JPH082502B2 - Strip connection device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a strip connection device for connecting strips in a process line such as a hot dip galvanizing line.

[Prior Art] For example, in order to process a large number of thin plate (strip) coils wound in a coil in a steel process line in succession, before processing of one coil is completed, A method is employed in which the rear end is connected to the front end of the next coil (subsequent strip) to continuously supply the strip into the processing apparatus.

5 to 8 show a hot dip galvanizing line (hereinafter referred to as a plating line) which is such a process line. FIG. 5 is a line configuration diagram showing the entire plating line, and FIG. FIG. 7 is a perspective view showing a seam welder which is a strip connection device and a puncher, FIG. 7 is a perspective view showing a detailed configuration of a carriage, and FIG. 8 is a side view showing a guillotine shear and a puncher.

First, the overall configuration will be described with reference to FIG. (1) is a foundation, (2) is a seam welder, (3) is a puncher,
The seam welder (2) and the puncher (3) form a strip connecting device. (4) is a loop car, (5) is a rail, (6) is a plating device, (7) is a roller,
The seam welder (2), puncher (3), and plating device (6) are provided on the foundation (1), and the loop car (4) is on a rail (5) supported by the foundation (1) (not shown). It is mounted so that it can be moved to the left and right in the figure.

(11) is a processing coil, and a strip (12) is wound in a coil shape. As shown in FIG. 5, the strip (12) from the processing coil (11) is passed between rollers (7) provided at various parts, and the seam welder (2), puncher (3), loop car ( From 4), it passes through the plating device (6) and is wound up to form a winding coil (14).
Reference numeral (15) denotes a next processing coil, which is placed at a standby position beside the processing coil (11) with the tip portion (16) of the strip (12) extended.

Next, the overall operation will be described. The strip (12) from the processing coil (11) is continuously fed and sequentially passes through the seam welder (2), the puncher (3), the loop car (4) and the plating device (6), and by the plating device (6). The galvanized product is wound up to form a winding coil (14). At this time, each roller (7) guides the strip (12). Although the details will be described later, when the strip (12) is sequentially fed out from the processing coil (11) and disappears, the rear end portion (13) of the strip (12) from the processing coil (11) which is the preceding strip (see FIG. 8). (Refer to FIG. 4) is temporarily stopped, and the strip (12) from the next processing coil (15) is welded to this, and the strip (12) is continuously supplied from the next processing coil (15) to the plating apparatus (6). While the rear end portion (13) of the strip (12) is stopped, the loop car (4) moves to the right in FIG. 5 to store the strip between the loop car (4) and the roller (7). Send out (12) and remove the rear end (1
Even if 3) is stopped, the strip (12) in the plating device (6) is fed at a constant speed and processed continuously. This will also be described later in detail, but the puncher (3) is used to distinguish the welded strip (12) from the welded processing coil (11) and the strip (12) from the next processing coil (15) at the welded portion. Makes a hole in the weld.

Next, the details of the seam welder (2) and the puncher (3) will be described with reference to FIGS. 6 and 7. First, the structure of the seam welder (2) will be described. (21) is a common base and is fixed to the foundation (1) (Fig. 5).
Reference numeral (22) is a carriage, which is driven by a carriage driving device (23) provided on the common base (21) in a direction perpendicular to the traveling direction A of the strip (12) on the common base (21). (24) is a guillotine shear, and is a lower shear holder (26) provided with two lower blades (25) and two straight lines above the lower shear holder (26) facing the lower blade (25). And an upper shear holder (28) which is a moving member provided with an upper blade (27) which is a circular moving blade,
The upper shear holder (28) is reciprocally driven in the vertical direction in the figure by a cylinder (29) fixed to the carriage (22).
(30) is a disk-shaped lower electrode wheel for seam welding, (31) is a disk-shaped upper electrode wheel provided above and facing the lower electrode wheel (30), and a pressing cylinder (32) And is driven up and down by the motor so that the lower electrode wheel (30) and the upper electrode wheel (31) are energized. (33) is a welding transformer, which feeds power to the lower electrode wheel (30) and the upper electrode wheel (31) through the flexible conductor (34). Note that (35) is the carriage (2
It is the deck (35) provided in 2), and the plating line can be monitored from the deck (35) if necessary.

Reference numeral (36) is an inlet side clamp, and (37) is an outlet side clamp, which are provided on the inlet side and the outlet side of the strip (12) with the carriage (22) interposed therebetween. It is configured so as to sandwich in the direction and be restrained.
The outlet side clamp (37) is fixed to the common base (21), and the inlet side clamp (36) is reciprocally driven in the traveling direction A of the strip (12) by a cylinder, though not shown. It

(38) is an operation stand, (39) is a control panel (6th
Fig.), The control panel (39) controls the entire seam welder (2), and the operation stand (38) is used for manually operating the seam welder (2) individually and is provided with a control switch and the like. Has been.

The seam welder (2) is configured as described above and operates as follows. In FIG. 5 and FIG. 6, when the strip (12) from the processing coil (11) currently being processed disappears, the rear end portion (13) of the strip (12) from the processing coil (11) is welded to the seam welder. It is stopped at the position of the output side clamp (37) (FIG. 8) of (2) to bring it to the state of FIG. 8, and is clamped up and down by the output side slump (37) to restrain the rear end portion (13).
The rear end (1) of the strip (12) from the processing coil (11)
While 3) is stopped by being restrained by the outlet clamp (37), the loop car (4) (Fig. 5) moves to the right and the strip (12) is continuously supplied to the plating device (6). . Next, the subsequent processing coil (15) which is the trailing strip
The front end portion (16) of this is fed out, stopped in the state shown in FIG. 8, and clamped up and down by the entrance side clamp (36) to be restrained. At this time, the rear end portion (13) of the strip (12) from the processing coil (11) and the leading end portion (16) of the strip (12) from the next processing coil (15) are 2 as shown in FIG. The lower blades (25) project slightly toward the center side, and in this state, the cylinder (29) drives the upper shear holder (28) downward to move the lower blade (25) and upper blade (27) to the rear. The end (13) and the tip (16) are cut in the width direction of the strip (12). After cutting, the entry side clamp (36) is moved to the rear end (13) (right side in FIG. 8) by a cylinder (not shown) while the front end (16) is being held, and the rear end (13) is The leading end (16) is slightly overlaid and stopped, and the carriage (22) is moved to the sixth position by the carriage drive device (23).
The lower electrode wheel (30) and the upper electrode wheel (31) are moved to the front side in FIGS.
It pushes up and down the overlapping portion of the carriage, and the welding transformer (33) moves the carriage (22) further forward while applying a current between the lower electrode wheel (30) and the upper electrode wheel (31). By doing so, the rear end (13) and the front end (16)
Seam welding is performed while crushing the overlapping portion of (3) to connect the rear end (13) and the front end (16).

When the front end (16) is connected to the rear end (13), the carriage (22) returns to its original position, and the output side clamp (37),
Rear end (13) and front end (16) by the entry side clamp (36)
Is released, the rear end portion (13) is sent in the direction A, and the welded portion between the rear end portion (13) and the front end portion (16) is punched by the punch (42) of the puncher (3). When the position shown in the figure) is reached, stop the rear end (13) again.

Next, the puncher (3) will be described with reference to FIG. (41) is a die, which is fixed to the foundation (1). (42) is a punch, and the frame (43) of the puncher (3)
The cylinder (44) is provided in the vertical direction of FIG. 8 to drive the strip (12) between the die (41) and the die (41) by shearing to make a hole.

Now, when the welded portion of the rear end portion (13) and the front end portion (16), which are seam welded as described above, is sent to the position of the puncher (3) and stopped, the punch (42) moves to the cylinder. (Four
It is driven by 4) and descends to punch a hole in this weld. After the shearing of holes is completed, the strip (12) is sent out from the coil (15) to be processed next faster than the line speed in the plating device (6), and the loop car (4) (Fig. 5) is generated according to the difference in speed. Moves to the left and returns to the original state, the feeding speed of the strip (12) from the next processing coil (15) is also returned to the steady state, and the processing of the strip (12) is continued.

As described above, the seam welder (2), the puncher (3),
By the operation of the loop car (4), the galvanizing process is continuously performed without stopping the feeding of the strip (12) in the plating device (6), and it is opened by the puncher (3) in the subsequent process as necessary. The hole is detected by a photoelectric tube or the like.

Now, in the conventional strip connection device configured as described above, the rear end portion (13) of the strip (12) from the processing coil (11) and the tip end of the strip (12) from the next processing coil (15). Twice when seam welding with the part (16) and when punching holes at this welding point with the puncher (3),
The strip (12) must be stopped, and the total time required to connect the strip (12) and finish drilling is long, and therefore, the amount of the strip (12) stored in the loop car (4) is also large. Met. In addition to the increase in the storage amount of the loop car (4), the seam welder (2) and the puncher (3) are provided separately from each other, which causes a problem that a large installation space is required.

Therefore, in order to solve these problems, FIG. 9 and FIG.
The device shown in the figure has been proposed. FIG. 9 is a front view of the guillotine shear, and FIG. 10 is a side view. In this conventional example, the die (41) is fixed to the lower shear holder (26), the punch (42) is fixed to the upper shear holder (28), and the punch (42) is moved up and down together with the upper shear holder (28). At the same time as cutting the rear end portion (13) and the front end portion (16) by the upper blade (27), at the same time as punching the rear end portion (13) by the punch (42), as shown in FIG. The puncher (3) provided separately from the seam welder (2) is integrated to reduce the stop time of the strip (12) and the installation space.

[Problems to be Solved by the Invention]

However, even in the conventional strip connecting device shown in FIG. 9, although the installation space can be reduced,
Since it is always necessary to perform drilling at the same time as cutting the rear end part (13) and the front end part (16), we cannot handle this if there is a request not to make a hole for the convenience of the subsequent process. It was In addition, if there is a strip thickness change part in the strip (12) in the middle of the coil, it is not necessary to connect this part, but it is desirable to perforate independently to clearly indicate that the plate thickness has been changed. However, there were problems such as not being able to deal with this as well.

The present invention has been made to solve the above-mentioned problems, and a part of the strip can be sheared at the time of connecting the strips or at any time independently of the connection of the strips, and the required space can be reduced. The purpose is to obtain a connection device.

[Means for solving the problem]

In the strip connecting device according to the present invention, the movable member provided with the movable blade for cutting the trailing end portion of the preceding strip and the leading end portion of the following strip is provided with a movable punch.

[Action]

The punch according to the present invention moves the moving member while being stopped at a predetermined position of the moving member so that the moving blade cuts the leading or trailing strip and cuts a part of the leading or trailing strip. By shearing and stopping at a predetermined position different from the above predetermined position, it is possible to prevent the preceding or following strip from being sheared even when the strip is moved together with the moving member. Further, by further moving the punch, it is possible to shear a part of the leading or trailing strip independently of the cutting by the moving blade.
That is, by providing the moving member with a punch, the required space can be reduced, and a part of the leading or trailing strip can be optionally sheared or not sheared.

〔Example〕

1 to 4 show an embodiment of the present invention. FIG. 1 is a front view of a strip connecting device in which a punch (42) is at an intermediate position, and FIG. 2 is a partially enlarged side view of the same. FIG. 3 is a front view when the punch is at the upper limit position, and FIG. 4 is a front view showing a state when punching a strip with the punch. In these figures, (51) is a guide cylinder, which is provided on the guillotine shear (24) and has a rod (52).
The punch (42) is supported by being guided so that it can move in the vertical direction. (53) is an upper and lower cylinder that moves the rod (52) in the vertical direction. Other configurations are the same as those of the conventional device shown in FIGS. 9 and 10, and therefore, corresponding components are designated by the same reference numerals and description thereof is omitted.

The punch (42) supported by the rod (52) vertically guided by the guide cylinder (51) fixed to the upper shear holder (28) in this embodiment is movable to the moving member according to the present invention. It is an example of the punch provided in.

Next, the operation will be described. When the strip (12) is punched together with the cutting of the rear end (13) and the front end (16), the punch (42) is as shown by the solid line in FIGS. 1 and 2. It is stopped at a position slightly below the upper limit position of the movement (the punch (42) shown by the dotted line in FIG. 2). In this state, the positional relationship between the punch (42) and the upper blade (27) is the same as that of the punch (42) and the upper blade (27) in the conventional device shown in FIG. By pushing down the upper shear holder (28), the upper blade (27) moves to the rear end (13) and the tip (16).
Punch (42) to cut the rear end (13)
The part (Fig. 2) is perforated.

If you do not want drilling when cutting the rear end (13) and the front end (16), move the punch (42) to its upper limit position for movement, as shown in the dotted line in FIG. 2 and in FIG. If this is done, the punch (42) will not reach the rear end (13) even when the rear end (13) and the front end (16) are cut by the upper blade (27), so the rear end (13) There is no hole in the hole.

In addition, since the plate thickness of the coil-wound strip (12) has been changed midway, seam welding is not necessary, but if you want to machine a hole for identification in this part, for example,
As shown in FIG. 4, the cylinder (29) lowers the upper shear holder (28) slightly downward from the state of FIG. 1 (in this state, the upper blade (27) does not touch the strip (12)), Further, the punch (42) can be moved downward by the upper and lower cylinders (53) to drill the strip (12).

In the above embodiment, when the strip (12) is not cut and it is desired to punch the strip (12), the upper shear holder (28) is slightly lowered and then the punch (42) is further lowered. The strip (12) was punched by moving it to the strip (12), but if the stroke of the upper and lower cylinders (53), that is, the movable distance of the punch (42) is set sufficiently large, the strip (42) alone moves. Drilling can be performed on 12).

Further, the strip connection device is not limited to the connection by seam welding as described above, the same effect can be obtained even if it is connected by a laser beam or the like, the processing device is not a hot dip galvanizing device, It goes without saying that a heat treatment or other processing device may be used.

〔The invention's effect〕

As described above, according to the present invention, since the punch is movably provided on the moving member, the installation space can be reduced, and a strip connecting device having a large degree of freedom that can shear a part of the strip at an arbitrary time can be obtained. To be

[Brief description of drawings]

1 to 4 show an embodiment of the present invention. FIG. 1 is a front view of a strip connecting device, FIG. 2 is a partially enlarged side view of a guillotine shear, and FIG. 3 is a punch at an upper limit position. A front view at a certain time, FIG. 4 is a front view showing punching with a punch, FIGS. 5 to 8 show a conventional plating line, FIG. 5 is a line configuration diagram, and FIG. 6 is a strip. FIG. 7 is a perspective view showing a seam welder as a connecting device and a puncher part, FIG. 7 is a perspective view showing a carriage part, FIG. 8 is a side view showing a guillotine shearer and a puncher part, and FIGS. Shows a conventional strip connection device,
FIG. 9 is a front view of the guillotine shear, and FIG. 10 is a side view. In the figure, (2) is a seam welder, (3) is a puncher (12) is a strip, (13) is a rear end portion, (15) is a next processing coil, (16) is a tip portion, and (24) is a guillotine shear. , (2
7) upper blade, (28) upper shear holder, (29) cylinder, (41) die, (42) punch, (51) guide tube,
(52) is a rod and (53) is an upper and lower cylinder. In the drawings, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims] 1. A linear moving blade provided on a moving member which is reciprocally driven by a reciprocating drive device cuts a rear end portion of a preceding strip and a leading end portion of a following strip and welds the both end portions. In the strip connecting device to be connected by means of the above, the moving member is provided with a punch movable in the direction of the reciprocating drive, and a part of the preceding or following strip can be sheared by the punch. Strip connection device.