JPH0238288B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a punching and side notching device in a metal strip manufacturing line, and more specifically, to a punching and side notching device used in a welding device for connecting metal strips as a post-process such as a welding process. The present invention relates to a device for side notching.

Conventionally, as this kind of thing, Fig. 1, Fig. 2,
The one shown in Figure 3 was found. This is a case where the pre-process of punching and notching is welding, and a welding device 2 for connecting the metal strip is placed on the running line of the metal strip 1 shown by the chain line, and after this welding device 2, the die 3 is engaged. Punch 4
A cylinder 5, which provides a punching force of , is supported on the punching upper frame 6. 7 is a punching lower frame that supports the die 3. After the punching device constructed as described above, there is a notching device consisting of opposing notch heads 8a and 8b for side notching the welded wire plate side edge, and cylinders 9a and 9b for moving these to the plate side edge. It is arranged. 10 is the base. With this configuration, the metal strips 1 connected by the welding device 2 can be connected from the welding position A to the welding line L1.
The punch 4 is moved in the direction shown by the arrow d to the rear B position, that is, the punching position located at a distance of
Using the die 3, punching b is performed in the vicinity of the weld line a, as shown in FIG. After this punching is completed, the metal strip 1 is moved from the B position to the C position having a distance of L2 and stopped, and then the cylinders 9a and 9b of the notching device are actuated to the plate side end of the welding line a, and the notcher head 8a is moved. and 8b were brought close to the end of the metal strip 1 on the plate side, and side notching was performed to form side notchings Ca and Cb as shown in FIG.

Since the conventional device was constructed as described above, the punching and side notching processes formed near the welding line of the metal strip 1 were performed by moving the metal strip 1 a distance L1 from the welding position A, and then moving the metal strip 1 from the welding position A to position B by stopping the process. Then, it was moved from position B to position C, which is a distance of L2. This two-time movement and stopping operation is difficult to operate, takes a long time, and has the drawback of reducing the operating rate of the entire metal strip manufacturing equipment.

This invention was made in order to eliminate the drawbacks of the conventional apparatus as described above, and it is possible to cut the metal strip in one go after the welding process or the trimming process, which is a pre-process of the punching and side notching process. Punching and notching are performed by moving and stopping operations, that is, punching and side notching are performed within a short time after the previous process, such as the welding process or trimming process, is completed.
The object of the present invention is to provide a punching and side notching device for a metal strip manufacturing line that improves the operating rate of the entire metal strip manufacturing equipment.

An embodiment of the present invention will be described below with reference to FIGS. 5, 6, and 7. In the figure, the metal strip 1, welding device 2, die 3, punch 4, cylinder 5, notch heads 8a, 8b, and cylinders 9a, 9b are the same as those in the prior art, and therefore their explanation will be omitted. Reference numeral 11 denotes a flat punching upper frame that supports the cylinder 5 and punch 4 at position D in the running direction of the metal strip 1 between the opposing notch heads 8a and 8b, and has a cross section 11a between the notch heads 8a and 8b. are doing. Reference numeral 12 denotes a punching lower frame that supports the die 3 at a position between the notch heads 8a and 8b so that the punch 4 can be inserted into the die 3 with an appropriate clearance. Further, 13 is a punching lower frame 12, notch heads 8a, 8b, cylinders 9a, 9b, punching upper frame 11.
It is a base that supports etc.

Next, the operation will be explained. The metal strips 1 connected by the welding device 2 are moved from the welding position A to the welding line a at a distance of L3 from the rear C.
After moving in the direction shown by arrow d to the punching and notching position and stopping,
A punching device consisting of a die 3, a punch 4, a cylinder 5, a punching upper frame 11, a punching lower frame 12, and a base 13 is used to punch near the welding line a, and at the same time, the cylinders 9a and 9b are welded at the same stopping position of the metal strip 1. The notch heads 8a, 8b are brought close to the ends of the part plates.
Activate to perform side notching.

As described above, according to the present invention, the cross section 1 supporting the punch 4 of the punching upper frame 11
1a between the opposing notch heads 8a and 8b,
The supporting part of the die 3 of the punching lower frame 12 is similarly positioned between the opposing notch heads 8a and 8b, and the punching device is placed near the welding line movement stop at point D, which is the same as the side notching position, in the running direction of the metal strip 1. Since the die 3 and punch 4 are configured so that they can be placed at the same time, punching and side notching can be performed in a short time by moving and stopping the metal strip 1 once after the previous process such as welding is completed, and the metal strip can be punched and side notched in a short time. This has the effect of significantly improving the operating rate of strip manufacturing equipment.

In the above embodiments, the pre-process is welding, but it may be a trimming process or any other pre-process, and the same effect can be obtained.

[Brief explanation of drawings]

Fig. 1 is a side view of a conventional device, Fig. 2 is a view taken from the - arrow in Fig. 1, Fig. 3 is a view taken from the - arrow in Fig. 1, and Fig. 4 is a metal strip for explaining the operation. 5 is a side view of one embodiment of the present invention, and FIG. 6 is a partial plan view of the embodiment of the present invention.
7 is a view taken along the - arrow in FIG. 5. 1...Metal strip, 2...Welding equipment, 3...
...Dice, 4...Punch, 5...Cylinder, 8
a, 8b...Notch head, 9a, 9b...Cylinder, 11...Punching upper frame, 11
a...Transverse section, 12...Punching lower frame, 13...Base. In each figure, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Claims] 1 Welding process, trimming process, etc. are pre-processes,
In an apparatus whose post-process is to perform punching and sand notching on predetermined portions of the metal strip that has undergone the pre-process, the metal strips are arranged facing each other across the threading direction of the metal strip, and the spacing between them is adjustable. A punching machine comprising: a side notching device having a pair of notcher heads; a punching upper frame supporting a punch in a transverse section crossing between the pair of notcher heads; and a punching lower frame supporting a die with which the punch engages. A punching and side notching device in a metal strip production line, characterized in that the device is equipped with a device. 2. A punching and side notching device for a metal strip manufacturing line as claimed in claim 1, wherein the punching upper frame, the punching lower frame and the notching head are supported on a single base.