JPH0441080A - Strip joining device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a strip connecting device for connecting strips in a process line such as a hot-dip galvanizing line.

[Conventional technology]

For example, in a steel process line, in order to process many coils of thin plate (strip) wound into a coil shape in succession, before the processing of one coil is finished, the rear end of this coil (previous strip) is One method is to connect the tips of the coils (following strips) to continuously supply the strips into the processing device.

Figures 5 to 8 show a hot-dip galvanizing line (hereinafter referred to as a galvanizing line), which is such a process line. Figure 5 is a line configuration diagram showing the entire galvanizing line, and Figure 6 is a strip connecting device. FIG. 7 is a perspective view showing the detailed configuration of the carriage section, and FIG. 8 is a side view showing the guillotine shear and puncher section.

First, the overall configuration will be explained with reference to FIG. (1) is a foundation, (2) is a seam welder, and (3) is a puncher. The seam welder (2) and the puncher (3) constitute a strip connecting device. (4) is a loop car, (5) is a rail, (6) is a plating device, (7) is a roller, and the seam welding machine (2), puncher B), and plating device (6) are placed on the foundation (1). The loop car (2) is connected to the foundation (1
) is mounted on a rail (not shown) supported by a rail (51) so as to be movable in the left and right direction in the figure.

(11) is a processing coil, in which a strip (12) is wound into a coil shape. The strip (12) from the processing coil (11) is passed between the rollers ('7) provided at each section as shown in FIG.
), the puncher (3), the loop car (4), the winding coil (14) that passes through the plating device (6) and is wound up.
It is said that (15) is a next processing coil, which is placed in a standby position next to the processing coil (11) with the tip end (16) of its strip (12) extended.

Next, the overall operation will be explained. The strip (12) from the processing coil (11) is continuously fed to a seam welder (2).
), puncher (3), loop car 4, mesh device (6)
The strip is galvanized by the plating device (6) and is wound up into a winding coil (14), with each roller (7) guiding the strip (12). Although the details will be described later, when the strips (12) are unwound from the processing coil (11) one after another, the rear end (13) of the strip (12) from the processing coil (11), which is the preceding strip, is shown (Fig. 8). ) is stopped at - time and then the strip (15) from the next processing coil (15) is stopped.
2) are welded together and the strip (12) is subsequently fed from the subsequent processing coil 15) to the plating device (6). While the rear end (13) of the strip 12) is stopped, the loop car (A) moves to the right in Fig. 5, thereby removing the strip stored between the loop car (2) and the roller (2). (12) and strip (12)
Even if the rear end (13) from the plate is stopped, the plating device (6
The strips (12) in ) are fed at a constant speed and processed continuously. Although the details will be described later, the strip (12) from the welded processing coil (11) and the strip (12) from the next processing coil (15) are separated by a puncher B) in order to identify the welding location. A hole is drilled in the weld.

Next, details of the seam welding machine (2) and the puncher will be explained with reference to FIGS. 6 and 7. First, the configuration of the seam welding machine U will be explained. 21) is a common base and is fixed to the foundation (1) (Fig. 5). Ku22
) is a carriage, which is driven by a carriage drive device (23) provided on the common base (21) in a direction perpendicular to the running direction A of the strip (12) on the common base (21). (24) is a guillotine shear, with a lower shear holder (26) provided with two lower blades (25) and a lower shear holder (26) located above this lower shear holder (26).
5) and the upper blade (2) which is two linear movable blades facing each other.
7) is a moving member provided with an upper shaft holder (28).
), and the upper shaft holder (28) is reciprocated in the vertical direction in the figure by a cylinder (29) fixed to the carriage (22). (30) is a disc-shaped lower electrode ring for seam welding, (31) is a disc-shaped upper electrode ring provided above to face the lower electrode ring (30), and a pressing cylinder (32) The lower electrode ring 30) and the upper electrode ring (31) are driven vertically by the electrode ring 30) to conduct electricity between the lower electrode ring 30) and the upper electrode ring (31). (33) is a welding transformer with a flexible conductor (
34) to the lower electrode ring (30) and the upper electrode ring (31).
).

Note that (35) is a deck (35) provided on the carriage (22), and the plating line can be monitored from the deck (35) if necessary.

(36) is the entry side clamp, (37) is the exit side clamp, and the strip (12) with the carriage (22) in between.
The strip (12) is provided on the inlet side and the outlet side of the eighth
It is configured to be clamped and restrained in the vertical direction in the figure. In addition, the exit side clamp (37) is connected to the common base (2
1), and the entry side clamp (36), although not shown, is reciprocated in the running direction A of the strip (12) by a cylinder.

(38) is an operation stand, 39) is a control panel (Fig. 6), the control panel (39) controls the entire seam welding machine (2), and the operation stand 38) is a control panel for the seam welding machine (2).
) is used when manually operating the units individually, and is equipped with control switches and the like.

The seam welding machine (2) is configured as described above and operates as follows. In Figs. 5 and 6, when the strip (12) from the processing coil (11) currently being processed runs out, the rear end (13) of the strip (12) from the processing coil (11) is welded using a seam welder. (2) Exit side clamp (3
7) Stop it at the position shown in Fig. 8 to bring it into the state shown in Fig. 8, and clamp it vertically with the exit side clamp (37) to remove the rear end (13).
to restrain. Strip (1) from processing coil (11)
2) While the rear end (13) is restrained and stopped by the exit side clamp (37), the loop car (4) (Fig. 5)
moves to the right and the strip (1) goes to the plating device (6).
2) continues to be supplied. Next, the tip (16) of the next processing coil (15), which is the trailing lip, is sent out,
Stop it in the state shown in Figure 8, and tighten the entry side clamp <3.
6) to restrain it by holding it up and down. At this time, the rear end (13) of the strip 12) from the processing coil (11)
And the tip (16) of the strip (12) from the next processing coil (15) has two lower blades (16) as shown in FIG.
25), and in this state, the cylinder (29) drives the upper shaft holder (28) downward, and the lower blade (25) and the upper blade (27) cut the rear end (13). and cut the tip (16) towards the middle of the strip (12). After cutting, the entry side clamp (36) is moved toward the rear end (13) (to the right in FIG. 8) by a cylinder (not shown) while restraining the front end (16), and the rear end (13) is The carriage (22) is stopped with the distal end (1b) slightly overlapped with the carriage drive device (23).
) to the front side in FIGS. 6 and 7, and the lower electrode ring (3o) and the upper electrode ring 31) are moved to the rear end part (1).
3), sandwich the overlapping part of the tip part (16) while pressing it up and down, and weld the lower electrode ring (3) with the welding transformer (33).
By moving the carriage (22) further forward while passing a current between the upper electrode ring (31) and the upper electrode ring (31), the overlapping portion of the rear end (1B) and the tip (16) is crushed. The rear end (13) and the tip (1
6) Connect with.

When the leading end (16) is connected to the rear end (13), the carriage (22) returns to its original position and the exit clamp (3)
7), the restriction of the rear end (13) and the tip (16) by the entry side clamp (36) is released, and the rear end (13) is sent in the direction A, and the rear end (13) and the tip are separated. When the welded portion with (16) reaches the position of the punch (42) of the puncher (3) (described later, FIG. 8), the rear end (13) is stopped again.

Next, the puncher (31) will be explained based on FIG. 8. (41) is a die and is fixed to the base (1). (42) is a punch and the frame (43
) is driven in the vertical direction in FIG. 8 by a cylinder (44) provided in the strip (12
) is configured to punch out a hole by shearing.

Now, when the welded part between the rear end part 13) and the tip part (16), which are seam welded as described above, is fed to the position of the puncher (3) and stopped, the punch (42) is moved into the cylinder. (44), it descends and punches a hole in this weld. After completing the hole shearing process, the next processing coil is 1.
5) The strip (12) is fed out faster than the line speed in the plating equipment N (6) and is attached to the roof according to the differential speed.

The car (4) (Fig. 5) moves to the left and returns to its original state, and the strip (12) from the next processing column (15)
The feed rate of the strip (12
) processing continues.

As above, seam welder), puncher (3), loop car? 4) The plating device (61
The galvanizing process is carried out continuously without stopping the feed of the inner strip (12), and in the subsequent process, the holes made by the puncher (3) are detected by a phototube or the like as required.

Now, in the conventional strip connecting device configured as described above, the strip (
12) Twice when welding the seam between the rear end (13) and the tip (16) of the strip (12) from the next processing coil (15) and when punching a hole in this welded area with the puncher (3). , the strip (12) must be stopped;

The total time required to connect the loop car (12) and drill the hole until the completion of the process was long, and therefore, a large amount of the strip (12) was required to be stored in the loop car (2). Also, loop car (
In addition to 2) an increase in storage capacity, there are other problems such as requiring a large amount of installation space because the seam welder (2) and puncher (3) are installed separately.

Therefore, in order to solve these problems, Figures 9 and 10
The device shown in the figure is proposed. FIG. 9 is a front view of the guillotine shaft, 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). The upper blade (27) cuts the rear end (13) and the tip (16), and at the same time, the punch (42) punches a hole in the rear end (13), as shown in FIG. The puncher (3) was previously installed separately from the seam welder (2), and now it is integrated into the strip (12).
The aim is to reduce downtime and installation space.

[Problem to be solved by the invention]

However, even with the conventional strip connecting device shown in Fig. 9, although the installation space can be reduced, it is necessary to make holes at the same time as cutting the rear end (1B) and tip end (16). Therefore, if there was a request not to drill holes due to post-processing reasons, we could not accommodate this request. Also, strip (12) in the middle of the coil.
If there is a part where the plate thickness has changed, this part does not require connection, but you may want to drill a hole separately to clearly indicate that the plate thickness has been changed, but this is not possible. There was a problem.

This invention was made in order to solve the above-mentioned problems, and it provides a strip in which a part of the strip can be sheared at any time, whether or not when the strip is connected, and the space required can be reduced. The purpose is to obtain a connecting device.

[Means to solve the problem]

The strip connecting device according to the present invention includes a movable member provided with a movable blade for cutting the rear end of a leading strip and the leading end of a trailing strip, and a punch movably provided therein.

[Effect]

In the present invention, the punch is stopped at a predetermined position of the movable member and the movable member is moved so that the movable blade cuts the leading or trailing strip and also cuts a part of the leading or trailing strip. By shearing the strip and stopping it at a predetermined position 1 different from the above-mentioned predetermined position, it is possible to prevent the leading or trailing strip from being sheared even if it moves together with the moving member. Further, by further moving the punch, a portion of the leading or trailing strip can be sheared 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 portion of the leading or trailing strip can be sheared or not sheared as desired.

〔Example〕

1 to 4 show an embodiment of the present invention, FIG. 1 is a front view of the strip connecting device with the punch (42) in an intermediate position, FIG. 2 is a partially enlarged side view, FIG. 3 is a front view when the punch is at the upper limit position, and FIG. 4 is a front view showing the state when holes are formed in the strip by the punch. In these figures, (51) is a guide cylinder, which is provided on the guillotine shaft (24) and is connected to the rod (
52), the punch (42) is supported so as to be movable in the vertical direction.

(53) is a vertical cylinder, which drives the rod (52) in the vertical direction. The rest of the configuration is similar to the conventional device shown in FIGS. 9 and 10, so corresponding parts are given the same reference numerals and explanations will be omitted.

Note that the punch (42) supported by the rod (52) vertically guided by the guide cylinder (51) fixed to the upper shaft holder (28) in this embodiment is movable by the movable member in this invention. This is an example of a punch provided in the.

Next, the operation will be explained. Rear end (13), distal end (
When punching holes in the strip (12) at the same time as cutting the strip (16), the punch (42) should be moved to its upper limit position (see Fig. 2) as shown by the solid line in Figs. 1 and 2. It is stopped at a position slightly below the punch (42) shown by the dotted line. In this state, the punch (42
) and the upper blade (27) are in the same positional relationship as the punch (42) and the upper blade (27) in the conventional device shown in FIG.
28), the upper blade (27) cuts the rear end (13) and the tip (16), and at the same time the punch (42) cuts the rear end (13) (Fig. 2). The holes are processed.

If you do not want to drill holes when cutting the rear end (13) and tip (16), move the punch (42) to its upper limit position as shown by the dotted line in Fig. 2 and Fig. 3. By moving the punch (42), even when cutting the rear end (13) and the tip (16) with the upper blade (27), the punch (42) will move the rear end (16).
13), so no hole is drilled in the rear end (13).

Also, since the plate thickness of the coiled strip (12) is changed midway through, there is no need for seam welding, but if you want to machine an identification hole in this part, for example,
As shown in Figure 4, the cylinder (29) lowers the upper shaft holder (28) slightly lower than the state shown in Figure 1 (in this state, the upper blade (27) is still attached to the strip (12)
), and by moving the punch (42) downward using the upper and lower cylinders (53), holes can be formed in the strip (12).

In the above embodiment, when the strip (12) is not cut and it is desired to make a hole in the strip (12), the upper shaft holder (28) tends to be lowered slightly and the punch (42) is moved downward. I moved it to the upper and lower cylinders (5) and drilled holes in the strip (12).
If the stroke (3), that is, the distance over which the punch (42) can move, is made sufficiently large, the strip (12) can be drilled by moving the punch (42) alone.

In addition, the strip connecting device is not limited to one that performs the connection by seam welding as described above, but also a device that performs the connection by laser beam or other means has the same effect, and 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.

〔Effect of the invention〕

As described above, according to the present invention, since the punch is movably provided on the movable member, it is possible to reduce the installation space and provide a strip connecting device with a high degree of freedom in which a part of the strip can be sheared at any time. It will be done.

[Brief explanation of the drawing]

Figures 1 to 4 show an embodiment of the present invention, in which Figure 1 is a front view of the strip connecting device, Figure 2 is a partially enlarged side view of the guillotine machine, and Figure 3 shows the punch in the upper limit position. Figure 4 is a front view showing the machining of the hole punched, Figures 5 to 8 show the conventional plating line, Figure 5 is the line configuration diagram, and Figure 6 is the front view showing the machining process. A perspective view showing a seam welding machine and a puncher section, which are strip connecting devices, FIG. 7 is a perspective view showing a carriage section, FIG. 8 is a side view showing a kilochinsha and a puncher section, and FIGS. 9 and 10 are further illustrations. shows the conventional strip connection device of
FIG. 9 is a front view of the Kirochinsha, and FIG. 10 is a side view. In the figure, (2) is a seam welder, B) is a puncher (
12) is the strip, (13) is the rear end, (15) is the next processing coil, (16) is the tip, (24) is the guillotine shear, (27) is the upper blade, (28) is the upper shear holder, ( 2
1) is a cylinder, (41) is a die, 42) is a punch,
(51) is a guide cylinder, (52) is a rod, and (53) is an upper and lower cylinder. Note that the same reference numerals in each figure indicate the same or corresponding parts. Agent: Masuo Oiwa, Patent Attorney Figure 1: Paronansha Kamiba Kobusha note, Lutalerishikuji] Gunko r Inner cylinder O・Soto'' Upper and lower cylinders: Figure 3, Figure 4, Figure 8, Figure 9, Figure 10

Claims (1)

[Claims] A strip in which the rear end of the preceding strip and the tip of the trailing strip are cut by a linear movable blade provided on a moving member that is reciprocally driven by a reciprocating drive device, and the two ends are welded and connected. In the connecting device, the movable member is provided with a punch movable in the direction of the reciprocating drive,
A strip connecting device characterized in that a part of the leading or trailing strip can be sheared by the punch.