CN103372634B - Mold variable device of continuous casting apparatus - Google Patents
Mold variable device of continuous casting apparatus Download PDFInfo
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- CN103372634B CN103372634B CN201310133051.7A CN201310133051A CN103372634B CN 103372634 B CN103372634 B CN 103372634B CN 201310133051 A CN201310133051 A CN 201310133051A CN 103372634 B CN103372634 B CN 103372634B
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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 continuous casting equipment for changing the mold variset of the size (thickness of slab) in the cross section of slab, especially relating to the mold variset that the bearing position of short brink mold can be maintained the continuous casting equipment of the central authorities of its width (slab thickness direction).
Background technology
The molten steel utilizing converter to carry out 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 and forms solidified shell at periphery in this mold, then, pull out downward from the bottom of mold under the state that molten steel is contained in inside and do not solidify slab, in the roller region (zone) comprising multiple roller, this is not solidified slab and is supported, and spray cooling water from nozzle and make it cool further, after solidifying completely, cut off with the suitable length separation on long side direction and formed slab.Like this, in continuous casting equipment, be injected into continuously in mold by molten steel, this molten steel solidifies continuously and forms slab.
In this continuous casting equipment, mold is made up of copper coin usually, but slab is formed as tabular usually, and the cross section of slab is formed as rectangle, so mold is configured to comprise: contact with the face of the long side of slab and the long limit copper coin cooled it; And the minor face copper coin contacting with the face of the short brink of slab and it is cooled, and long a pair limit copper coin is configured to opposite one another, between these long limit copper coins, pair of short edges copper coin is configured to opposite one another, thus casts the rectangular slab of Formation cross-section by molten steel being injected into the region that surrounded by these long limit copper coins and minor face copper coin.
And, in existing mold, accordingly minor face copper coin can be replaced by the different copper coin of bond length (patent document 1(Japanese Patent Publication 6-5742 publication) and patent document 2(Japanese Unexamined Patent Publication 5-245590 publication from the cross sectional shape of the slab as foudry line)).That is, in these prior aries above-mentioned, by changing interval between the copper coin of long limit and change the different copper coin of configuration bond length between this long limit copper coin, the thickness of slab can be changed.
Fig. 9 is top view thickness in order to change slab being shown and changing the existing operation of the minor face copper coin of mold.As shown in Fig. 9 (a), long a pair limit copper coin 1a, 1b are arranged opposite abreast, and pair of short edges copper coin 2a, 2b are arranged opposite abreast between these long limits copper coin 1a, 1b.Be fixed with long limit water tank 3a, 3b of internally supplying cooling water respectively in the mode contacted with long limit copper coin 1a, 1b in the behind of long limit copper coin 1a, 1b, described long limit water tank 3a, 3b cool long limit copper coin 1a, 1b respectively.In addition, be also fixed with in the mode contacted with minor face copper coin 2a, 2b minor face water tank 4a, 4b of internally supplying cooling water respectively in the behind of minor face copper coin 2a, 2b, described minor face water tank 4a, 4b cool minor face copper coin 2a, 2b respectively.And then, axle (spindle) 6a, 6b are with the behind making its bar towards the mode of minor face water tank 4a, 4b, described bar is flatly arranged at each minor face water tank 4a, 4b respectively, and support plate 5a, 5b of being arranged at the front end of the bar of this axle 6a, 6b link with minor face water tank 4a, 4b respectively.Thus, carry out turnover by making the bar of axle 6a, 6b and dodge movement, position on slab width of minor face copper coin 2a, 2b can be adjusted and the interval of changing between minor face copper coin, thus slab width can be changed.In addition, by making the bar of axle 6a, 6b retreat, minor face copper coin 2a, 2b and minor face water tank 5a, 5b can be changed.In addition, long limit copper coin 1b and long limit water tank 3b is fixed (F(Fixed, fixing) side mold), long limit copper coin 1a and long limit water tank 3a can to move (L(Loose, freely) side mold) close to the mode be separated relative to long limit copper coin 1b and long limit water tank 3b.In addition, in Fig. 9 (a), the thickness of slab is t, and support plate 5a, 5b of axle 6a, 6b support the thickness central portion of slab.
On the other hand, in the process of casting, when the thickness carrying out mold in order to cast thicker slab changes, first, as shown in Figure 9 (b), the long limit copper coin 1a of L side and long limit water tank 3a is retreated relative to the long limit copper coin 1b of F side and long limit water tank 3b, pulls down minor face water tank 4a, 4b from support plate 5a, 5b, and longer minor face copper coin 7a, the 7b of the length that minor face copper coin and minor face water tank are replaced by slab thickness direction and minor face water tank 8a, 8b.In this condition, width due to mold changes and does not change with the position of (slab width changes and uses) axle 6a, 6b, therefore the interval between center and the F side long limit copper coin 1b supporting the bearing position of support plate 5a, 5b of minor face water tank 8a, 8b still keeps t/2 constant, and the interval between the center of the bearing position of support plate 5a, 5b and the long limit copper coin 1a of L side becomes T-t/2, thus make the center deviation of described bearing position to F side.Therefore, when by pouring molten steel to mold time, the static pressure of molten steel acts on minor face copper coin 7a, 7b on the direction making the part of the L side of minor face copper coin 7a, 7b open wide more significantly than the part of F side centered by the bearing position center of being partial to F side.So, because this forms uneven load relative to the biased of center, and make because of this uneven load width change cardan shaft 6a, 6b and produce elastic deformation, when causing top view, minor face copper coin 7a, 7b tilt towards opposite directions, make the engaging-in surface to long limit copper coin 1a, 1b, the bight of minor face copper coin 7a, 7b, thus the surface of long limit copper coin 1a, 1b may be made to produce flaw.
Therefore, as shown in Figure 9 (c), when changing mold thickness, need to carry out minor face aligning.Namely, as shown in Figure 9 (c), the interval between long limit copper coin 1a, 1b is expanded by making long limit, L side copper coin 1a and long limit water tank 3a retreat, and then the distance making width change axle 6a, 6b move to apart from the long limit copper coin 1b of F side is the position of T/2, thus make the position of the position of support plate 5a, 5b supporting minor face water tank 8a, 8b and axle 6a, 6b consistent with the center of minor face copper coin 7a, 7b.In this condition, long limit copper coin 1a is moved to long limit copper coin 1b, utilize long limit copper coin 1a, 1b to clamp minor face copper coin 7a, 7b, thus be assembled into the mold of the casting space with rectangular in cross-section by long limit copper coin 1a, 1b and minor face copper coin 7a, 7b.Thereby, it is possible to obtain the mold implementing minor face aligning.
But, the mold minor face core adjusting device of the prior art there are the following problems point: be the minor face aligning drive unit comprising screw jack, motor, decelerator and position detector etc. as its special drive unit pattern of wants, thus equipment price becomes expensive.
In addition, a series of flow charts there are the following problems point of changing of mold thickness: need replacing and the aligning operation of carrying out minor face copper coin and minor face water tank continuously, thus the time of mold thickness change operation is lengthened.In continuous casting operation, although temporarily stop the cast (pull-out of slab) of molten steel be present in the state in continuous casting equipment in slab under and change this minor face copper coin and minor face water tank and carry out aligning operation, but continuous casting operation continued to carry out in 24 hours, thus the interior time more long-living productive rate stopped is poorer during this period.The operation of minor face aligning needs about 10 minutes usually, even if achieve the shortening of minor face aligning activity duration, only also effectively can not realize the shortening of mold change operation time whereby.
Summary of the invention
The object of the present invention is to provide a kind of mold variset of continuous casting equipment, minor face aligning flow chart can be cut down, thus can significantly shorten the mold change operation time.
The feature of the mold variset of continuous casting equipment involved in the present invention is, the mold variset of described continuous casting equipment has:
Fixation side long limit casting die part, the face of casting die part to a side of slab long side, this fixation side long limit cools;
Drawer at movable side long limit casting die part, this drawer at movable side long limit casting die part and this fixation side long limit casting die part arranged opposite, and the face of the opposing party of slab long side to be cooled;
Two minor face casting die parts, these two minor face casting die parts to be configured between described fixation side long limit casting die part and described drawer at movable side long limit casting die part opposite one another, and cool two faces of slab short brink;
Two groups of minor face driver parts, these two groups of minor face driver parts are arranged 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 in its opposed direction and this opposed direction;
Long limit driver part, this long limit driver part makes described drawer at movable side long limit casting die part move towards the direction opposed with described fixation side long limit casting die part and rightabout thereof;
Support unit, this support unit supports described minor face driver part;
Guide member, this guide member guides this support unit is moved up the opposed side of described fixation side long limit casting die part with described drawer at movable side long limit casting die part to described support unit; And
Linkage, this linkage is formed by being linked by multiple linkage component, makes described support unit to carry out moving with the mobile mode linked of described drawer at movable side long limit casting die part and to make the amount of movement of described support unit be 1/2 of the amount of movement of described drawer at movable side long limit casting die part.
In the present invention, described linkage such as possesses: first connecting rod, and this first connecting rod links with the mode that can swing and fixed pivot, and this fixed pivot is with the horizontal direction of the moving direction perpendicular to the described support unit direction that is rotating shaft and do not move;
Second connecting rod, this second connecting rod moves fulcrum with the mode that can swing and first and links, and this first moves fulcrum and be arranged at described support unit and be this first direction of moving the rotating shaft of fulcrum with the direction of the rotating shaft being parallel to described fixed pivot; And
Third connecting rod, this third connecting rod moves fulcrum with the mode that can swing and second and links, this second moves fulcrum and is arranged at described drawer at movable side long limit casting die part and using the direction of the rotating shaft being parallel to described fixed pivot as this first direction of moving the rotating shaft of fulcrum
Described linkage can be configured to: make described support unit to carry out moving to the mobile mode linked of described drawer at movable side long limit casting die part and to make the relevant of the amount of movement of the amount of movement of described support unit and described drawer at movable side long limit casting die part by being linked to third connecting rod by described first connecting rod.
In the mold variset of this continuous casting equipment, such as can be configured to: the front end of described second connecting rod is moved fulcrum with the 3rd of the mode that can rotate and described first connecting rod the and linked, the front end of described third connecting rod is moved fulcrum with the 4th of the mode that can rotate and described first connecting rod the and is linked, and the described 4th length moved between fulcrum and described fixed pivot is the described 3rd twice moving the length between fulcrum and described fixed pivot.
In addition, in the present invention, such as can be configured to: for described first connecting rod to third connecting rod, described first connecting rod and third connecting rod are connected to and cannot move fulcrum place the 5th and rotate mutually, in addition, described second connecting rod is connected to and can rotate relative to described first connecting rod and third connecting rod, it is equal with described second length moved between fulcrum that described 5th length and the described 5th moved between fulcrum and described fixed pivot moves fulcrum, and the described 5th moves fulcrum can move on the direction towards described fixed pivot.
Such as, and then in the present invention, described fixation side long limit casting die part comprises: fixation side long limit copper coin; And fixation side long limit water tank, this fixation side long limit water tank is arranged at the behind of described fixation side long limit copper coin and cools described fixation side long limit copper coin, and described drawer at movable side long limit casting die part comprises: drawer at movable side long limit copper coin; And drawer at movable side long limit water tank, this drawer at movable side long limit water tank is arranged at the behind of described drawer at movable side long limit copper coin and cools described drawer at movable side long limit copper coin, and described minor face casting die part comprises: minor face copper coin; And minor face water tank, this minor face water tank is arranged at the behind of described minor face copper coin and cools described minor face copper coin.
In the present invention, when in order to change minor face casting die part drawer at movable side long limit casting die part is moved up the opposed side relative to fixation side long limit casting die part time, also because of linkage, the movement of limit long to drawer at movable side casting die part links and the mobile amount relevant with the amount of movement of drawer at movable side long limit casting die part the minor face driver part of supporting minor face casting die part, so the operation without the need to carrying out aligning to the minor face driver part of supporting minor face casting die part, significantly can shorten the time for changing minor face casting die part, thus can boost productivity.
In addition, by forming linkage as technical scheme 2, linkage can be arranged at slab moving direction (longitudinal direction), so the saving spatialization of the linkage around mold can be realized, be conducive to the continuous casting equipment applying the present invention to there is multiple casting channel (lane) (foundry production line).
Accompanying drawing explanation
Fig. 1 is the figure of the mold variset of the continuous casting equipment illustrated involved by embodiments of the present invention, 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 for the mold variset that this continuous casting equipment is shown, and are the figure of the action that long limit casting die part is shown.
Fig. 4 is the sectional view that feather key and keyway is shown.
Fig. 5 is the stereogram of the shape schematically showing pedestal.
Fig. 6 (a), Fig. 6 (b) are rearview and the left hand view of support unit respectively.
Fig. 7 is the schematic diagram of the action that present embodiment is shown.
Fig. 8 is the schematic diagram of the action that another embodiment of the present invention is shown.
Fig. 9 (a) ~ Fig. 9 (c) is the top view of the replacing operation that existing minor face casting die part is shown.
Description of reference numerals:
1a, 1b ... long limit copper coin; 2a, 2b, 7a, 7b ... minor face copper coin; 3a, 3b, 41a, 42a ... long limit water tank; 4a, 4b, 8a, 8b ... 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.
Detailed description of the invention
Below, with reference to accompanying drawing, embodiments of the present invention are specifically described.Fig. 1 is the figure of the mold variset of the continuous casting equipment that embodiments of the present invention are shown, Fig. 1 (a) is the top view of a part for the mold variset that 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 for the mold variset that this continuous casting equipment is shown, Fig. 2 amplifies the figure that the front view of the device of present embodiment is shown, Fig. 3 (a), Fig. 3 (b) is the top view of the mold variset of this continuous casting equipment, and be the figure of the action that long limit casting die part is shown.As shown in Fig. 1 (a) and Fig. 3, the long limit casting die part 42 of F side (fixation side) is arranged opposite with the long limit casting die part 41 of L side (drawer at movable side), and being configured with the supporting of minor face casting die part between these long limit casting die parts is can along the axle 61,62,63 of slab width movement.As shown in Figure 3, the long limit casting die part 42 of F side is configured to comprise long limit copper coin 1b and long limit water tank 3b, and the long limit casting die part 41 of L side is configured to comprise long limit copper coin 1a and long limit water tank 3a.Utilizing mold thickness (slab thickness) to change drive unit 14 drives long limit copper coin 1a and long limit water tank 3a to move up the opposed side of long limit copper coin 1a, 1b to make them.
As shown in Fig. 3 (a), both ends 3c on the slab width of long limit, L side water tank 3a is can the mode of movement be supported on the sidepiece 44a of the pedestal 40 of Fig. 5 described later, and the both ends 3d on the slab width of long limit, F side water tank 3b is fixed on the sidepiece 44b of the pedestal 40 of Fig. 5.Further, axle 6a, 6b is had in the area configurations except the mould portion between long limit water tank 3b and long limit water tank 3a.Axle 6a, 6b are driven by suitable drive unit and rotate, thus minor face copper coin 2a, 2b of support plate 5a, 5b of the front end of the bar being installed on axle 6a, 6b and minor face water tank 4a, 4b are moved towards direction that is close to each other or that be separated.Thus, the interval between minor face copper coin 2a, 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 outside two of long limit copper coin 1a, 1b near linked by bar 15 respectively, utilize the fastening spring 16 being arranged at the end of the water tank 3a side, long limit of this bar 15 to apply locking for this long limit water tank 3a towards the elastic force in the direction of long limit water tank 3b long limit water tank 3a.The end of the water tank 3b side, long limit of bar 15 is provided with mold thickness (slab thickness) and changes drive unit 14, utilize this drive unit 14 can change the outstanding length of bar 15, thereby, it is possible to change the interval (thickness of slab) between long limit copper coin 1a, 1b as shown in Figure 3 (b) like that.
As shown in Fig. 1 (b), (c), the axle changing slab width by making minor face copper coin and minor face water tank move along slab width is arranged to epimere axle 61 and these two sections, hypomere axle 62, and the support plate 5b installed for minor face water tank 4b presss from both sides (clevis) 6b2 with the U-shaped of the front end of the bar of each axle 61,62 in the same way by connecting pin 6b3 and links.Further, the axle 61,62 of these two sections is supported on support unit 30,31 respectively in the same way in two positions, place of the long side direction of axle 61,62.In addition, the axle 61 of Fig. 1 to Fig. 3 is corresponding with the axle 6b of Fig. 9, and the axle 63 shown in Fig. 3 is corresponding with the axle 6a of Fig. 9.Although be also configured with the hypomere axle identical with axle 62 in the below of axle 63.But it is not illustrated.But with axle 61,62 identical, axle 63 grade is also supported on support unit 30,31 in the same way.Thus, opposed pair of short edges casting die part all links with the axle 61,62 being supported on 2 two sections located on long side direction by two support units 30,31 respectively, this pair of short edges casting die part by the supporting of this axle 61,62, and can move along slab thickness direction.Like this, why utilizing the axle 61,62 of two sections to support a minor face copper coin and a minor face water tank for can move along slab thickness direction, is to be supported by point two sections minor face copper coin and minor face water tank and with high accuracy, the minor face copper coin and minor face water tank that are applied with molten steel static pressure are held in assigned position.In addition, why utilizing support unit 30,31 to support 2 places of the axle 61,62 of these two sections on its long side direction respectively, is to not make axle 61,62 invar hydrostatic change in the axial direction.But, the present invention is not limited thereto, as long as at least configure an axle and a support unit in the both sides of slab width respectively and support minor face copper coin and minor face water tank respectively.
Long limit, F side casting die part 42 is fixedly installed on long limit, pedestal 40, L side casting die part 41 and is arranged to move along slab thickness direction at pedestal 40.As is schematically illustrated in figure 5, for pedestal 40, when carry out leading look observation time, the height of central portion 45 raises, the height of sidepiece 44a, 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 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 be mobile along the long side direction (slab thickness direction) of pedestal 40 on sidepiece 44a.For pedestal 40, in the central portion 45 epimere and hypomere be provided with by pair of holes 46 through for pedestal 40 on the width (width of slab) of pedestal 40, this some holes 46 is formed as the flat pattern extended along the moving direction of the long limit casting die part 41 of L side.In addition, in the horizontal direction the rectangular feather key 32 of band plate-like that (thickness direction of slab) extends is fixed on the suitable position between the pair of holes up and down 46 in the face of the face side of pedestal 40 by bolt 38.Further, the axle 61,62 of the two sections that the minor face casting die part of the end side of a side of slab width supports is configured in hole 46 in the mode of rearwardly passing from the surface of pedestal 40.These axles 61,62 can move by the thickness direction in the inside in hole 46 as arrows in fig. 5 like that in the horizontal direction and along slab.In addition, between axle 61,62 and hole 46, be provided with gap, thus the movement of axle 61,62 can not be hindered.Further, as shown in Fig. 1 (a), axle 61,62 is supported on support unit 30 in the same way in the face side of pedestal 40, is supported on support unit 31 in the same way in the rear side of pedestal 40.In addition, above the end (minor face copper coin 2b side end) of the 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 pedestal too, and the axle 63(of minor face copper coin 2a side is corresponding with axle 6a) etc. be also supported to can move along slab thickness direction at pedestal.Therefore, only the axle supporting device of minor face copper coin 2b side is described below.In addition, although long limit casting die part 41,42 is supported in sidepiece 44a, 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 extends the length identical with the support unit 30 of supporting minor face casting die part along vertical direction between two pedestals 40, and long limit copper coin has the height identical with minor face copper coin.
Fig. 6 (a) is the rearview observing support unit 30 from pedestal 40 side, 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 is formed through bolt 36 and by fixing for two sheet materials assembling, in this assembled state, is formed with the hole 34 of the circle of inserting for axle 61 at the first half, is formed with the hole 35 of the circle of inserting for axle 62 in Lower Half.The location matches in the hole 46 of the position of this some holes 34,35 and the pedestal 40 shown in Fig. 5, and then, be formed with the keyway 37 chimeric with this feather key 32 at support unit 30 with the position that the feather key 32 of pedestal 40 mates.Namely, as shown in Figure 4, the feather key 32 being fixed on pedestal 40 by bolt 38 is made to be fitted in the keyway 37 to the support unit 30 that axle 61,62 supports, can, with the upper and lower surface 39 of this feather key 32 for guide surface and guide above-mentioned support unit 30 and make it slide slab thickness direction (direction of arrow of Fig. 5) is upper, the upper and lower surface of feather key 32 be made to support load via the upper and lower surface of keyway 37 thus.Also keyway is formed with in the opposed faces opposed with support unit 30 of support unit 31, also feather key is provided with in the face of support unit 31 side of pedestal 40, 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).
Further, in the present embodiment, between support unit 30 and the L side long limit casting die part 41 of supporting minor face casting die part (minor face copper coin and minor face water tank), linkage 50 is provided with.Also same linkage is provided with between long limit, L side casting die part 41 at the support unit 31 of opposite side, because the structure of the linkage of this support unit 31 side is substantially identical with the structure of the linkage of support unit 30 side, so be only described the linkage of support unit 30 side below.As shown in Figure 2, this linkage 50 has the base portion 51 being fixed on pedestal 40.Further, be respectively arranged with at this base portion 51, support unit 30 and F side long limit casting die part 41 and all the direction vertical with the moving direction of support unit 30 and horizontal direction moved fulcrum 54 and second as the fixed pivot 52, first in the direction of rotating shaft and move 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 long limit, F side casting die part 41.Connecting rod 53 links with the mode that can swing and fixed pivot 52.Connecting rod 55 moves fulcrum 54 with the mode that can swing and first and links, and connecting rod 57 moves fulcrum 56 with the mode that can swing and second and links.Further, the leading section of connecting rod 55 with the mode that can swing be arranged at the 3rd of connecting rod 53 and move fulcrum 58 and link, 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.Further, fixed pivot 52 and the 4th moves the length between fulcrum 59 is the twice that fixed pivot 52 and the 3rd moves the length between fulcrum 58.In addition, in the example in the figures, second moves fulcrum 54 is in and is supported by support unit 30 as can the identical height and position of the feather key 32 of movement, but may not arrange second in like fashion moves fulcrum 54.
Next, the action of the mold variset of the present embodiment formed in the above-described manner is described.To region pour steel rectangular during the top view surrounded by long limit casting die part 41,42 and minor face casting die part, the long limit copper coin that utilization is cooled by water tank and minor face copper coin form solidified shell to cool molten steel, then start to carry out drawing to this slab, after this continuous drawing slab and casting continuously.Then, in the way of this continuous casting operation, when changing the width of slab, temporary transient stopping is to the drawing of slab, to loosen fastening spring 16, weaken long limit copper coin to the chucking power of minor face copper coin, axle 61,62,63 etc. is driven, change the position between minor face copper coin 2a, 2b thus, thus change the width of slab.On the other hand, when changing the thickness of slab, because minor face casting die part changed by needs, so when safeguarding after terminating in casting, utilize drive unit 14 that long limit, L side casting die part 41 is moved towards illustrated left as shown in Fig. 2 hollow core arrow.So, move with second of long limit, L side casting die part 41 connecting rod 57 that fulcrum 56 links and move fulcrum 59 via the 4th and connecting rod 53 is counterclockwise swung.Thus, move via the 3rd the connecting rod 55 that fulcrum 58 links with connecting rod 53, move fulcrum 54 via first and towards left (hollow arrow direction) tractive holding components 30.Because support unit 30 grade is can be supported on the places such as the feather key 32 of pedestal 40 grade along the mode of slab thickness direction movement, so support units 30 etc. can to move with the mobile mode linked of long limit, L side casting die part 41.Therefore, be supported on the axle 61,62 of this support unit 30 grade etc. and the minor face casting die part being supported on this axle 61,62 to move in the mode linked with long limit, L side casting die part 41 mobile too.Now, because the 4th length moved between fulcrum 59 and fixed pivot 52 is the 3rd twice moving the length between fulcrum 58 and fixed pivot 52, so the displacement of support unit 30 grade and minor face casting die part is 1/2 of the displacement of long limit, L side casting die part 41.
Therefore, in order to change this minor face casting die part, when making long limit, L side casting die part 41 move towards hollow arrow direction, when the center of axle 61,62 before mobile beginning between long limit casting die part 41 and long limit casting die part 42, even if the center of axle 61,62 also between long limit casting die part 41 and long limit casting die part 42 after movement.Namely, when long limit casting die part 41,42 be interval in mobile beginning before for D, when the center of axle 61,62 between long limit casting die part 41 and long limit casting die part 42, the distance on the slab thickness direction between the surface of the long limit in center and the L side casting die part 41 of axle 61,62 is D/2.Further, when L side long side members 41 is d towards the amount of movement in hollow arrow direction from this state, as mentioned above, support unit 30 and even the amount of movement of axle 61,62 because of linkage 50 towards the movement of hollow arrow direction are d/2.Therefore, after movement, D+d is spaced apart between long limit casting die part 41,42, distance on slab thickness direction between the surface of the long limit in center and the L side casting die part 41 of axle 61,62 is D/2+d/2=(D+d)/2, even if after movement, the center of axle 61,62 on slab thickness direction also between long limit casting die part 41,42.Therefore, in this condition, as long as change minor face casting die part, after replacement, if make long limit, L side casting die part 41 move to casting die part 42 side, long limit, F side, then minor face casting die part also returns 1/2 of the amount of movement of long limit, L side casting die part 41, thus long a pair limit copper coin contacts with the pair of short edges copper coin between them, and the replacing of minor face casting die part terminates.
In addition, in linkage 50, because connecting rod 53 swings centered by fixed pivot 52, so the second displacement moving fulcrum 56 is not the first twice moving the displacement of fulcrum 54 in a strict sense.Fig. 7 is the schematic diagram that linkage 50 is shown.Wherein, in the figure 7, the support unit 30 axle 61,62 supported on slab thickness direction between long limit, F side water tank 42a and L side long limit water tank 41a.The linking part 30a of the side being arranged at support unit 30 is provided with first and moves fulcrum 54(E), the linking part 41b of the lower surface being arranged at long limit, L side water tank 41a is provided with second and moves fulcrum 56(C).If move fulcrum 59(B by the 4th) and fixed pivot 52(A) between length be set to L, move fulcrum 58(D by the 3rd) and fixed pivot (A) between length be set to L/2, the amount of movement of long for L side limit water tank 41a is set to W, and so the amount of movement Z of support unit 30 is similar to the relation meeting Z=W/2.
Next, the error of the amount of movement Z of this support unit 30 is estimated.In addition, before the movement, connecting rod 53 keeps vertical, and connecting rod 57 keeps level, and second to move fulcrum C and the 4th length moved between fulcrum B be L3, and connecting rod 55 keeps level, and first to move fulcrum E and the 3rd length moved between 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 displacement X in 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 relative to L3, obtain following mathematical expression so can be similar to.
X＝W
h＝L－√（L
2－W
2）
When connecting rod 57 tilts relative to horizontal direction, the poor Δ L3 of the floor projection length of the connecting rod 57 after can being represented the connecting rod 57 of level by following mathematical expression and be tilted.
ΔL3＝L3－√（L3
2－h
2）
Equally, the poor Δ L4 of the floor projection length of the connecting rod 55 after can being represented the connecting rod 55 of level by following formula and be tilted.
ΔL4＝L4－√（L4
2－h1
2）
Because error delta L3 is relevant to 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 by this mathematical expression the mold size had shown in following table 1.Unit is mm.
[table 1]
| Example | W | L | L3 | L4 | Error delta Z |
| 1 | 50 | 250 | 230 | 430 | 0.0352 |
| 2 | 75 | 250 | 230 | 430 | 0.1828 |
| 3 | 100 | 250 | 230 | 430 | 0.6011 |
As shown in the Table 1., even if the amount W=100mm of long limit casting die part movement, the error of the amount of movement Z of minor face casting die part is also 0.6011, and in practical application, the error of this degree can not cause any problem.Such as, the gap between the linking part 5b1 of the support plate 5b that the side of the U-shaped folder 6b2 of axle 6b and confession minor face water tank 4b install is in the scope of 2mm ~ 3mm one-sided, and the error of about 0.6mm is absorbed by the size in this gap.In addition, as mentioned above, the error of above-mentioned table 1 is the error using approximate expression to carry out calculating gained, and when strict calculating, this error becomes less.
Like this, in the present embodiment, when long limit, L side casting die part 41 moves, keep the axle 61,62 of minor face casting die part also move up in the side identical with long limit, L side casting die part 41 because of linkage long limit, L side casting die part 41 amount of movement 1/2.That is, the axle 61,62 of minor face casting die part is kept to move in the mode linked with long limit, L side casting die part 41.Therefore, in the present embodiment, the center of axle all the time between the casting die part of long limit of minor face casting die part is kept, so without the need to carrying out the operation for carrying out aligning to minor face in the past.Therefore, it is possible to significantly shorten the time changed needed for minor face casting die part, thus productivity ratio can be significantly improved.In addition, in fig. 2, although the height and position of feather key 32 is not in the central authorities between axle 61 and axle 62 but be positioned at axle 62 side, the height and position of this feather key 32 and keyway is arbitrary.
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 the structure shown in Fig. 7, and the structure shown in other structure with Fig. 1 and Fig. 2 is identical.Although connecting rod 73 and connecting rod 77 move fulcrum 78(D the 3rd in the present embodiment) place links, but this connecting rod 73 and connecting rod 77 cannot move fulcrum 78(D the 3rd) place rotates mutually, wherein, this connecting rod 73 with the mode that can swing be fixed on pedestal 40(with reference to Fig. 2) base portion 71 set by fixed pivot 72(A) links, this connecting rod 77 with the mode that can swing and be arranged at long limit, L side water tank 41a lower end linking part 41b second move fulcrum 76(B) link.Therefore, connecting rod 73 and connecting rod 77 are fixed on straight line.On the other hand, connecting rod 75 be arranged at support unit 30 side linking part 30a first move fulcrum 74(E) link, this connecting rod 75 rotatably moves fulcrum 78(D with the 3rd) link.
As shown in Figure 8 (b) shows, be formed with guide portion 82 at the linking part 41b of long limit, L side water tank 41a, slide block 81 is supported as can moving towards the below vertical relative to the moving direction of long limit water tank 41a by this guide portion 82.This slide block 81 is provided with second and moves fulcrum 76(B), therefore, second moves fulcrum 76(B) together also moving along vertical direction while movement in the horizontal direction with long limit, L side water tank 41a.
Therefore, as shown in Figure 8 (a), when long limit, L side water tank 41a moves towards the direction shown in hollow arrow, connecting rod 73,74 shown in dotted line such tilt, 3rd moves fulcrum 78(D) to 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 supported axle 61,62 also moves towards hollow arrow direction and amount of movement is Z.Now, when connecting rod 73,74 verts from the state being in vertical direction, 3rd moves fulcrum 78(D) and linking part 41b between distance increase, but the change of this distance moves fulcrum 76(B by second) move below vertical direction along guide portion 82 and absorbed, thus maintain second and move fulcrum 76(B) with the link of linking part 41b.
In the present embodiment, compared with the embodiment shown in Fig. 1 to Fig. 7, although precision reduces slightly, 1/2 of the amount of movement to the amount of movement of the support unit 30 that axle 61,62 supports being long limit, L side casting die part 41 can be made equally.Therefore, also can omit aligning operation in the present embodiment, thus significantly can shorten the time changed needed for minor face casting die part, and then can productivity ratio be significantly improved.
In addition, in the present embodiment, although connecting rod 73 and connecting rod 77 move fulcrum 78 place the 3rd and be joined into and cannot rotate, certainly by a connecting rod, fixed pivot 72 and second can be moved fulcrum 76 and link, and arrange the 3rd in the middle position of this connecting rod and move fulcrum 78.This structure also belongs to technical scope of the present invention.
Industry utilizes possibility
According to the present invention, in order to change the thickness of slab, when changing minor face casting die part, to make the minor face driver part of supporting minor face casting die part move the amount corresponding with the amount of movement of long limit, L side casting die part with the mobile mode linked of long limit, L side casting die part, so the time of the drawing stopping slab significantly can being shortened.Therefore, great contribution has been made in the raising of the present invention to the productivity ratio of continuous casting equipment.
Claims (5)
1. a mold variset for continuous casting equipment, is characterized in that,
The mold variset of described continuous casting equipment has:
Fixation side long limit casting die part, the face of casting die part to a side of slab long side, this fixation side long limit cools;
Drawer at movable side long limit casting die part, this drawer at movable side long limit casting die part and this fixation side long limit casting die part arranged opposite, and the face of the opposing party of slab long side to be cooled;
Two minor face casting die parts, these two minor face casting die parts to be configured between described fixation side long limit casting die part and described drawer at movable side long limit casting die part opposite one another, and cool two faces of slab short brink;
Two groups of minor face driver parts, these two groups of minor face driver parts are arranged 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 long limit driver part makes described drawer at movable side long limit casting die part move towards the direction opposed with described fixation side long limit casting die part and rightabout thereof;
Support unit, this support unit supports described minor face driver part;
Guide member, this guide member guides described support unit is moved with on the opposed direction of described drawer at movable side long limit casting die part at described fixation side long limit casting die part to described support unit; And
Linkage, this linkage is formed by being linked by multiple linkage component, makes described support unit to carry out moving with the mobile mode linked of described drawer at movable side long limit casting die part and to make the amount of movement of described support unit be 1/2 of the amount of movement of described drawer at movable side long limit 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 the horizontal direction of the moving direction perpendicular to described support unit does not move as the direction of rotating shaft by this fixed pivot;
Second connecting rod, this second connecting rod moves fulcrum with the mode that can swing and first and links, and this first moves fulcrum and be arranged at described support unit and will be parallel to the direction of direction as rotating shaft of the rotating shaft of described fixed pivot; And
Third connecting rod, this third connecting rod moves fulcrum with the mode that can swing and second and links, and this second moves fulcrum and be arranged at described drawer at movable side long limit casting die part and will be parallel to the direction of direction as rotating shaft of the rotating shaft of described fixed pivot,
Described first connecting rod links to third connecting rod by described linkage, makes described support unit to carry out moving to the mobile mode linked of described drawer at movable side long limit casting die part and to make the relevant of the amount of movement of the amount of movement of described support unit and described drawer at movable side long limit casting die part.
3. the mold variset of continuous casting equipment according to claim 2, is characterized in that,
The front end of described second connecting rod is moved fulcrum with the 3rd of the mode that can rotate and described first connecting rod the and is linked, the front end of described third connecting rod is moved fulcrum with the 4th of the mode that can rotate and described first connecting rod the and is linked, and the described 4th length moved between fulcrum and described fixed pivot is the described 3rd twice moving the length between fulcrum and 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 cannot rotate mutually, in addition, described second connecting rod links with the mode that can rotate and described first connecting rod and third connecting rod, it is equal with described second length moved between fulcrum that described 5th length and the described 5th moved between fulcrum and described fixed pivot moves fulcrum, and the described 5th moves fulcrum can move up towards the side of described fixed pivot.
5. the mold variset of the continuous casting equipment according to any one of Claims 1 to 4, is characterized in that,
Described fixation side long limit casting die part comprises: fixation side long limit copper coin; And fixation side long limit water tank, this fixation side long limit water tank is arranged at the behind of described fixation side long limit copper coin and cools described fixation side long limit copper coin, and described drawer at movable side long limit casting die part comprises: drawer at movable side long limit copper coin; And drawer at movable side long limit water tank, this drawer at movable side long limit water tank is arranged at the behind of described drawer at movable side long limit copper coin and cools described drawer at movable side long limit copper coin, and described minor face casting die part comprises: minor face copper coin; And minor face water tank, this minor face water tank is arranged at the behind of described minor face copper coin and cools described minor face copper coin.
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103372634A CN103372634A (en) | 2013-10-30 |
| CN103372634B true CN103372634B (en) | 2015-06-10 |
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ID=49283958
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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 |
Family Applications Before (1)
| 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 |
Country Status (2)
| 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 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1031557C (en) * | 1990-08-09 | 1996-04-17 | 新日本制铁株式会社 | Method and apparatus for continuous casting |
| JPH05245590A (en) * | 1992-03-04 | 1993-09-24 | Sumitomo Heavy Ind Ltd | Cast slab thickness variable mold for continuous casting |
| JPH091293A (en) * | 1995-06-14 | 1997-01-07 | Hitachi Ltd | Mold for continuous casting equipment and method for setting this |
| JP2963867B2 (en) * | 1995-11-29 | 1999-10-18 | 住友重機械工業株式会社 | Width changing device for continuous casting mold |
| 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 |
| JP5074246B2 (en) * | 2008-03-11 | 2012-11-14 | 新日鉄エンジニアリング株式会社 | Continuous casting mold with electromagnetic brake for online short side replacement |
| DE102008057888A1 (en) * | 2008-09-23 | 2010-03-25 | Sms Siemag Aktiengesellschaft | continuous casting |
| 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 |
-
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
Also Published As
| Publication number | Publication date |
|---|---|
| JP5944211B2 (en) | 2016-07-05 |
| CN203227809U (en) | 2013-10-09 |
| JP2013220468A (en) | 2013-10-28 |
| CN103372634A (en) | 2013-10-30 |
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