KR20030092432A - Strip end joint apparatus - Google Patents

Abstract

PURPOSE: An apparatus for jointing the end part of strip is provided to simply and conveniently perform one touch type strip joint operation without conventional inconvenience to shorten operation time and prevent safety accident and prevent quality deterioration of strip after the strip joint operation. CONSTITUTION: The apparatus comprises a pressing means installed on an upper frame(11) so that the pressing means transmits force to the lower side; a moving frame(30) comprising guides(31) connected to the pressing means and elastically recovered by receiving force from the pressing means; a push means(40) comprising push body(41) having a certain length(41) which is installed on the bottom of the moving frame(30), and on a central part of which penetration hole(41a) is formed, joint nail(45) installed at a lower part of the penetration hole(41a) of the push body(41), and push rod(42) installed at an upper part of the joint nail(45) and connected to the moving frame(30); and groove frames(50) in which slot(51) is formed at one side part of lower frame(12) corresponding to the joint nail(45) installed at the push means(40) so that the connecting nail(45) is bent by the slot(51), wherein the pressing means comprises hydraulic cylinder and hydraulic pressure generating part, wherein guides(43) equipped with elastic members(44) are connected between an upper part of the push body(41) and the moving frame(30), and wherein magnet(46) for fixing head(45a) of the joint nail(45) is installed between an upper part of the joint nail(45) and a lower part of the push rod(42).

Description

Strip end joint apparatus

The present invention relates to a strip end connecting device for joining the separated strips to each other, and more particularly, plate-shaped strips (steel plates) wound on a plurality of rolls are cut to change or reroute the rolls. The present invention relates to a strip end connection device for connecting to maintain a continuous winding state.

In general, steel mill cold rolling process is equipped with a facility for continuous continuous electroplating of the carousel type, as shown in Figure 1, among which there are a lot of mailing operations due to roll replacement, plate breaking and rerouting in the process This is the flattening cell 1.

After the strip is cut and the corresponding work such as roll change or rerouting is completed, the strip must be connected again. This connection is generally performed on the top of the conductive roll (2) and the refraction roll (3) and the fume duct (4). The welding base 5 is supported under the strip 6 to be connected between the lower portions of the bottom), and the spotted two strips 6 are welded with a welding machine, and then taped to cover the weld surface neatly. This completes the connection of this series of strip ends.

However, the conventional strip end connection work as described above has to be carried out in a narrow and unstable place for a long time, so the risk of safety accidents of workers is high, roll damage, fire accidents and welding and welding Various problems arise, such as the shape of an iron plate becoming poor due to the fall of the foreign substance which arose and the heat deformation by welding heat.

The present invention has been proposed in order to solve the problems as described above, the object is to provide a one-touch operation without the inconvenience of the conventional strip connection operation is carried out at the time of work for changing the path of the roll change or the iron plate in the continuous cold rolling equipment The simple and simple operation reduces work time, prevents safety accidents, and above all, prevents strip quality from deteriorating after connecting the strips.

1 is a schematic view showing a conventional strip connection operation,

2 is a perspective view showing a strip connecting apparatus according to the present invention;

3 is a schematic cross-sectional view of a strip connecting apparatus according to the present invention;

4 is an enlarged view showing part “A” of FIG. 3;

5 is an operational state diagram of the present invention.

※ Explanation of symbols about main part of drawing ※

1: Plating Cell 2: Conduction Roll

3: refractive roll 6: strip

10 device of the present invention 11: upper frame

12: lower frame 20: pressing means

21: push handle 22: pressure generating unit

23: hydraulic hose 24: hydraulic cylinder

25: piston 30: moving frame

40: push means 41: push body

42: push rod 45: coupling nail

46: magnet 50: groove frame

51: longevity

In order to achieve the above object, the present invention provides a strip end portion connecting device for connecting a strip end portion, comprising: pressing means installed on an upper frame to transmit a force in a downward direction; A moving frame connected to the pressing means, the guide being elastically restored by receiving the force provided by the pressing means; The push body is installed on the bottom of the moving frame and the central portion of the push body of the predetermined length formed with a through hole, a coupling nail provided in the lower portion of the through hole of the push body, and a push rod connected to the moving frame on the top of the coupling nail. Push means made; And a groove frame formed with a long groove for allowing the coupling nail to be bent at one side of the lower frame corresponding to the coupling nail provided in the pushing means.

Hereinafter, the present invention will be described with reference to the accompanying drawings.

Figure 2 is a perspective view showing a strip connecting device according to the present invention, Figure 3 is a schematic cross-sectional view of the strip connecting device according to the present invention, Figure 4 is an enlarged view showing a portion "A" of Figure 3, Figure 5 is an operational state diagram of the present invention to be.

2, after cutting the strip 6 in order to change the roll 3 or to change the path of the strip 6 wound on the roll 3, the separated strips 6 are connected to each other so as to be connected to each other. The ends of the two strips 6 overlap each other and the strip end connecting device 10 of the present invention is inserted into the overlapping portions of the strips 6 as shown in the drawing. When the external force is applied to the pressurizing means 20 of the present strip end connecting device, the strips 6 which are separated by the overlapping portions of the two strips 6 are coupled to each other by a coupling nail (not shown) are connected again.

Referring to the configuration of the strip end connection device 10 according to the present invention in more detail with reference to Figures 3 and 4, the present invention is largely moved by the pressing means 20, the pressing means 20 Moving frame 30, the push means 40 and the end of the coupling nail 45 for driving the coupling nail 45 to the overlapping strip 6 is installed on the movable frame 30 strip 6 It is composed of a groove frame 50 to be completely coupled to each other.

The pressing means 20 is installed on the upper frame 11 located at the top of the device is configured to transmit a force in the lower direction. That is, the pressurizing means 20 is a hydraulic generating unit 22 filled with a working fluid so that hydraulic pressure is generated when an external force is applied to the hinged push handle 21 and the hydraulic generating unit 22 is connected to a hose or a pipe. A hydraulic cylinder 24 connected with a member 23 to receive hydraulic pressure and a hydraulic cylinder 24 drawn out from the hydraulic cylinder 24 by hydraulic pressure to be connected to the moving frame 30 to transfer a force to the moving frame 30. It consists of the piston 25.

As shown in the figure, the hydraulic generator 22 having a push handle 21 is installed on the upper frame 11 so that the operator can easily generate the hydraulic pressure by applying a force to the push handle 21. The hydraulic cylinder 24 is provided to allow the piston 25 of the hydraulic cylinder 24 to be drawn out downward through the upper frame 11 vertically. The hydraulic generator 22 and the hydraulic cylinder 24 are connected via a hydraulic hose 23 or a pipe so that the working fluid can be moved from the hydraulic generator 22 toward the hydraulic cylinder 24, or vice versa. It is supposed to be.

In addition, the movable frame 30 is vertically moved downward by the piston 25 of the pressing means as described above, wherein the movable frame 30 is the movable frame 30 at the bottom of the upper frame 11 By sliding along the guide 31 through the guide 31 installed vertically through the vertical movement is moved vertically in a more stable form. And when the external force applied to the pressing means 20 is removed, the elastic spring 32 which provides a restoring force to the moving frame 30 so that the moving frame 30 can be returned to its original initial position. 31) is provided.

The elastic spring 32 is installed between the lower end of the moving frame 30 and the lower guide 31 is elastically compressed when the moving frame 30 is moved downward to store the repulsive force. Of course, the elastic spring 32 may be installed between the upper portion of the movable frame 30 and the upper frame 11 to have a tension force to pull the movable frame 30 upward when the movable frame 30 is moved downward. However, it is preferable that the moving frame 30 is elastically compressed when moved downward as in the embodiment of the present invention.

On the other hand, the push means 40 is installed on the bottom of the moving frame 30, the push means 40 is again mediated through the guide 43, the spring 44 is installed on the bottom of the moving frame 30 Push rods (41) which are installed to be slidable up and down and push rods (42) for coupling the strips (6) by pushing the coupling nail (45) provided on the push body (41) toward the strip (6) It consists of.

That is, the push body 41 is installed so as to slide vertically on the guide 43 fixed to one side to the moving frame 30, the guide (between the moving frame 30 and the push body 41 ( On the 43, an elastic compressible spring 44 is provided.

In addition, a through hole 41a having a predetermined shape in a longitudinal direction thereof is formed at a central portion of the push body 41, and the push rod 42 having a bottom surface and one end connected to the bottom of the moving frame 30 in the through hole 41a. ) Is implied.

Here, the other end of the push rod 42 is provided with a push head portion 42a for pushing the coupling nail 45 with a predetermined force, the push head portion 42a of the through hole 41a It should be located about midway. Therefore, a coupling nail 45 for coupling the strips 6 to each other should be accommodated in the space formed by the lower portion of the push head portion 42a and the through hole 41a. That is, the receiving space of the coupling nail 45 is provided at the lower end of the push body 41 as much as the length of the coupling nail 45.

Thus, a coupling nail 45 having a head 45a having a shape matching the shape of the through hole 41a is inserted into the accommodation space, and the coupling nail 45 penetrates two strips 6. As the iron material having a strength and rigidity enough, the push contact with the head 45a of the coupling nail so that the coupling nail 45 can be easily loaded into the lower portion of the through hole 41a of the push body 41. At least one side of the push head portion 42a or the inner surface of the through hole 41a of the rod is provided with a magnet 46 for attaching the coupling nail head 45a to each other.

That is, when the coupling nail 45 is inserted into the lower portion of the through hole 41a, the coupling nail 45 does not fall to the lower portion and sticks to the push head portion 42a or the magnet 46 of the through hole 41a, thereby pushing the rod. The coupling nail 45 is easily loaded in the lower space of the 42.

On the other hand, the lower frame 12 integral with the upper frame 11 is located at a distance away from the end of the push means 40 by a predetermined distance, the push means 40 in the lower frame 12 ) Is provided with a groove frame 50 in which the long groove 51 is formed in a position corresponding to the coupling nail 45 loaded in the.

As shown in FIG. 5, the long groove 51 penetrates the overlapping end portion of the strip 6 by the push rod 42 and the end of the coupling nail 45 that enters the long groove 51 can be bent. It extends in one direction starting from the input point of (45). That is, the two strips 6 may be coupled to each other by the end of the coupling nail 45 passing through the overlapping portion of the strip 6 and then bent.

Therefore, the strip 6 is placed between the push means 40 and the groove frame 50 of the lower frame 12 so as to overlap each other, and when the external force is applied to the pressing means 20, the movable frame 30 moves downward. While being moved, the end of the push body 41 of the push means 40 installed on the bottom of the moving frame 30 is in contact with the groove frame 50 of the lower frame 12, in this state of the push body 41 Coupling nail 45 embedded in the receiving space is to match the long groove 51 of the groove frame (50).

At this time, when a greater force is applied to the pressing means 20, the push body 41 is caught by the groove frame 50 and can no longer be moved downward, and the guide 43 connected to the moving frame 30 is moved frame. 30, the moving frame 30 is lowered downward while protruding upward. At the same time, the push rod 42, which is connected to the moving frame 30 and inserted into the through hole 41a of the push body 41, is also forced downward to be coupled to the lower portion of the push rod 42. ) Is pressed against the strip 6.

In addition, handles 13 are provided on the top and sides of the device, respectively, to facilitate the transport of the device.

A series of operating states as described above will be described below with reference to FIG. 5.

Figure 5 (a) is placed on the groove frame 50 of the lower frame 12 to overlap the strip 6 separated in the strip end connection device 10 according to the present invention to force the pressing means 20 It shows the state before adding. In this state, when an operator exerts an external force on the push handle 21 of the pressurizing means 20, the hydraulic pressure is transmitted from the hydraulic generator 22 to the hydraulic cylinder 24 through the hydraulic hose 23, and the hydraulic cylinder 24 is applied. In the hydraulic pressure is converted into a force through the piston 25 to move the moving frame 30 downward.

The movable frame 30 moves downward along the guide 31 installed in the upper frame 11, wherein the elastic spring 32 installed in the guide 31 is elastically compressed by the movable frame 30. To store the repulsive force. As the elastic spring 32 of the guide 31 is compressed in this way, the movable frame 30 has the end of the push body 41 of the movable frame 30 as shown in (b), and the groove frame 50 of the lower frame 12. It will move until it reaches. Of course, at this time, the end of the coupling nail 45 built in the push body 41 also comes into contact with the overlapping strip 6 and the worker exerting an external force on the push handle 21 feels a slight grip.

Here, when the external force applied to the push handle 21 is made larger, the guide frame 43 is connected to the push body 41 by the moving frame 30 by the piston 25 of the pressing means 20. Moved downward along the push rod 42 connected to the moving frame 30 is pushing the coupling nail 45 toward the strip 6 so that the coupling nail 45 drills the overlapping strip 6 and the groove frame It enters into the long groove 51 of (50). Of course, at this time, since the push body 41 is fixed and the movable frame 30 to which the push rod 42 is connected moves downward, the elastic spring 44 installed in the guide 43 therebetween is also elastically compressed.

Thus, as shown in (c), the end of the coupling nail 45 penetrating the two-layer strip 6 reaches the long groove 51 and is bent in the long groove 51 by the force of the push rod 42 to be folded. Will be hit. Thus, when the two strips 6 are coupled to each other and remove the external force applied to the push handle 21 in this state, first, the elastic spring 44 between the moving frame 30 and the push body 41. The movable frame 30 is moved upward by the repulsive force of, and in addition thereto, the repulsive force of the elastic spring 32 installed in the guide 31 between the upper frame 11 and the movable frame 30 is added to the movable frame 30. Is moved to its original position.

Here, the repulsive force of the two elastic springs (32, 44) should be large enough to put the piston 25 of the pressing means 20 connected to the moving frame 30 back into the hydraulic cylinder (24). Thus, the piston 25 enters the hydraulic cylinder 24 again, and the working fluid inside the hydraulic cylinder 24 is moved toward the hydraulic generator 22 to refill the hydraulic generator 22.

When the strip connection operation is completed, the device 10 is removed from the strip 6 and the upper and lower portions of the strip 6 in which the coupling nail 45 is embedded are taped with filament tape, and all the operations are completed.

As described above, the iron plate connecting device according to the present invention can significantly reduce the working time and occur to the operator because the operator can simply work one-touch on the roll when connecting the iron plates cut by the sheet metal work in the cold rolling process of the steel mill. There is little risk of a safety accident, and above all, there is a unique effect that there is no roll damage and the quality of the steel sheet after the connection work is improved.

Claims (4)

A strip end connector for connecting strip ends, Pressing means 20 is installed on the upper frame 11 to transmit the force in the lower direction; A moving frame 30 connected to the pressing means 20 and having a guide 31 elastically restored by receiving a force provided from the pressing means 20; It is installed on the bottom surface of the movable frame 30, the push body 41 of a predetermined length having a through hole (41a) formed in the center portion, the coupling nail 45 provided in the lower portion of the through hole (41a) of the push body (41) ) And push means (40) consisting of a push rod (42) connected to and installed on the moving frame (30) on the top of the coupling nail (45); A groove frame 50 formed with a long groove 51 for allowing the coupling nail 45 to be bent at one side of the lower frame 12 corresponding to the coupling nail 45 provided at the push means 40; Strip end connection device, characterized in that configured. According to claim 1, wherein the pressing means 20 is a hydraulic cylinder (24) connected to the moving frame 30, the hydraulic generator 24 is connected to the hydraulic cylinder 24 and has a push handle (21) 22) strip end connection device characterized in that consisting of. According to claim 1, Strip end connection device characterized in that the guide 43 is provided with an elastic member 44 is connected between the upper end of the push body (41) and the moving frame (30). The strip end of claim 1, wherein a magnet 46 is installed between the upper portion of the coupling nail 45 and the lower end of the push rod 42 to fix the head 45a of the coupling nail 45. Secondary connections.