JPS6030717Y2 - Metal case mounting device for nozzle bricks - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a metal case mounting device for a nozzle brick.

In a sliding nozzle device that ladles and discharges molten metal, a metal case is attached to the nozzle brick used to constitute a part of the device in order to increase the strength and prevent the nozzle brick from cracking. It is.

Conventionally, as a method of attaching a metal case to a nozzle brick,
The method used is to apply mortar to a predetermined thickness on either the nozzle brick or the metal case, and then manually insert and fix the mortar. Not only did the work efficiency not improve (approximately 20 pieces per day), but the mortar layer was easily deflected because it was difficult to center it during insertion, and there were also quality problems.

The purpose of this invention is to provide a device that can attach a metal case to a nozzle brick without causing uneven thickness in the mortar layer and with high work efficiency.The invention is illustrated below. The following is an explanation based on one embodiment.

In the figure, reference numeral 1 denotes a rotary table, and its rotary shaft 2 is connected to a motor 4 via a rotary transmission mechanism 3.

5 is a nozzle brick a (
(see Fig. 4), and the fixing table 5 has a protrusion 6 in the center for fitting the recess a□ on the lower surface of the nozzle brick a, and a protrusion 6 in the center for fitting the recess a□ on the lower surface of the nozzle brick a. It has a fixed shaft 7 that fits into a hole (see Figure 4).

In order to be able to replace the fixing base 5 as appropriate depending on the size of the nozzle brick a, the fixing base 5 is fixed to the rotary table 1 in a replaceable manner using bolts or the like at several locations on its outer circumference, for example. is advantageous.

Reference numeral 8 denotes a mortar coating device disposed on the side of the rotary table 1 in order to coat the outer peripheral surface of the nozzle brick a with mortar to a predetermined thickness.
' is provided with a rubber blade plate 8a that faces the outer circumferential surface of the metal case adhesion part a' of the nozzle brick a with a thickness of mortar applied thereto (see FIG. 4), and the rubber blade plate 8a An annular portion 8d at the rear end of the support arm 8C extends rearward from the back surface of the mounting plate 88b, and is rotatably supported on the upper end of the column 8e. By rotating the blade plate 8a, the blade plate 8a can be moved away from the painting operation position shown in FIG. 1 to a non-painting operation position, which is rotated by an appropriate angle, for example, 90 to 180'C.

This situation is illustrated in FIG. The coating device 8 is equipped with a suitable device that allows the rubber blade plate 8a to be restrained at the painting operation position during the mortar painting operation, and immediately released from the restraint and moved to the non-painting operation position after the painting operation is finished. Measures can be taken.

The blade plate 8a does not necessarily need to be made of rubber, and may be made of plastic, wood, or metal.

Reference numeral 9 denotes a metal case holder that is moved up and down in a position concentric with the nozzle brick a while holding the metal case b attached to the nozzle brick a. It is supported vertically and slidably on the support column 9C via the arm 9a and an annular portion 9b at the rear end of the support arm 9a.

In addition, the holder 9 is suspended from the lower end of a piston rod 11 of an air cylinder 10 provided at the upper end of the support column 9C in the middle of its support arm 9a. It is designed to move up and down along 9C.

The structure of the holder 9 is not particularly limited as long as it can hold the metal case b (see Figure 4).
A structure that allows for tight holding is shown.

This cylindrical holder 9 has a door 9d for inserting a metal case in the lower half 9', and the door 9d can be opened and closed by a threaded part 9e on one end (see Fig. 2). There is also a stopper 9f provided on the other end so that it can be fixed in the closed state.

The lower half 9' of the holder 9 has a slightly smaller body diameter than the metal case b, so that when the door 9d is closed, the metal case b is tightly held within the lower half 9'; Released from the hold and in a free state.

In order to obtain a stable and reliable holding state, a known stopper that can exert a tightening effect can be advantageously used as the stopper 9f.

Reference numeral 12 denotes a centering mechanism when inserting the metal case b into the nozzle brick a.
2a, and a center hole 12b formed on the upper surface of the fixed shaft 7 of the nozzle brick fixing base 5.

In the device of the present invention having the above-described configuration, the nozzle brick a
When mounting the metal case b on the rotary table 1, the metal case b is held in its holder 9 in the state shown in FIGS. Using the coating device 8, mortar is applied to a uniform thickness at a predetermined location on the outer peripheral surface of the nozzle brick a, that is, the portion where the metal case b is installed.

This state is shown in FIG. During mortar coating, mortar is applied to predetermined locations on the outer peripheral surface of the nozzle brick a by manual operation or other suitable supply means while rotating the rotary table 1.

On the side of this nozzle brick a, there is a rubber blade plate 8 of the coating device 8.
Since the tips 8a' of a are arranged at an interval corresponding to the predetermined coating thickness of the mortar, when the supply of mortar reaches a predetermined amount, any more mortar is removed by the blade plate 8a. It is scraped off and then covered with a layer of mortar C of uniform thickness.

When this mortar coating operation is completed, the device 8 of the present invention:
It is rotated around the annular portion 8d as a fulcrum, and is moved from the coating operation position to the non-inventive operation position, that is, a position that does not interfere with the downward movement of the holder 9 described below.

Next, the metal case holder 9 is moved downward by fluid control of the air cylinder 10, and due to this downward movement, the metal case b held by the holder 9 is fitted into the mortar-coated nozzle brick a. Ru.

This state is shown in FIG. This insertion operation is
The rotation may be performed while the rotary table 1 continues to rotate, or may be performed while the rotation is stopped.

During this insertion operation, the holder 9 holding the metal case b is configured to be moved up and down in a position concentric with the nozzle brick fixed on the fixing base 5. , as shown in FIG.
Since 2a is configured to fit into the center hole 12b, it is possible to center it extremely accurately, and it is possible to fit the metal case b concentrically and accurately into the nozzle brick a. , the problem of deflection of the mortar coating layer C can be solved.

As shown in FIG. 5, when the insertion operation is completed, the holder 9
After opening door 9d and releasing the restraint from metal case b,
Under the control of the air cylinder 10, the holder 9 is moved upward to its original position, and the metal case b is
The mortar coating device 8 can be prepared for the next operation by removing the nozzle brick a to which it is attached and returning the mortar coating device 8 from the non-coating operation position to the coating operation position.

In this way, in the device of the present invention, the metal case b can be attached to the nozzle brick a without causing uneven thickness in the mortar coating layer C, and a high-quality product can be obtained. This type of deposition work can be carried out automatically and mechanically with high efficiency, for example,
It is possible to process 25 times more than conventional manual operations, which is approximately 10 times as much as in conventional manual operations, and has the feature of significantly improving work efficiency.

[Brief explanation of the drawing]

The drawings show an example of the implementation of the present invention, and FIG. 1 is a front view thereof;
Fig. 2 is a right side view of Fig. 1, Fig. 3 is a plan view of the mortar coating device shown in Figs. 1 and 2, and Figs.
FIG. 3 is a partially cutaway front view showing one use of the device of the present invention shown in FIG. 2 in the order of steps; In the figure, 1 is a rotating table, 2 is its rotating shaft, 3 is a rotation transmission mechanism, 4 is a motor, 5 is a fixed base, 6 is its protrusion,
7 is its fixed shaft, 8 is a mortar coating device, 9 is a metal case holder, 10 is an air cylinder, 11 is its piston rod, and 12 is a centering mechanism.

Claims (1)

[Scope of Claim for Utility Model Registration] ■ A rotary table having a fixing base for the nozzle brick on the top surface ■ A rotary table having a fixed base for the nozzle brick on the top surface ■ A rotary table on the side of the rotary table in order to level the applied mortar at a predetermined location on the outer peripheral surface of the nozzle brick to a uniform thickness. On the other hand, the mortar coating device is arranged so that it can be switched from the coating operation position to the non-painting operation position as appropriate. A metal case holder that moves up and down in a position concentric with the nozzle brick, and □■ Centering consisting of a center pin protruding downward from the top of the metal case holder and a center hole provided on the top surface of the nozzle brick fixing base. A metal case mounting device for a nozzle brick, characterized by comprising a mechanism.