face casting die part, support the back on the opposed direction of described minor face casting die part, and described minor face casting die part is moved towards its opposed direction and rightabout thereof;
Long limit driver part, this length limit driver part make the long limit of described drawer at movable side casting die part towards moving with the long opposed direction of limit casting die part of described fixation side and rightabout thereof;
Support unit, this support unit support described minor face driver part;
Guide member, this guide member guide described support unit so that described support unit can move in the opposed direction of the long limit casting die part of described fixation side and the long limit of described drawer at movable side casting die part; And
Linkage, this linkage consists of by a plurality of linkage components are linked, make described support unit take the mode with the mobile interlock of the long limit of described drawer at movable side casting die part move and the amount of movement that makes described support unit as 1/2 of the amount of movement of the long limit of described drawer at movable side casting die part.
2. the mold variset of continuous casting equipment according to claim 1 is characterized in that,
Described linkage possesses:
First connecting rod, this first connecting rod links with the mode that can swing and fixed pivot, and this fixed pivot will be perpendicular to the horizontal direction of the moving direction of described support unit as the direction of rotating shaft and mobile;
Second connecting rod, this second connecting rod move fulcrum in the mode and first that can swing and link, and this first moves the direction of rotating shaft that fulcrum is arranged at described support unit and will be parallel to described fixed pivot as the direction of rotating shaft; And
Third connecting rod, this third connecting rod move fulcrum in the mode and second that can swing and link, and this second moves the direction of rotating shaft that fulcrum is arranged at the long limit casting die part of described drawer at movable side and will be parallel to described fixed pivot as the direction of rotating shaft,
Described linkage links described first connecting rod to third connecting rod, makes relevant with the amount of movement of the amount of movement that moves with the mode of the mobile interlock of the long limit of described drawer at movable side casting die part and make described support unit and the long limit of described drawer at movable side casting die part of described support unit.
3. the mold variset of continuous casting equipment according to claim 2 is characterized in that,
The front end of described second connecting rod moves fulcrum with the 3rd of the mode that can rotate and described first connecting rod and links, the front end of described third connecting rod moves fulcrum with the 4th of the mode that can rotate and described first connecting rod and links, and the described the 4th to move length between fulcrum and the described fixed pivot be the described the 3rd to move the twice of the length between fulcrum and the described fixed pivot.
4. the mold variset of continuous casting equipment according to claim 2 is characterized in that,
For described first connecting rod to third connecting rod, described first connecting rod and third connecting rod move fulcrum the 5th and can't rotate mutually, in addition, described second connecting rod links with described first connecting rod and third connecting rod in the mode that can rotate, the described the 5th length and the described the 5th that moves between fulcrum and the described fixed pivot moves fulcrum and described the second equal in length that moves between the fulcrum, and the described the 5th moves fulcrum can be mobile towards the direction of described fixed pivot.
5. the mold variset of each described continuous casting equipment is characterized in that according to claim 1～4,
The long limit of described fixation side casting die part comprises: the long limit of fixation side copper coin; And the long limit of fixation side water tank, the long limit of this fixation side water tank is arranged at the behind of the long limit of described fixation side copper coin and the long limit of described fixation side copper coin is cooled off, and the long limit of described drawer at movable side casting die part comprises: the long limit of drawer at movable side copper coin; And the long limit of drawer at movable side water tank, the long limit of this drawer at movable side water tank is arranged at the behind of the long limit of described drawer at movable side copper coin and the long limit of described drawer at movable side copper coin is cooled off, and described minor face casting die part comprises: the minor face copper coin; And the minor face water tank, this minor face water tank is arranged at the behind of described minor face copper coin and described minor face copper coin is cooled off.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-095616 | 2012-04-19 | ||
| JP2012095616A JP5944211B2 (en) | 2012-04-19 | 2012-04-19 | Mold change device for continuous casting equipment |
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| Publication Number | Publication Date |
|---|---|
| CN103372634A true CN103372634A (en) | 2013-10-30 |
| CN103372634B CN103372634B (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320193017 Withdrawn - After Issue CN203227809U (en) | 2012-04-19 | 2013-04-17 | Casting mould variable device for continuous casting equipment |
| CN201310133051.7A Active CN103372634B (en) | 2012-04-19 | 2013-04-17 | Mold variable device of continuous casting apparatus |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320193017 Withdrawn - After Issue CN203227809U (en) | 2012-04-19 | 2013-04-17 | Casting mould variable device for continuous casting equipment |
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| Country | Link |
|---|---|
| JP (1) | JP5944211B2 (en) |
| CN (2) | CN203227809U (en) |
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|---|---|---|---|---|
| JP5944211B2 (en) * | 2012-04-19 | 2016-07-05 | スチールプランテック株式会社 | Mold change device for continuous casting equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060421A (en) * | 1990-08-09 | 1992-04-22 | 新日本制铁株式会社 | Continuous cast method and equipment |
| US5322112A (en) * | 1992-03-04 | 1994-06-21 | Sumitomo Heavy Industries, Ltd. | Casting-thickness variable mold for continuous casting |
| JPH09150240A (en) * | 1995-11-29 | 1997-06-10 | Sumitomo Heavy Ind Ltd | Device for changing width of mold for continuous casting |
| JP2009214143A (en) * | 2008-03-11 | 2009-09-24 | Nippon Steel Engineering Co Ltd | Continuous casting mold mounted with electromagnetic brake permitting on-line replacement of short side |
| CN102164694A (en) * | 2008-09-23 | 2011-08-24 | Sms西马格股份公司 | Continuous casting mould |
| CN203227809U (en) * | 2012-04-19 | 2013-10-09 | 钢铁普蓝特克股份有限公司 | Casting mould variable device for continuous casting equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH091293A (en) * | 1995-06-14 | 1997-01-07 | Hitachi Ltd | Mold for continuous casting equipment and method for setting this |
| JP4404759B2 (en) * | 2004-12-27 | 2010-01-27 | 新日鉄エンジニアリング株式会社 | Continuous casting mold |
-
2012
- 2012-04-19 JP JP2012095616A patent/JP5944211B2/en active Active
-
2013
- 2013-04-17 CN CN 201320193017 patent/CN203227809U/en not_active Withdrawn - After Issue
- 2013-04-17 CN CN201310133051.7A patent/CN103372634B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060421A (en) * | 1990-08-09 | 1992-04-22 | 新日本制铁株式会社 | Continuous cast method and equipment |
| US5322112A (en) * | 1992-03-04 | 1994-06-21 | Sumitomo Heavy Industries, Ltd. | Casting-thickness variable mold for continuous casting |
| JPH09150240A (en) * | 1995-11-29 | 1997-06-10 | Sumitomo Heavy Ind Ltd | Device for changing width of mold for continuous casting |
| JP2009214143A (en) * | 2008-03-11 | 2009-09-24 | Nippon Steel Engineering Co Ltd | Continuous casting mold mounted with electromagnetic brake permitting on-line replacement of short side |
| CN102164694A (en) * | 2008-09-23 | 2011-08-24 | Sms西马格股份公司 | Continuous casting mould |
| CN203227809U (en) * | 2012-04-19 | 2013-10-09 | 钢铁普蓝特克股份有限公司 | Casting mould variable device for continuous casting equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103372634B (en) | 2015-06-10 |
| JP5944211B2 (en) | 2016-07-05 |
| CN203227809U (en) | 2013-10-09 |
| JP2013220468A (en) | 2013-10-28 |
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