JP2018087367A - Mold replacement mounting jig for copper converter slag exhaustion mold conveyor and method for replacing mold using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mold mounting jig for replacing a mold that safely facilitates a new mold mounting work in a mold replacement procedure of a copper converter slag exhaustion mold conveyor and a method for replacing the mold using the jig.SOLUTION: A mold mounting jig comprises: a concave shaped jig body including a pair of right and left frames each with suspension ring at both ends thereof, the frames having different lengths from each other; a mold hanger provided in a protruding manner at a center part of a concave part of the jig body; and a support frame fixedly attached to an outer face of a bottom part of the concave part of the jig body with the suspension rings. A method for replacing a mold includes the steps of: hanging the mold mounting jig including a mold displacement prevention stopper fixedly attached on an outer face side of the support frame and the mold hanger of the jig body onto an inner side of a mold body; holding both sides of the mold with the frames with the suspension rings; bringing a mold flange into contact with the mold displacement prevention stopper; and securely fixing the mold body in a stationary position.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a mounting jig used when replacing a mold in a mold conveyor for discharging a copper converter slag and a method for exchanging a mold using the jig.

The molten converter slag discharged from the copper converter is usually in a high temperature state of 1200 to 1300 ° C., and it is necessary to cool to a desired temperature and solidify in order to process in the next step.
Therefore, in this process, a mold conveyor for copper converter slag discharge, in which a mold is attached to a chain conveyor, is usually used. Generally, it is transported to the next process.
However, since the molten slag discharged from the copper converter is intermittently cast by the batch operation in the mold of the mold conveyor for discharging the copper converter slag, the mold repeats thermal expansion and contraction. It is necessary to replace the mold periodically because the damage to the pouring part becomes severe.

FIG. 5 illustrates a copper conveyor slag discharge mold conveyor as an object of the present invention. (A) is a schematic plan view showing a part of the copper converter slag discharge mold conveyor, and (b) is the same. It is a schematic longitudinal cross-sectional front view of a mold conveyor. In the figure, 1 is a mold conveyor, 2 is a mold comprising a track-shaped mold main body 2-1 having six slag reservoirs 2-2, 3 is a chain, 4 is a mold 2 on a chain 3 Attachment 5 for mounting, 5 is a mold flange, 6 is a bolt and nut for fastening the mold, 7 is a roller, 8 is a rail, and 9 is a conveyor mount.
That is, the copper conveyor slag discharge mold conveyor which is the subject of the present invention is a chain hung on the rail 8 installed on the upper stage 9-1 and the lower stage 9-2 of the conveyor installation base 9 via the roller 7. 3, the mold 2 is configured to be attached via an attachment 4, and each mold 2 has six slag reservoirs 2-2 on a substantially competition track-shaped main body 2-1, A long seam plate 2-3 protrudes from one side of the opening end of the mold body 2-1 adjacent in the direction, and the seam plate 2-3 of the adjacent mold body 2-1 and the opening end on one side. The parts overlap each other vertically and are connected without gaps, and the mold flanges 5 and attachments 4 at both ends of each mold 2 are fastened by mold fastening bolts and nuts 6.

In the mold conveyor for discharging the copper converter slag having the above configuration, when the slag reservoir 2-2 of the mold body 2-1 into which the molten slag is cast is severely damaged and the mold needs to be replaced, When the mold main body 2-1 having the severely damaged slag reservoir 2-2 is positioned at the lower stage 9-2 of the conveyor installation base 9, the left and right attachments 4 of the mold main body 2-1 are broken and moved downward. The new mold main body 2-1 was attached to a space (between the existing mold main bodies) where the mold body was dropped and removed from the mold conveyor and the damaged mold main body was removed.
Incidentally, in this mold replacement operation, first, a lifting wire is hung on the mold flange 5 protruding from both ends of the new mold body 2-1, thereby avoiding interference with the existing chain 3 and the existing mold body 2-1. Therefore, the new mold body 2-1 suspended by the wire is held in an inclined state of about 45 degrees, and then the new mold body 2-1 is fitted between the existing mold bodies 2-1 by the chain block. Pull up to the position of the attachment 4 in a proper shape.
Subsequently, the new mold body 2-1 pulled up to a predetermined position is rotated and a round bar is inserted into the bolt holes of the mold flange 5 and the attachment 4 to perform alignment, and the bolt holes of the mold flange 5 and the attachment 4 are matched. By the way, the work is completed by attaching the new mold body 2-1 to the mold conveyor with the fastening bolts and nuts 6.

However, the above-described conventional mold exchanging method of the copper conveyor slag discharge mold conveyor has the following problems.
That is, in the conventional mold changing method, the new mold body 2-1 which is a heavy object is lifted and held only by the wire, so that the new mold body 2-1 may not be firmly gripped and may slide down during lifting. In addition, an operator approaches the new mold main body 2-1, which is lifted and held at a predetermined height position only by a wire, and rotates the new mold main body 2-1, and the mold flange 5 and the attachment 4 In order to adjust the position of the bolt hole, if the wire is detached from the new mold body 2-1 during the position adjustment work, or if the wire itself cannot withstand the weight of the new mold body 2-1, it breaks. There is a problem that the new mold body 2-1 may fall and cause a serious accident.
The present invention has been made to solve such a problem. In the mold exchanging operation of a mold conveyor for discharging a copper converter slag, a mold exchanging jig for safely performing an attaching operation of a new mold, and this An object of the present invention is to provide a mold replacement method using a jig.

The mold changing mounting jig of the mold conveyor for discharging the copper converter slag according to the present invention is not the method of hanging the wire directly on the new mold body for replacement, and the new mold body or the lifting chain or wire. Is a mold replacement mounting jig that is disposed between the upper and lower ends of the new mold body to the position of the attachment, and has a structure in which one is long at the left and right ends and the other is short. A concave jig body with a hanging ring made of a plate-like member having a pair of left and right frames with a hanging ring, a mold hook projecting at the center of the concave part of the jig body, and a concave part of the jig body with the hanging ring A plate-like member which is composed of a support frame fixed to the outer surface of the bottom part and is positioned between the short frame and the mold hook of the jig body and fixed to the outer surface side of the support frame. It is characterized in further comprising a mold displacement prevention stopper made.
In the mold exchanging method of the mold conveyor using the mold exchanging mounting jig according to the present invention, the jig is first arranged between the lifting chain or wire and the mold main body, and the concave portion of the jig main body is arranged. Molded with a pair of left and right hanging ring frames with different lengths on the left and right ends of the jig, with the mold hook projecting in the center hanging inside both ends of the mold body The mold flange protrudes outward from the concave portion of the jig body, and the mold flange is brought into contact with a mold deviation prevention stopper to stably fix the mold body in place, The chain of the chain block or the lifting cord is attached to the suspension ring provided at the tip of each of the long frame and the short frame of the jig body. The chain is pulled up to hold the mold body at an angle of about 45 degrees, the mold flange is pulled up to the position of the attachment, and the chain block hung on the long frame side While fixing the length of the chain or the lifting wire, the mold flange and the attachment while lifting the chain or the lifting wire of the chain block hung on the short frame side with the long frame side as a fulcrum The bolt hole position is adjusted.

  According to the mold changing mounting jig of the mold conveyor for discharging the copper converter slag of the present invention described above, the mold lifting state is stabilized by fixing the new mold body with the mold changing mounting jig, Even if the mold is tilted during the adjustment operation for adjusting the bolt hole position of the attachment, it will not slide down, and the bolt hole position can be adjusted by rotating the mold. Therefore, the operator can perform the mold pulling operation and the bolt hole position adjusting operation from a position away from the mold, and the safety of the new mold mounting operation can be improved.

It is a schematic perspective view which shows the structural example of the mounting jig for mold replacement | exchange of the mold conveyor for copper converter slag discharge | emission which concerns on this invention. It is the schematic which shows the use condition of the mounting jig for mold exchange shown in FIG. 1, and is a schematic plane sectional view which shows the principal part of the state which hung the mounting jig for mold replacement on the mold inner side. It is the schematic which shows the use condition of the mold replacement mounting jig same as the above, and is explanatory drawing which shows the principal part of the state in the middle of pulling up of a mold main body with the mold replacement mounting jig. It is the schematic which shows the use condition of the mounting jig | tool for mold exchange same as the above, and is a general | schematic longitudinal cross-sectional front view which shows the principal part of the state fastened by making the bolt hole position of a mold flange and an attachment correspond. The copper conveyor slag discharge mold conveyor which is the object of the present invention is illustrated, (a) is a schematic plan view showing a part of the copper conveyor slag discharge mold conveyor, and (b) is the mold conveyor. It is a schematic longitudinal front view.

  In FIG. 1, 10 is a mold replacement mounting jig according to the present invention, 10-1 is a jig body with a concave hanging ring, 10-2 is a frame with a long hanging ring, and 10-3 is a short hanging ring. Frame with ring, 10-2a and 10-3a are hanging rings, 10-4 is molded, and 10-5 is a support frame fixed to the bottom of the concave portion of the jig body 10-1 having a concave shape. Reference numeral -6 denotes a mold misalignment prevention stopper, and 11 denotes a chain of a chain block (not shown) or a lifting wire (hereinafter referred to as a chain or the like).

The mold exchanging jig 10 of the present invention has a long frame 10-2 with one attached to the end of the left and right ends and a suspension ring 10-2a attached to the tip, and the other attached to the tip 10a. And a jig body 10-1 having a concave hanging ring made of a plate-like member having a short frame 10-3 attached with a protrusion, and the protruding height is lower than the short frame 10-3 of the jig body. A plate mold hook 10-4 projecting from the center of the bottom of the recess of the jig body 10-1 with the hanging ring, and a support frame 10-5 fixed to the outer surface of the bottom of the recess of the jig body 10-1 with the hanging ring. And a mold deviation prevention stopper 10-6 fixed to the outer surface of the support frame 10-5.
Here, the mold exchanging jig 10 is composed of a plate-like member having a pair of left and right hanging ring-attached frames 10-2 and 10-3 having a long length at the left and right ends and a short length at the other end. The concave jig body 10-1 with a hanging ring is used in order to avoid the interference with the existing mold body 2-1, and the chain etc. 11 of the chain block is attached to each of the frames 10-2 and 10-3. This is because the new mold main body 2-1 is held at a state where it is inclined at about 45 degrees by being hung on the attached hanging rings 10-2a and 10-3a.
The mold misalignment prevention stopper 10-6 is a stopper for preventing the new mold body 2-1 lifted by the chain block from being displaced downward and stabilizing it in a fixed position. The plate member is located between the short frame 10-3 and the mold hook 10-4 and is fixed to the outer surface of the support frame 10-5, and the shape thereof is not particularly limited.

When exchanging the mold using the mold exchanging fixture having the above-described configuration, as shown in FIG. 2, the mold hook 10-4 of the jig main body 10-1 with the hanging ring is attached to both ends of the new mold main body 2-1. The mold flange 5 is hung on the inside and protrudes outward from the concave portion of the jig body 10-1, and the mold flange 5 is brought into contact with a stopper 10-6 for preventing mold displacement, so that a new mold body 2-1 is mounted. Securely fix in place.
Next, a chain or the like 11 of the chain block is hung on the suspension rings 10-2a and 10-3a at the distal ends of the long frame 10-2 and the short frame 10-3 of the jig body 10-1 with the suspension ring. The new mold body 2-1 is tilted at about 45 degrees by the chain block, and the mold flange 5 is pulled up to the position of the attachment 4.
Subsequently, the bolt hole positions of the mold flange 5 and the attachment 4 are adjusted. At this time, as shown in FIG. 3, the length of the chain etc. 11 of the chain block hung on the long frame 10-2 side is fixed. In addition, the position of the bolt hole between the mold flange 5 and the attachment 4 is adjusted while pulling up the chain 11 of the chain block hung on the short frame 10-3 side with the long frame 10-2 side as a fulcrum. . When adjusting the position of the bolt hole between the mold flange 5 and the attachment 4, the new mold body 2-1 is fixed and stable by the mold replacement mounting jig 10, so the new mold body 2-1 is tilted. As a result, the new mold body 2-1 can be rotated by the chain block and the bolt holes can be aligned, so that the mold can be exchanged by remote control. 1 replacement work can be performed safely.
When the bolt hole positions of the mold flange 5 and the attachment 4 are adjusted in this way, a new mold body is formed with the fastening bolts and nuts 6 when the bolt holes of the mold flange 5 and the attachment 4 are aligned as shown in FIG. 2-1 Installation on the mold conveyor is completed.
When the mounting of the new mold body 2-1 to the mold conveyor is completed, the mold replacement mounting jig 10 is detached from the new mold body 2-1 and collected by the chain block.

  As described above, according to the mold replacement mounting jig 10 of the present invention, the mold lifting state is stabilized by fixing the new mold body 2-1 with the mold replacement mounting jig 10, and the mold flange 5 and the attachment are fixed. As the mold is rotated during the adjustment work to adjust the position of the bolt 4, not only will it not slip off even if the mold is rotated, but it will also be possible to remotely lift the mold and adjust the position of the bolt hole. Can significantly increase the safety.

DESCRIPTION OF SYMBOLS 1 Mold conveyor 2 Mold 2-1 Mold main body 2-2 Slag reservoir part 3 Chain 4 Attachment 5 Mold flange 6 Mold fastening bolt and nut 7 Roller 8 Rail 9 Conveyor installation base 10 Mold replacement mounting jig 10-1 Concave shape Jig body 10-2 with a long hanging ring 10-3 frame 10-3 with a long hanging ring 10-2a with a short hanging ring 10-3a Hanging ring 10-4 Mold hook 10-5 Support frame 10-6 Mold displacement Stopper 11 Prevention Chain for chain block or wire for lifting

Claims (2)

  A jig body with a concave hanging ring made of a plate-like member having a pair of left and right hanging rings with different lengths, one at the left and right ends, and the other at a short length, and the central part of the concave portion of the jig body And a support frame fixed to the outer surface of the bottom of the concave portion of the jig body with the hanging ring, and is located between the short frame of the jig body and the mold hook, and the support A mold replacement mounting jig for a mold converter for discharging copper converter slag, comprising a stopper for preventing mold slippage comprising a plate-like member fixed to the outer surface side of the frame. The mold replacement mounting jig according to claim 1 is disposed between a lifting chain or wire and the mold body,
A pair of left and right suspensions with different lengths of the long and short lengths provided at the left and right ends of the jig, with the mold hook projecting at the center of the concave portion of the jig body hung inside the both ends of the mold body. Hold both sides of the mold with a frame with a ring, make the mold flange protrude outward from the recess of the jig body, and bring the mold flange into contact with the stopper for preventing mold displacement, so that the mold body is in place. Fixed stably,
Next, a chain or a lifting wire of a chain block is hung on a suspension ring provided at each end of the long frame and the short frame of the jig body, and the chain or wire is pulled up to move the mold body to about 45. Hold the state inclined at a degree and raise the mold flange to the position of the attachment,
Further, the length of the chain or the lifting wire of the chain block hung on the long frame side is fixed, and the length of the chain block hung on the short frame side is set using the long frame side as a fulcrum. A mold exchanging method of a mold conveyor for discharging a copper converter slag, wherein a bolt hole position of the mold flange and the attachment is adjusted while pulling up a chain or a lifting wire.

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