JPS5811295B2 - Youyukinzokui komiyouigataheno hoonzaitritsukesouchi - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for attaching a heat insulating material to the inner surface of a mold used for making molten metal ingots, particularly for producing steel ingots by pouring molten steel into the mold.

Conventionally, the installation of heat insulating material to a mold involves pulling down the heat insulating material of the required size into the mold, aligning it along the inner surface of the mold, and applying manual force, fluid pressure, electromagnetic force, explosive force of gunpowder, etc. using an appropriate tool. Nail with the driving tool used.

This is done by driving in fixing tools such as rivets.

In this case, it is dangerous to manually drive the fasteners one by one when attaching heat insulating material to a mold that is used repeatedly, or when attaching heat insulating material to a large number of molds almost constantly. It is also extremely inefficient and causes severe worker fatigue.

For this reason, in order to be able to drive in the heat insulating material and the fixing tools necessary for its installation all at once, multiple driving tools are pulled down along the inner surface of the mold using a lifting device, and the driving tools are used to place the heat insulating material. A technique has been proposed in which attachment is achieved by pinching and pressing against the inner surface of the mold, and then driving a fixing tool.

By the way, as is well known, the mold for making ingots is itself large and heavy, so it is transported by being mounted on a vehicle and stopped at a place where fixture installation equipment such as the lifting device is installed. However, if the insulation material being pulled down and the inner surface of the mold are not parallel, that is, the mold is tilted on a plane or tilted on a vertical plane, the installation will stop at the position, and the driving tool will In many cases, it is difficult or impossible to press the fixing tool perpendicularly to the inner surface of the mold, making it impossible to drive the fixing tool completely.

In addition, the amount of molten metal injected into a mold of a certain size is constant, and when it cools, a homogeneous steel ingot with no cavities must be obtained. Therefore, the heat insulating material must be placed at a precisely constant level from the top of the mold. is required to be installed at a height of

The present invention enables the heat insulating material to be easily and accurately attached to a fixed location even if the mold is placed in an inclined state.

Below, an embodiment of the present invention will be described with reference to the drawings.The wheels 3 of a base 2 are mounted on rails 1 laid at a high place in a workshop, and can be driven by a motor 4. The pillar 5 is made upright, and a frame 6 is horizontally supported and fixed on its upper end.The wheels 9 of seven front and rear carts 8 are mounted on the rail 1, which is laid parallel to the rail 1, on the upper surface of the frame 6, and each wheel is moved by a prime mover (not shown). Furthermore, rails 10 extending in a direction perpendicular to the rails 7 are provided on the upper surface of each bogie 8, and wheels 12 of a sub-bogie 11 are mounted thereon so that each bogie can be moved separately by a prime mover (not shown).

The elevating device 14 of the driving tool 13 includes a tubular guide 15 whose upper end is attached to the sub-truck 11 and hangs down, and a columnar elevating member 16 which is fitted into the guide 15 so as to be movable up and down and extends further downward.
It consists of a winding drum 18 that winds up a cable 17 that is mounted on an auxiliary truck 11 and connected to an elevating member 16, and its prime mover 19, and the guide 15 is lifted and lowered by a rotating device 20 composed of, for example, a rack and pinion. It rotates and pivots together with the member 16.

A support base 21 is horizontally fixed to the lower end of the elevating member 16,
Two lifting devices 14 equipped on two sub-bogies 11, 11
, 14 has a left inner surface 22a and front and rear inner surfaces 22 of the mold 22 in FIGS. 1 and 8.
The driving tool 13 toward the left half of b22o and the inner surface 2 on the right side
2d and the driving tool 13 facing the right half of the front and rear inner surfaces 22b>22c are respectively mounted on bearings 23 that are movable in the driving tool axis direction, and the main body of the driving tool 13 is rotated in the vertical direction by a support shaft 24. Equipped with possible installation.

The elevating device 26 for the heat insulating material 25 includes a groove-shaped guide 2T provided along the four pillars 5, a hanging frame 28 fitted into the guide 27 so as to be able to rise and fall, and a hanging frame 28 mounted on the base 2 and suspended. Winding drums 30 and 3 winding cables 2929 connected to both ends of the frame 28
0 and their prime movers 31, and positioning members 32 in contact with the upper end edges of each side of the mold 22 are suspended from the hanging frame 28 by hanging cables 33. or hanging rope 33
The driving tool 13 is attached to the mold 22 and is lowered into the mold 22.
The heat insulating material 25 is lowered into the mold 22 by the respective lifting devices 14 and 26, and when the positioning member 32 comes into contact with the upper edge of the mold 22, the heat insulating material 25 is lowered together with the upper edge of the mold 22. The material 25 stops (see Figure 4)
.

Therefore, when attaching the heat insulating material 25 to the positioning member 32, by keeping the position constant, the heat insulating material 25 can be attached to the mold 22.
It is lowered to a certain height from the upper surface 22e of the robot and stops.

Next, the bearing part 23 is moved on the support base 21 by a prime mover such as a hydraulic cylinder (not shown), and the driving tool 13 is advanced to press its tip against the inner surface of the mold 22 via the heat insulating material 25. The driving tool 13 is operated to fire the fixing tool 34 using fluid pressure, explosive force of gunpowder, etc., driving it into the mold 22 and fixing the heat insulating material 25 to the mold 22. Then, the driving tool 13 is retreated and the positioning member 34 is fired. 32 (see Figure 5).

The positioning member 32 has a flat plate-shaped locking portion 32 a that rests on the upper surface 22 e of the mold 22 and a guide portion 32 b that extends downward along the inner surface of the mold 22 .
2a is fixed and hung horizontally.

In FIG. 4, a hanging cable 33 is passed through a locking part 32a, a hook 35 is provided at the lower end of the hanging cable 33, and the hanging cable 33 is hooked onto an annular hanging tool 36 provided on the upper edge of the heat insulating material 25. When the member 32 is raised, the hook 35 is detached from the hanging tool 36.

In FIG. 6, a needle-like projection 37 is provided protruding from the outer surface of the guide portion 32b, and the needle-like projection 3γ is inserted into the upper end of the heat insulating material 25 so as to be suspended so that the mounting position can be adjusted. After that, only the positioning member 32 is raised.

The suspension frame 28, which suspends the heat insulating material 25 and the positioning member 32 and descends or ascends along the guide 27, has left and right main frames 28a, 28a each having a guide trochanter 38 engaged with the guide 27 at both ends. , a first sub-frame 285° 28b extending in the left-right direction and movably attached to the main frames 28a, 28a in the front-rear direction, and the first sub-frames 28b, 28
The guides 15 and 15 of the two elevating devices 14 and 14 of the driving tool 13 are respectively provided with two sets of second sub-frames 28o extending in the front-rear direction and movably attached to the left and right sides of the drive tool 13. It passes through the rectangle formed by one sub-frame and a pair of second sub-frames.

Further, two hanging rope attachments 39 are movably attached to each of the sub-frames 28b and 28c forming this quadrangle (see FIG. 3).

The positioning member 32 is suspended horizontally by a hanging cable 33 which is attached to a selected mounting fixture 39 as required.

In the case of small molds, by placing the two molds below the two squares mentioned above, the heat insulating material can be attached almost simultaneously, and the first sub-frame 28b and the second sub-frame 28o can be moved as appropriate. This makes it possible to accommodate molds of various sizes.

Of course, it is also possible to provide only one set of elevating device for the driving tool so that the heat insulating material is attached to only one type of mold, omit the second sub-frame, and fix the first sub-frame to the main frame. Furthermore, it is also possible to configure the heat insulating material to be attached to three or more molds at the same time.

Note that the guide 27 of the elevating device 26 for the heat insulating material 25 has a scale 40.
is provided so that the lowered position of the heat insulating material 25 can be determined by reading the scale 40 corresponding to the position of the hanging frame 28.

In addition, the elevating device 14 of the driving tool 13 is movable back and forth and left and right so that it can always be lowered to a predetermined position in the mold 22, and its elevating member 16 is rotatable.
In addition, the driving tool 13 is movable in its axial direction,
It goes without saying that these drive mechanisms are not limited to the above-mentioned embodiments and may be used in appropriate combinations of electric motors, fluid pressure cylinders, etc. Furthermore, as the driving tool 13, any known tool can be used. The driving operation is performed by remote control, and it is generally desirable that each driving tool 13 be equipped with a plurality of fasteners 34.

Furthermore, the elevating device 26 for the heat insulating material 25 is a fluid pressure cylinder,
It goes without saying that the suspension frame 28 may be raised and lowered by a gear device or the like.

In addition, the heat insulating material 25 can be attached to the hanging cable 33 together with the positioning member 32, and the hanging cable 33 can be wound around the winding drum, without having to suspend it all from the hanging frame 28 and pull it down all at once. It may also be constructed so that each part is lowered separately.

As described above, in the present invention, the elevating device 14 for the driving tool 13 and the elevating device 26 for the heat insulating material 25 are provided separately so that they operate separately, and the elevating device 26 for the heat insulating material 25 is provided with the elevating device 14 for the driving tool 13 and the elevating device 26 for the heat insulating material 25. Since the positioning member 32 is provided to be pulled down and engaged with the upper surface 22e of the mold 22, the positioning member 32 is attached to the hanging cable 33 of the lifting device 26 and is moved toward the inside of the mold 22. When lowered, even if the mold 22 is tilted on a vertical plane as shown in FIG. 7, the positioning member 32 first contacts the high part and then relaxes the hanging cable 33 to remove the tilted upper surface 22o.
, the heat insulating material 25 can be positioned and stopped at a predetermined height.

Further, since the driving tool 13 mounted on a support base 21 that can be rotated and raised/lowered by the lifting device 14 for the driving tool 13 is movable in the axial direction and rotatable in the vertical direction, for example, as shown in FIG. Even if the mold 22 is tilted on a horizontal plane, the driving tool 13 is rotated so that it is perpendicular to the inner surface of the mold, and then moved forward to push the insulating material 25, which is suspended and stopped at the normal position, and tilt it. In addition, even in the case shown in FIG. 7, the driving tool 13 can be rotated up and down according to the inclination and completely pressed against the inside of the mold. This allows the tool to be brought into contact with the inner surface of the mold at an accurate right angle, regardless of its inclination, and the fixing tool can be reliably and completely driven into the mold.

Therefore, the heat insulating material can be continuously and automatically attached to the high temperature mold 22 at a position exactly at a constant height from the upper surface 22e.

[Brief explanation of drawings]

Fig. 1 is a front view showing an embodiment of the present invention, Fig. 2 is a partial plan view, Fig. 3 is a sectional view taken along line X-X in Fig. Side view showing parts, No. 5
The figure shows its operating state, Figure 6 is a partially cutaway side view showing a different example of how the positioning member and heat insulating material are installed, and Figures 7 and 8 show how the heat insulating material is attached to the mold. It is an explanatory view of the installation situation. 2... Base, 6... Frame, 8... Dolly, 11... Sub-truck, 13... Driving tool, 14... Elevating device, 15... Guide, 16... Elevating member, 20... times motion device, 21... support stand, 22... mold, 223.22b, 22. ．． 22d...
...Inner surface, 22e...Top surface, 25...Insulating material, 26...Elevating device, 27...Guide, 28...Hanging frame, 28a...
Main frame, 28b, 28o...subframe, 32...positioning member, 32a...mating section, 33...hanging cable, 34...fixing device.

Claims (1)

[Claims] 1. The driving tool 13 has a lifting device 14 for the driving tool 13 and a lifting device 26 for the heat insulating material 25, which can be raised and lowered separately. The elevating device 26 for the heat insulating material 25 is equipped with a hanging cable 33 for suspending the heat insulating material 25, and the heat insulating material 2 is attached to this hanging cable 33.
5. A heat insulating material attaching device to a mold for casting molten metal, comprising a positioning member 32 that is pulled down integrally with the mold 22 and engages with the upper surface 22e of the mold 22.