JPH065029Y2 - Welding equipment for strip materials - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a welding device for a strip-shaped material, and more specifically, a rear end portion of a preceding strip-shaped material and a leading end portion of a succeeding strip-shaped material are butted and welded to each other. The present invention relates to a welding device for band-shaped materials.

[Prior Art] Conventionally, as a welding device for a strip-shaped material, a transport mechanism that transports the strip-shaped material, a first clamp mechanism that clamps a trailing end portion of the preceding strip-shaped material, and a leading end portion of the subsequent strip-shaped material. A second clamp mechanism, a moving mechanism that moves at least one of the clamp mechanisms in the longitudinal direction of the strip-shaped material to bring the rear end of the preceding strip-shaped material into contact with the leading end of the succeeding strip-shaped material, There is known one provided with a welding means for welding a rear end portion of a preceding strip-shaped material and a leading end portion of a succeeding strip-shaped material which are moved in the width direction of the material and abut each other (Actual Publication No. 61-). 16926, Jitsuko Sho 61-38773).

[Problems to be solved by the invention] However, in the conventional moving mechanism, since the support block provided with the clamp mechanism is moved forward and backward along the guide groove, the support block is moved by the clearance between the support block and the guide groove. It is difficult to position it at a predetermined butting position with high accuracy, and rattling easily occurs between the support block and the guide groove due to long-term use.Therefore, the trailing end of the leading strip and the leading edge of the trailing strip However, there is a drawback in that it is not possible to match the parts with high precision.

[Means for Solving the Problems] In view of such circumstances, the present invention provides, in the above-described welding apparatus for band-shaped material, a pair of rocking arms provided at the front and rear in the width direction of the band-shaped material, and one end of the rocking arms. And a supporting block at the other end, and a driving means for reciprocally swinging the swinging arm is interlocked with the swinging arm to move the moving mechanism from the driving means and the swinging arm. In addition, the clamp mechanism is provided on the support block of the moving mechanism.

[Operation] According to the above configuration, the band-shaped material can be clamped by the clamp mechanism provided on the support block, and the support block is rocked by the pair of rocking arms provided at the front and rear in the width direction of the band-shaped material. As a result, the trailing end portion of the preceding strip-shaped material and the leading end portion of the succeeding strip-shaped material come into contact with each other. As described above, when the support block is pivotally moved to move back and forth, the support block can be positioned at a predetermined position with higher accuracy than when the support block is moved back and forth on a straight line. Since it is easy to maintain the period, the trailing end of the leading strip and the leading end of the trailing strip can be reliably abutted for a long period of time with high accuracy.

"Embodiment" The present invention will be described below with reference to the illustrated embodiment.
In FIG. 2, the belt-shaped material welding apparatus is provided with welding means 2 for welding the trailing end portion of the preceding belt-shaped material 1a and the leading end portion of the succeeding belt-shaped material 1b. In the illustrated embodiment, the welding means 2 is composed of a laser welding device, and the focus head 3 of the welding means 2 is arranged in the width direction (X) of the strip-shaped materials 1a and 1b.
Direction), longitudinal direction (Y direction) and vertical direction (Z direction)
By moving the leading end of the preceding strip-shaped material 1a and the leading end of the succeeding strip-shaped material 1b by laser, the both ends can be welded.

The preceding strip-shaped material 1a is slidably conveyed on the mounting table 6 of the frame 5 by the front conveying mechanism 4 including a pair of upper and lower pinch rollers 4a and 4b, and the succeeding strip-shaped material 1b is conveyed from the pair of upper and lower pinch rollers 7a and 7b. The rear transport mechanism 7 is configured to slide and transport on the mounting table 8 of the frame 5. A pair of upper and lower pinch rollers 4a, 4b and 7
The a and 7b can be moved up and down respectively to clamp or unclamp the strip-shaped materials 1a and 1b.

The frame 5 is provided with a first clamp mechanism 11 that clamps the rear end portion of the preceding band-shaped material 1a below the focus head 3. The first clamp mechanism 11 includes a support plate 12 that is fixed to the frame 5 and supports the upper surface of the strip-shaped material 1a, and a swing plate that is swingably supported by the frame 5 below the strip-shaped material 1a via a shaft 13. The moving plate 14 is provided, and the rocking plate 14 is rocked by the cylinder 15 provided between the rocking plate 14 and the frame 5, whereby the band-shaped material 1a is clamped by the rocking plate 14 and the support plate 12. I am able to do so.

Further, a second clamp mechanism 18 is provided adjacent to the first clamp mechanism 11 to clamp the leading end of the succeeding strip-shaped material 1b, and the second clamp mechanism 18 is moved by the moving mechanism 19 in the longitudinal direction of the strip-shaped material. The front end of the clamped subsequent strip-shaped material 1b can be brought into contact with the rear end of the preceding strip-shaped material 1a clamped by the first clamp mechanism 11.

The moving mechanism 19 has bases on both sides of the frame 5 for the shafts 20a and 20a.
Swing arms 21a, 2 of the same length that are respectively supported by b
The parallel crank mechanism is provided by arranging the swing arms 21a and 21b in parallel and connecting the support block 23 to the tip ends of the swing arms 21a and 21b via shafts 22a and 22b.
A cylinder 24 is provided between the support block 23 and the frame 5, and the cylinder 24 supports the support block 23.
Can be reciprocally rocked between a position close to the first clamp mechanism 11 and a position separated from the first clamp mechanism 11.

A second clamp mechanism 18 for clamping the leading end portion of the succeeding strip-shaped material 1b is provided on the support block 23. The second clamp mechanism 18 is integrally provided on the support block 23 to secure the upper surface of the strip-shaped material 1b. Support plate 27 to support and strip material 1b
A rocking plate 29 that is rockably supported by the support block 23 via the shaft 22a described above, and a cylinder provided between the rocking plate 29 and the support block 23. By swinging by means of 30, the strip-shaped material 1b can be clamped by the swing plate 29 and the support plate 27.

In the above-described structure, the preceding belt-shaped material 1a is conveyed by the front conveying mechanism 4, and when the rear end of the preceding belt-shaped material 1a is detected by a detector such as a photoelectric tube (not shown), the front conveying mechanism 4 conveys the belt-shaped material 1a. Is stopped, and the first clamp mechanism 11 clamps the strip-shaped material 1a with a predetermined size left behind. Then, in this state, the focus head 3 is moved in the width direction (X direction) while irradiating the band-shaped material 1a with laser, and cuts the rear end portion of the band-shaped material 1a.

When the rear end of the strip-shaped material 1a preceded by the focus head 3 is cut, the succeeding strip-shaped material is moved by the rear transport mechanism 7.
1b is conveyed, and when the tip portion thereof is detected by a detector (not shown), the conveyance of the band-shaped material 1b is stopped. On this occasion,
The second clamp mechanism 18 is located at a position separated from the first clamp mechanism 11, and the leading end of the succeeding strip-shaped material 1b is inserted between the support plate 27 and the swing plate 29 of the second clamp mechanism 18. When stopped, the rocking plate 29 is rocked by the cylinder 30 to clamp the leading end of the band-shaped material 1b between the support plate 27 and the rocking plate 29.

When the second clamp mechanism 18 clamps the leading end of the strip-shaped material 1b, the focus head 3 moves to the second clamp mechanism.
It is moved in the longitudinal direction (Y direction) of the strip-shaped material toward 18.
Further, the focus head 3 is moved in the width direction (X direction) while irradiating the band-shaped material 1b with a laser, and the band-shaped material 1b is moved.
Cut the tip of 1b.

When the ends of the strip-shaped materials 1a and 1b are cut in parallel in this way, the second clamp mechanism 18 is moved toward the first clamp mechanism 11 by the cylinder 24 of the moving mechanism 19, and the second clamp mechanism 18 is moved. The leading end of the succeeding strip-shaped material 1b clamped by is abutted against the rear end of the preceding strip-shaped material 1a clamped by the first clamp mechanism 11.

At this time, since the second clamp mechanism 18 is advanced by the moving mechanism 19 which constitutes the parallel crank mechanism, the cutting surface at the tip of the succeeding strip-shaped material 1b is moved while maintaining the vertical state, and the preceding strip-shaped material 1b is moved. Accurately match the cut surface of 1a.

Further, the focus head 3 is moved in the longitudinal direction (Y direction) of the strip-shaped material and returned to the original position, and then in the width direction (X direction) while irradiating the abutting portion of the strip-shaped materials 1a and 1b with laser. It is moved to weld its butt.

When the welding of the abutting portions is completed in this way, the first
Band-shaped material by the clamp mechanism 11 and the second clamp mechanism 18
The clamps 1a and 1b are released, and the band-shaped material welded by the above-mentioned transfer mechanisms 4 and 7 is transferred to the downstream side. When the rear end of the strip-shaped material comes close to the first clamp mechanism 11, the conveyance of the strip-shaped material is stopped, and thereafter, the above steps are repeated.

Although the second clamp mechanism 18 is swung in the above embodiment, the first clamp mechanism 11 can be swung instead of or together with it.

[Advantages of the Invention] As described above, in the present invention, the band-shaped material can be clamped by the clamp mechanism provided on the support block, and the support block is provided with a pair of rocking members provided in the width direction of the band-shaped material. The moving arm swings the rear end portion of the leading strip material and the leading end portion of the trailing strip material to abut against each other. As described above, when the support block is pivotally moved to move back and forth, the support block can be positioned at a predetermined position with higher accuracy than when the support block is moved back and forth on a straight line. Since it is easy to maintain the period, it is possible to obtain the effect that the trailing end portion of the preceding strip-shaped material and the leading end portion of the succeeding strip-shaped material can be abutted with high accuracy for a long period of time.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG. 2 is a sectional view. 1a, 1b ... Strip material, 2 ... Welding means 4, 7 ... Conveying mechanism, 5 ... Frame 11 ... First clamping mechanism, 18 ... Second clamping mechanism 19 ... Moving mechanism, 21a, 21b ... Swing arm 23 ... Support block , 24 ... Cylinder (drive means)

Claims (1)

[Scope of utility model registration request] 1. A transport mechanism for transporting a strip-shaped material, and a first clamp mechanism for clamping the trailing end of the preceding strip-shaped material,
A second clamp mechanism for clamping the leading end of the subsequent strip-shaped material, a rear end of the preceding strip-shaped material and a leading end of the subsequent strip-shaped material by moving at least one of the clamp mechanisms in the longitudinal direction of the strip-shaped material. A moving mechanism that matches the
Further, in the belt-shaped material welding device, which is moved in the width direction of the belt-shaped material, and is provided with welding means for welding the rear end portion of the preceding belt-shaped material and the leading end portion of the succeeding belt-shaped material that are butted against each other, A pair of swing arms is provided in the front and rear of the width direction of the material, one end of each swing arm is pivotally supported by the frame, and a support block is pivotally supported at the other end. A welding device for strip-shaped material, characterized in that the moving mechanism is constituted by the driving means and a swing arm by interlocking driving means for moving, and the clamp mechanism is provided on the support block of the moving mechanism.