JP3014315B2 - Dummy barker in continuous casting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a dummy barker in a continuous casting facility.

[0002]

2. Description of the Related Art To start casting in a continuous casting facility, a dummy bar must be inserted into a mold. The insertion of the dummy bar is performed as follows. As shown in FIG. 13, the dummy bar DB is suspended by the dummy bar lifting means 103, and the movable dummy bar car 101 approaches the suspended dummy bar DB.
By driving the chain 105 provided above,
The receiving claw 106 provided on the chain 105 is locked to the locked portion 109 of the dummy bar DB, and the chain 105 is driven to take the dummy bar DB onto the dummy bar car 101. When inserting the dummy bar DB into the mold M, the dummy barker 101 is moved to the position of the mold M, the chain 105 is driven, and the dummy bar DB 101 is inserted into the mold M from the tip end. In order to support the load of
A delivery claw 108 is provided in a direction opposite to that of FIG. 6, and the insertion is performed in a state where the delivery claw 108 is locked to a locked portion 110 at the rear end of the dummy bar DB. Incidentally, the above-mentioned locked portions 109 and 110 are both formed in a long hole shape, so that smooth movement can be obtained in engagement and disengagement with the receiving claw 106 and the delivery claw 108.
When the dummy bar is taken in, the receiving claw 106 and the locking portion 109
The delivery claw 108 is idle in the locked portion 110, and when the insertion of the dummy bar DB into the mold M progresses, the dummy bar DB moves downward to deliver the delivery claw.
108 and the locked portion 110 are locked, and the receiving claw 106
Is playing inside the locked portion 109. At this time, the dummy bar DB moves downward on the chain 105
Since the DB is suddenly slippery and shocked, not only the locking tool and the locked tool may be damaged, but also the chain 105 and the mold M may be adversely affected. Sometimes it happened.

To solve such a problem, Japanese Utility Model Publication No. 59-32
In the conventional example described in Japanese Patent Publication No. 434, a configuration as shown in FIGS. That is, 112 is the dummy barker 10
1 A rotatable receiving roll mounted on the upper side, and two rolls are provided on both sides of the chain 105. 113 is a stand fixed on the dummy barker 101,
A lever 114 is pivotally supported on the lever 113, and a pressure roll 115 is pivotally supported at an intermediate portion of the lever 114, and a free end is connected to a pressing device 116. Reference numeral 117 denotes a driving device for the pressure roll 115, which is supported on a lever 114. The driving device 117 is attached to the pressure roll 115 and the chain 105
The rotation is such that the peripheral speed is faster than the transfer speed of the transfer. Thus, when the dummy bar DB is inserted into the mold M, the dummy bar DB is forcibly slightly slid by the receiving roll 112 so that the delivery claw 108 at the rear end portion and the locked portion 110 of the dummy bar DB are preliminarily engaged. Stop, without causing the impact of sudden sliding,
It allows for stable insertion.

[0004]

However, in the conventional example, when replacing the main body of the dummy bar DB on the dummy bar car 101, the pressure roll is separated or the dummy bar is moved to a position where it does not come into contact with the pressure roll. Since it had to be replaced, it took a lot of man-hours and time.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a dummy bar car in which the replacement of a dummy bar main body can be performed easily and in a short time, and the maintenance property is improved.

[0006]

According to a first aspect of the present invention, there is provided a dummy barker, comprising a plurality of links connected to each other, a dummy bar having a receiving claw locking portion at a front end portion and a delivery claw locking portion at a rear end portion. A dummy bar car for receiving and mounting from the dummy bar lifting means, and for inserting into the mold, receiving the dummy bar, feeding on the dummy bar car, and a chain transport mechanism for performing an insertion operation into the mold, A dummy bar feed mechanism for feeding the dummy bar on the dummy barker, wherein the chain transport mechanism is endlessly wound around the dummy barker so as to circulate between the leading end and the rear end of the dummy barker. A chain, a receiving claw and a delivery claw attached to appropriate positions of the chain, and a drive unit for controlling forward and backward movement and stop of the chain. The bar feed mechanism is characterized by comprising a feed roller arranged to support the dummy bar from below and feed the dummy bar in the front-rear direction, and a drive unit for controlling feed and stop of the feed roller. I do. In the dummy barker according to the second aspect, a plurality of links are connected, and a dummy bar having a receiving claw locking portion at a front end portion and a delivery claw locking portion at a rear end portion is received and mounted from a dummy bar lifting means. And a dummy barker for inserting into the mold, receiving the dummy bar, feeding on the dummy barker, a chain transport mechanism for performing an operation of inserting into the mold, and feeding the dummy bar on the dummy barker. A chain that is endlessly wrapped around the dummy barker so as to circulate between a leading end and a rear end of the dummy barker. And a driving unit for controlling the forward and backward movement of the chain in a forward direction and a reverse direction. It was supported from the lower surface, and to the arranged feed chain to Cyclic in the longitudinal direction of the dummy Barker, characterized by comprising a driving unit for controlling the feeding and stopping of the chain.

[0007]

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a dummy barker 1 according to an embodiment of the present invention, wherein FIG. 1 (A) is a side view, and FIG.
FIG. 2 is an explanatory view of the chain transport mechanism 4, FIG. 2 is a plan view of the dummy barker 1, FIG. 3 is a partially enlarged plan view of the dummy bar feed mechanism 20, and FIG. .

1 and 2, reference numeral 1 denotes a dummy barker, which has a vehicle body 2 and wheels 3 attached to the lower surface thereof. The wheels 3 are driven to reciprocate between the dummy bar receiving position and the dummy bar inserting position on the casting floor. FIG. 1B shows a chain transport mechanism 4, which includes a driving sprocket 5, a chain guide 6 (which may be a chain sprocket), an endless chain 7 wrapped therebetween, and a chain sprocket 5. It is composed of a receiving claw 11 and a delivery claw 12 which are mounted in place. The chain guide 6 has the same cross-sectional shape as the chain guide 8 shown in FIG. 4 and guides the rotation of the chain 7.

As shown in FIG. 2, the chain transport mechanism 4 is provided with a drive sprocket 5 at the front end and a chain guide 6 at the rear end on the center line of the dummy barker 1. Then, the drive sprocket 5 is rotated by a drive device 13 and a control device (not shown), so that the chain 7 and the receiving claws 11 and the delivery claws 12 are rotated.
Can be moved forward, backward, and stopped. It should be noted that the driving unit described in the claims is a concept including the driving device 13 and a control device.

On both sides of the chain transport mechanism 4,
Roller type dummy bar feed mechanism (hereinafter referred to as roller feed mechanism)
20) are arranged in a large number. That is, a suitable number of the flanged feed roller 21 and the flangeless feed roller 22 are arranged in the front-rear direction of the vehicle body 2,
The dummy bar DB placed on the upper surface is fed back and forth. Reference numeral 24 denotes a driving device for the feed rollers 21 and 22, which includes a motor 25 and a speed reducer 26, and is controlled by a control device (not shown). It should be noted that the driving unit in the claims is a concept including the driving device 24 and a control device.
A chain 27 is looped between the sprocket on the side of the speed reducer 26 and the sprocket on the side of the feed roller 21, and the feed roller 21 and the other feed rollers 21, 22 are also connected by a chain transmission mechanism. I have. It should be noted that several feed rollers 21 and 22 in the vicinity of the center of the dummy barker 1 suffice to apply the feed drive by the driving device 24. However, in order to make the feed more reliable, the feed rollers near the front and rear are used. It is good to apply feed drive to 21 and 22 as well. Further, the transmission of the feed driving force from the driving device is not limited to the chain transmission, and various arbitrary means such as shaft connection may be employed.

3 and 4, reference numeral 8 denotes a chain guide for guiding the running of the chain 7. When the chain 7 travels in the chain guide 8, the receiving claw 11 and the delivery claw 12 protrude upward and engage with later-described receiving claw locking portions 36 and delivery claw locking portions 39 of the dummy bar DB. The flange 23 of the flanged roller 21 contacts the side wall of the dummy bar DB to prevent the dummy bar DB from meandering. In the dummy bar head DH, a portion through which the flange 23 passes is formed in a recess so as not to interfere.

FIG. 5 shows the vicinity of the front end of the dummy bar DB.
6A is a plan view, FIG. 6B is a side view, FIG. 6 shows the vicinity of the rear end of the dummy bar DB, FIG. 6A is a plan view, and FIG. 6B is a side view. In FIG. 5, reference numeral 31 denotes a tip fitting, to which a number of intermediate links 33 and 34 are connected via a tip link 32. The tip metal fitting 31 is provided with a locking pin 35 for hooking a hook of the dummy bar lifting means, and the tip link 32 is formed with a locking portion 36 with which the receiving claw 11 is engaged. Symbol d indicates a play interval in which the receiving claw 11 can move between adjacent links. In FIG. 6, DH is a dummy bar head to which a number of intermediate links 33 are connected via a rear end link 37.
34 are connected. Reference numeral 38 denotes a locking portion with which the delivery claw 12 is engaged. Reference numeral d denotes a play interval in which the delivery claw 12 can move between adjacent links.

Next, the operation of the dummy barker 1 of this embodiment will be described with reference to FIGS. FIG. 7 (I) shows a state in which the receiving claw 11 of the dummy barker 1 is to be engaged with the locking portion 36 of the dummy bar DB lifted by the main hook 41 of the dummy bar lifting device (not shown). . From this state, as shown in FIG. 7 (II), the chain transport mechanism 4 is driven forward (in the direction of arrow A), and the receiving claw 11 is engaged with the locking portion 36.
Advance further. At this time, the tip bracket 31 of the dummy bar DB
Is separated from the dummy bar lifting main hook 41. After that, when the chain 7 is further driven, the guide bar 42 of the dummy bar transfer device 40 receives that the tip metal fitting 31 of the dummy bar DB is about to fall to the dummy barker side, and the lever 42 is retracted by the cylinder, whereby the tip of the dummy bar DB is moved. The metal fittings 31 are received and placed on the dummy barker 1.

The dummy bar tip fitting 31 is connected to the dummy barker 1
After that, the dummy bar DB is moved to the upper surface of the dummy barker 1 by the receiving claw 11. At this time, when the roller feed mechanism 20 is synchronized with the chain feed mechanism 4 to feed in the forward feed direction (arrows A and B directions), the dummy bar DB
Are smoothly placed on the upper surface of the dummy barker 1. Fig. 8 (II
I) shows a state where the dummy bar DB is placed on the dummy barker 1 in this way, and FIG. 8 (IV) shows a state where the placement is completed. At this time, the delivery claw 12 is in the insertion space d in front of the locking portion 39 at the rear end of the dummy bar DB, but is not locked to the engaging portion 39. When the mounting is completed, both the chain transport mechanism 4 and the roller feed mechanism 20 stop once.

FIG. 9 (V) shows an important operation. After stopping in FIG. 8 (IV), only the chain transport mechanism 4 is reversed in the direction of arrow C while the roller transport mechanism 20 is stopped. As a result, the receiving claw 11 is separated from the locking portion 36, and the delivery claw 12 is further engaged with the locking portion 38 of the rear end fitting 37. Thereafter, as shown in FIG. 9 (VI), the chain transport mechanism 4 and the roller feed mechanism 20 are again synchronized and fed in the forward feed direction (the directions of arrows A and B), and in the state of FIG. 9 (9 (VI)). Stop.
This is a preparation operation for inserting the dummy bar DB into the mold M. After this preparation operation, the dummy bar DB and the dummy barker 1 remain in that state and stand by on the casting floor for casting preparation.

When a command to insert the dummy bar DB into the mold is issued, the dummy barker 1 moves from the above state to the position of the mold M, as shown in FIG. 10 (VII).
The chain transport mechanism 4 and the roller feed mechanism 20 are again synchronized and fed in the forward feed direction (directions of arrows A and B), and the dummy bar DB
From the tip into the mold M. By this operation, as shown in the figure, the dummy bar DB is gradually inserted into the mold M. At this time, even if the dummy bar DB itself tries to descend by its own weight, as described above, the dummy bar DB is Since the locking portion 38 has already contacted and there is no gap, no shock occurs and the delivery claw 12 and the dummy bar DB are not damaged. FIG. 10 (VIII) shows a state where the insertion of the dummy bar DB into the mold is almost finished, and the delivery claw 12 has come off from the locking portion 38 at the rear end of the dummy bar DB.

In the above example, the chain transport mechanism 4
After the roller feed mechanism 20 is stopped once, only the chain transport mechanism 4 is fed backward.
From the state of (IV), only the roller feed mechanism 20 is sequentially fed,
The delivery claw 12 can be brought into contact with the locking portion 38. However, this is limited by the weight and length of the dummy bar DB, the final stop state of the dummy bar on the dummy bar car 1, and the like. That is, the state shown in FIG.
This is effective when the dummy bar does not move (indicating a slip state) at a speed higher than the roller transport speed due to the weight of the tip of the dummy bar during the transition to the state of (1). Therefore, the above-described operation is normally performed.

As described above, according to the present embodiment, there is an effect that no shock is generated when the dummy bar DB is inserted into the mold. In addition, when the dummy bar DB is mounted on the dummy barker 1, Since there is no component of the dummy barker 1 above, there is an advantage that replacement of the dummy bar and other maintenance work can be performed very easily.

Next, a second embodiment of the invention will be described. In the above-described embodiment, the roller-type roller feed mechanism 20 is used as the dummy bar feed mechanism, but a feed mechanism 50 using a chain may be used instead. FIG. 11 is a schematic side view of the chain feed mechanism 50, and FIG. 12 is a schematic front view of the same. 11 and 12, reference numeral 51 denotes an endless chain, which is a sprocket 52 pivotally supported at the front end of the dummy barker 1.
And a sprocket 53 that is pivotally supported at the rear end.
The feed length of this chain 51 is the same as that of the roller feed mechanism 20.
, The length of which is the same as the feed length, and two rows are used on the left and right sides, and the upper transport section is supported by a chain support 54 in each case. Although not shown, the chain transport mechanism 4 and the chain guide 8 used in the above-described embodiment are provided between the two chains 51.

With the above structure, the chain feed mechanism 50
By performing the same operation as that of the roller feed mechanism 20 of the above-described embodiment, there is an effect that no shock is generated when the dummy bar DB is inserted into the mold, and the dummy bar DB is mounted on the dummy barker 1. so,
Since there is no component of the dummy bar car 1 above the dummy bar DB, there is an advantage that replacement of the dummy bar and other operations can be performed very easily. Further, in this embodiment, there is an effect that the bearing structure and the interlocking mechanism are remarkably simple.

[0021]

According to the first and second aspects of the present invention, each of the above-described embodiments has an effect that a shock does not occur when the dummy bar is inserted into the mold, and the dummy bar is mounted on the dummy bar car. Since there is no component of the dummy barker above the dummy bar, there is an effect that replacement of the dummy bar and other operations can be performed very easily.

[Brief description of the drawings]

FIG. 1 shows a dummy barker 1 according to an embodiment of the present invention, wherein FIG. 1 (A) is a side view and FIG. 1 (B) is an explanatory view of a chain transport mechanism.

FIG. 2 is a plan view of the dummy barker 1 of FIG.

FIG. 3 is a partially enlarged plan view of the roller feed mechanism 20;

FIG. 4 is a partially enlarged front view of the roller feed mechanism 20;

5A and 5B show a tip portion of a dummy bar DB, wherein FIG. 5A is a plan view and FIG. 5B is a side view.

6A and 6B show a rear end portion of the dummy bar DB, wherein FIG. 6A is a plan view and FIG. 6B is a side view.

FIGS. 7 (I) and (II) are explanatory diagrams of the receiving operation of the dummy bar DB.

FIG. 8 (III) is an explanatory view of the dummy bar DB feeding operation, and FIG.
V) is also an explanatory diagram of the feeding operation of the dummy bar DB.

FIG. 9 (V) is an explanatory diagram of the reverse feed operation of the chain transport mechanism 4, and FIG. 9 (VI) is an explanatory diagram of a state where the loading of the dummy bar DB is completed.

FIGS. 10A and 10B are explanatory diagrams of the operation of inserting the dummy bar DB into the mold in both (VII) and (VIII).

FIG. 11 is a schematic side view of a chain feed mechanism 50 according to an embodiment of the present invention.

FIG. 12 is a schematic front view of a chain-type feed mechanism 50 according to an embodiment of the present invention.

FIG. 13 is a diagram illustrating the operation of a conventional dummy barker 101.

FIG. 14 is a side view 101 of a conventional dummy barker.

FIG. 15 is a sectional front view of a conventional dummy barker 101.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Dummy barker 4 Chain conveyance mechanism 7 Chain 11 Receiving claw 12 Delivery claw 20 Roller feed mechanism 21 Feed roller 22 Feed roller 24 Drive device 28 Guide guide roller for dummy bar 36 Lock section 38 Lock section 50 Chain feed mechanism

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-50-45725 (JP, A) JP-A-2-16250 (JP, U) JP-A-56-87243 (JP, U) 32022 (JP, Y2) Jiko 61-16911 (JP, Y2) Jiko 59-32434 (JP, Y2) (58) Fields investigated (Int. Cl. ⁷ , DB name) B22D 11/08

Claims (2)

(57) [Claims] 1. A dummy bar having a plurality of links connected to each other and having a receiving claw locking portion at a front end portion and a delivery claw locking portion at a rear end portion.
A dummy bar car for receiving and mounting from the dummy bar lifting means, and for inserting into the mold, receiving the dummy bar, feeding on the dummy bar car, and a chain transport mechanism for performing an insertion operation into the mold, A dummy bar feed mechanism for feeding the dummy bar on the dummy barker, wherein the chain transport mechanism is endlessly wound around the dummy barker so as to circulate between the leading end and the rear end of the dummy barker. A chain, a receiving claw and a delivery claw attached to a proper position of the chain, and a drive unit for controlling forward and backward feeding and stopping of the chain. A feed roller supported from below and arranged to feed in the front-rear direction of the dummy barker, and controlling feed and stop of the feed roller. Dummy Barker in the continuous casting plant, characterized in that it consists of a drive unit for. 2. A dummy bar having a plurality of links connected to each other and having a receiving claw locking portion at a front end portion and a delivery claw locking portion at a rear end portion,
A dummy bar car for receiving and mounting from the dummy bar lifting means, and for inserting into the mold, receiving the dummy bar, feeding on the dummy bar car, and a chain transport mechanism for performing an insertion operation into the mold, A dummy bar feed mechanism for feeding the dummy bar on the dummy barker, wherein the chain transport mechanism is endlessly wound around the dummy barker so as to circulate between the leading end and the rear end of the dummy barker. A chain, a receiving claw and a delivery claw attached to a proper position of the chain, and a drive unit for controlling forward and backward feeding and stopping of the chain. A feed chain supported from below and arranged to circulate in the front-rear direction of the dummy barker, and for controlling the feed and stop of the chain. A dummy barker in a continuous casting facility, comprising: