JPH0242362Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a charging car used to store, transport, and reinsert the dummy bar removed from the slab in a continuous casting machine, and for example, a conveyor chain that moves along an arcuate path on the top surface. This invention relates to an improvement in a connection mechanism for connecting a dummy bar end member to a conveyor chain of a charging car.

In bending type continuous casting equipment, a multi-link type flexible dummy bar is used, and at the beginning of casting, the slab is connected to the bottom of the dummy bar and pulled out from the mold by pinch rolls. Once the dummy bar has completed its leading role, it is removed from the tip of the slab, the head section is connected to the conveyor chain of the charging car, and the dummy bar is hoisted onto the charging car and stored. The charging car equipped with the dummy bar is moved to start the next continuous casting, and the dummy bar is inserted so that the bottom part is located in the mold, making it ready for casting. An example of this type of charging car is shown in Japanese Patent Publication No. 48-4296, and the conveyor chain is of an endless belt type, and the connection is changed by two locking devices to store the dummy bar and from above the mold. It is designed to allow the hanging of Conventionally, the connection mechanism between the conveyor chain and the dummy bar was generally complicated and required a lot of effort to attach and detach. Therefore, in this invention, the conveyor chain of the charging car is reciprocating, and the dummy bar can be charged without changing the connection. Store it on the car and insert it into the mold. The dummy bar is inserted into the mold by replacing the head and bottom parts of the end members of the dummy bar in the case of top insertion, or by the bottom insertion method (Japanese Patent Application No. 40,651/1986). However, since the present invention relates to a device for connecting a dummy bar to a conveyor chain, it is not limited to the type of operation of the charging car.

A typical connection method conventionally used for connection to a conveyor chain, which is a mechanism for mounting a dummy bar on a charging car, is to connect a dog b installed in chain a in Fig. 4A to a dummy bar end c.
There are two methods: one that fits into the hole d, one that uses a dovetail groove connection e as shown in Figure 4 B and C, and one that uses a manual winch-driven stop hook f. However, in the former method, relative slippage always occurs at the contact portion between the dummy bar and the dog due to vibrations and changes in tension due to chain operation, and is not satisfactory for holding and connecting heavy objects. In addition, the latter requires a lot of work to attach and detach, the connection part tends to deform, and since it is a dovetail groove connection, it is impossible for the hook side to follow the deformation of the dovetail groove, increasing the number of times the dummy bar head is used. and the safety of retention decreases.

The present invention has been made for the purpose of improving the functionality of the charging car by providing a connection structure that solves the problems of the prior art with respect to the connection between the conveyor chain of the dummy bar charging car and the dummy bar.

The connecting device for a dummy bar charging car for a continuous casting machine of the present invention is particularly characterized in that the connecting device has a hook member having a bifurcated tip for accommodating the end member of the dummy bar, and a hook member having a forked tip portion for accommodating the end member of the dummy bar. A hook pin that extends over the two prongs of the hook member and connects and disconnects them by inserting and removing them into pin holes, a relay link member, and a horizontal axis that is perpendicular to the insertion direction of the hook pin. one pin shaft member pivotally connected to the base;
The relay link member has another pin shaft member that connects the upper end of the relay link member to the conveyor chain of the dummy bar charging car via a spherical bearing.

Hereinafter, the present invention will be explained in detail with reference to embodiments shown in the accompanying drawings.

FIG. 1 shows a side view of the entire connecting device of a dummy bar charging car for a continuous casting machine and its related parts according to the present invention. The charging car 1 of this embodiment has a conveyor chain 2 and a chain wheel 3 on the arcuate upper surface of the traveling frame.
It is now possible to move back and forth by hanging around the area. A connecting device 5 that connects the front end member, that is, the head portion 4A of the dummy bar 4 to a specific link 2A of the conveyor chain 2 includes a hook member 6 and a relay link member 7 disposed between the two, which are connected to a hook pin 8 and a pin shaft. They are connected by members 9 and 10.

2 and 3 show details of the connecting device 5. FIG. Pin holes 6B and 6C are formed in the two-pronged tip portion 6A of the hook member 6 at left-right symmetrical positions, and pin holes 6B and 6C are formed in the dummy bar head portion 4A in the same manner. The two are connected by fitting the head portion 4A therein and inserting the hook pins 8 into the rows of pin holes 6B, 4B, and 6C, respectively.
The pin holes 6B, 6C, and 4B are so-called "blind holes" with a slightly larger clearance than the hook pin 8, so that the hook 8 can be easily inserted and removed.

On the other hand, the links 2A and 2A on both sides at a specific position of the conveyor chain 2 are connected and integrated by the hook support 11, and the support part 11A in the center is
The upper end of the relay link member 7 is pivotally connected to the pin shaft member 10 via a spherical bearing 12, and the base 6D of the hook member 6 is pivotally connected to the lower end of the relay link member 7 by another pin shaft member 9.

Since the pin shaft member 9 has a circular arc shape in which the dummy bar is mounted, it serves as a fulcrum for bending the relay link member 7 and the hook member 6 so that the hook member 6 also follows the circular arc. Therefore, the axis of the pin shaft member 9 is made to be perpendicular and horizontal to the insertion direction of the hook pin 8. Since the support portion 11A and the relay link member 7 are connected by the pin shaft member 10 via the spherical bearing 12, it is possible to adapt to inclination in any direction between the two.

In addition to the basic configuration described above, the connecting device 5 of the present invention includes equipment that makes handling of the hook pin 8 advantageous. That is, there are stop grooves 8A, 8 near both ends of the hook pin 8.
Provide B. Each hook pin 8 passes through a pin support 13 provided on the front surface of the two prongs 6A of the hook member, as will be described later, and is held thereby. A keeper plate 14 is attached to the pin support 13 and the spring 1
5 is pressed against the hook pin 8. In this manner, the keeper plate 14 is fitted into and locked in the stop groove 8A at the insertion position X of the hook pin 8, and the keeper plate 14 is fitted into and locked in the stop groove 8B at the extraction position Y of the hook pin 8, thereby fixing the hook pin position. The spring 15 prevents the stop groove 8 of the keeper plate 14 from vibration etc.
Prevent separation from A. Reference numeral 16 denotes a ring for extraction attached to the hook pin 8.

The pin support 13 has a trunnion shaft 13A that extends from side to side, so that the hook member bifurcated tip 6
It is pivotally supported by a mounting plate 17 on the front side of A. Therefore, hook pin 8 is pin support 1
3, it can be turned upward from the extraction position Y to the storage position Z. Hook member 6 at storage position Z
It is held in the retracted state by the attached locking bar 18 and fixing pin 19.

In the present invention having the above configuration, the dummy bar 4 is taken in and stored and inserted into the mold in the following order.

The position of the charging car 1 is determined and the conveyor chain 2 is lowered so that the two-pronged portion 6A of the hook member 6 fits into the head portion 4A of the dummy bar 4 at a predetermined position level. After confirming that the pin holes 6B and 6C of the hook member 6 and the pin hole 4B of the dummy bar head portion 4A are aligned, the locking bar 17 is released and the hook pin 8 is rotated from the heat absorption state Z to the extraction position Y, and the locking pin 8 is stopped. The keeper plate 14 fitted in the groove 8B is removed by hand and inserted into the inserted state X. The hook pin 8 is the hook member 6
At the position where the keeper plate 14 is supported by the pin hole 6C on the rear surface, the keeper plate 14 is automatically fitted into the stop groove 8B by a spring force, and the connection is established.

When the above connection work is completed, the dummy bar 4 is hoisted and mounted on the charging car 1.

To insert the dummy bar into the mold, proceed in the reverse order.

According to the present invention, the following effects can be obtained.

() Since the connecting device has a structure in which the hook member is suspended via a spherical bearing, the dummy bar is centered vertically when it starts to be rolled up and becomes suspended, so that the center of the dummy bar and the center of the conveyor chain are aligned. Therefore, there is no danger of falling off the conveyor chain while being mounted on a charging car. Also, for the same reason, it can be easily inserted into a mold.

() Connection, storage, and insertion of the dummy bar into the mold can all be performed from the front, making it safe and easy.

() Since the dummy bar insertion work can be done by a small number of people and in a short time, casting preparation time is shortened, contributing to improved productivity.

() The connection state is no longer affected by the deformation of the dummy bar head, and the frequency of replacing the dummy bar head can be reduced.

() For the same reason, the reserve stock of the dummy bar head section is also less than that of the conventional method.

[Brief explanation of the drawing]

Fig. 1 is a side view of the entire connecting device of the dummy bar charging car for a continuous casting machine of the present invention and its related parts, and Fig. 2 is a front view showing details of the connecting device.
Fig. 3 is a vertical side view of the same, Fig. 4A is a longitudinal side view of the connection part of the prior art, Fig. 4B is a front view of another connection part of the prior art, and Fig. 4C is a longitudinal side view of the connection part of the prior art. be. 1...Dummy bar charging car, 2...Conveyor chain, 2A...Link, 3...Chain wheel,
4...Dummy bar, 4A...Head part, 4B...
Pin hole, 5... Connection device, 6... Hook member, 6
A...Two prongs, 6B, 6C...Pin hole, 6D...
... Base, 7 ... Relay link member, 8 ... Hook pin, 8A, 8B ... Stop groove, 9 ... Pin shaft member, 1
0...Pin shaft member, 11...Hook support, 1
1A...Support part, 12...Spherical bearing, 13...
...Pin support, 13A...Trunion shaft, 14
... Keeper plate, 15 ... Spring, 16 ... Ring ring, 17 ... Mounting plate, 18 ...
Locking bar, 19...Fixture pin, X...
...insertion position, Y...extraction position, Z...storage position,
a... Chain, b... Dog, c... Dummy bar end, d... Hole, e... Dovetail connection, f... Stop hook.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A device for connecting a dummy bar end member to a conveyor chain of a dummy bar charging car for a continuous casting machine, comprising a hook member having a bifurcated tip for accommodating the dummy bar end member; , a hook pin that connects and disconnects the dummy bar end member and the two prongs of the hook member by inserting and removing them into pin holes, a relay link member, and a base of the hook member and a lower end of the relay link member in the insertion direction of the hook pin. A chain consisting of one pin shaft member that is pivotally connected in a perpendicular horizontal axis direction and another pin shaft member that connects the upper end of the relay link member to the conveyor chain of the dummy bar charging car via a spherical bearing. Connection device for dummy bar charging car for casting machine. (2) The hook pin is locked to the pin support at the end of the ejection stroke, and the pin support is pivotally supported by the mounting plate provided at the front of the forked tip of the hook member, so that the hook pin can be moved to the end position of the ejection stroke and stored in the upright position. 1. A connection device for a dummy bar charging car for a continuous casting machine as set forth in claim (1) of the utility model registration, characterized in that the connection device is capable of pivoting between positions.