JPH02165828A - Lock seaming machine - Google Patents

Abstract

PURPOSE:To obviate the generation of a clearance between the upper seam part and the lower seam part and to improve watertightness by driving continu ously an auxiliary roll attached before and behind a lock seaming roll, bringing an edge part of the upper seam part to position control and lock-seaming by the auxiliary roll. CONSTITUTION:A lock-seaming roll 4 and an auxiliary roll 6 are allowed to abut on the upper seam part 20, and guide use wheels 9, 9' are placed along a shoulder part of an outside surrounding body 29. A main receiving roll 5 and an auxiliary receiving roll 7 are fitted externally to an arc-like part of the upper driving part 20. When each roll is driven, a lock-seaming machine 1 brings an edge part 20a of the upper seam part 20 to position control by the auxiliary roll 6, while advancing on the outside surrounding body 19, and feeds it to the lock-seaming roll 4 in the rear. Even if the edge part 20a becomes 20a' deformed remarkably in the vertical direction, the auxiliary roll 6 controls it to a position being suitable for lock-seaming and shapes it. The lock-seaming roll 4 and the main receiving roll 5 bring the upper seam par 20 and the lower seam part 21 to lock-seaming watertightly.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a tightening machine for tightening connecting parts of outer enclosures such as roof panels and external wall panels, and more particularly, to This invention relates to a roll structure for tightening, which aims to improve safety and reliability.

(Prior Art) Generally, as shown in FIG. 6, this type of tightening machine has a listening roll 22 pivotally supported at the center of the lower side of a fixed outer casing, and a f. A tightening roll 23 is pivotally supported at the center of the lower side of the small swinging outer cylinder, and the listening roll and the tightening roll are paired, and guide wheels are provided at the front and rear of the fixed outer casing. It is equipped with a motor that drives the tightening roll 23 and the listening roll 22 via a gear train, and a pressing means for fixing the swinging outer casing, and the tightening roll 2
3 and the listening roll 22 sandwich the edge part of one outer envelope, and the pressing means pushes the tightening roll 23 onto the listening roll 22.
There is known a device in which the lock portion is pressed against the side and rotated by the motor to tighten the lock portion.

(Problem to be Solved by the Invention) By the way, in the above-mentioned conventional tightening machine, the tightening roll 23
The outer body 19 is formed by a pair of tightening rolls in which a cylindrical part 25 is formed with a bulging strip 24 at the upper end, and a listening roll 22 has an arcuate groove 27 formed below a large flange part 26. Therefore, when the upper leg tightening part 20 of the outer body 19 is tightened by the large crocodile part 26 and the bulging strip 24, there is a drawback that watertightness with the lower leg part 21 cannot be obtained. Ta. That is, the arcuate portion 28
It is difficult to form a bend so that the arcuate curve of the lower part 21 matches the arcuate curve of the upper part 20 which has been tightened so as to be watertight, and the generation of gaps in the arc part 28 is avoided. It was impossible.

The object of the present invention has been made in view of the above-mentioned drawbacks.
To provide a tightening machine that can securely tighten the upper and lower parts of an enclosure and provide watertightness.

(Means for Solving the Problems) Means for solving the above-mentioned problems and achieving the purpose of the tightening machine according to the present invention include providing a swingable outer casing on a fixed outer casing,
A locking roll is pivotally supported at the center of the lower side of the fixed outer casing, and auxiliary rolls are each pivotally supported at the front and rear positions so as to sandwich the tightening roll, and a main supporting roll is supported at the center of the lower side of the swinging outer casing. A gear train is driven by a motor so that the tightening roll and the main support roll form a pair and interlock with each other. The two auxiliary rolls and the two auxiliary receiving rolls are provided as a pair, and the tightening roll has a small flange portion and an arcuate groove formed therebelow, and a bulging strip is provided at the upper end. The main support roll forms an arcuate groove below the small flange, and both of the auxiliary rolls form a position regulating groove for regulating the position of the edge of the upper part. The auxiliary support roll consists of an arcuate groove formed below the small flange.

(Function) As described above, when the tightening machine according to the present invention performs tightening work on the upper and lower sections of the outer enclosure, the small flanges and arcuate grooves of the tightening roll and the main support roll can be tightened. The small flange part and the arcuate groove below it sandwich the upper part from both sides and forcefully press it along the curved shape of the lower part, so that the upper part can be made watertight. It will be tightened in the lower leg. Furthermore, the pair of auxiliary rollers and auxiliary receiving rollers regulate the position of the edge of the upper bevel, so the upper bevel is smoothly sent to the tightening roll and the main receiving roll, and the tightening work is ensured. It began to be carried out.

(Example) An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a perspective view of a tightening machine 1 of the present invention. FIG. 2 is a bottom view of the tightening machine 1. FIG. 3 is a view taken along the line II in FIG. 1. In this tightening machine 1, 2 is a fixed outer casing, and 3 is a swinging outer casing that is swingably provided on the fixed outer casing 2 via a support rod 3a. Reference numeral 4 denotes a locking roll that is pivotally supported by the fixed outer casing 1, and 5 is a main receiving roll that is pivotally supported by the swinging outer casing 3. Reference numerals 6 and 6 indicate auxiliary rollers that are pivotally supported by the fixed external member 1, and are provided before and after the tightening roll 4. 7,7
are auxiliary support rolls that are pivotally supported by the swinging outer casing 3, and are provided before and after the main support roll 5. Here, the tightening roll 4 and the main support roll 5, and the auxiliary roll 6.6 and the auxiliary support roll 7.7 are arranged in pairs, respectively.

A cantilever bracket 8 extends from the fixed outer casing 2 in the front-rear direction.
．． 8 is formed, furthermore, the cantilever brackets 8, 8
There are front guide wheels 9, 9 and rear guide wheels 9', 9'.
is rotatably supported. This guide wheel 9,9
' is a flange 9a on the outer edge along the shoulder of the outer enclosure to be tightened.

It is also 8 which is integrally equipped with 9a'. Reference numeral 10 denotes a motor attached to the fixed outer casing 2, and the rotation of the motor 10 causes a gear 12 connected to the tightening roll 4 by a shaft 11 through a gear train, and a speed ratio of 1 to the gear 12. :1, the gear 12' connected to the main support roll 5 by the shaft 11' is interlocked. 13, 14, and 15 are switches for normal rotation, stop, and reverse rotation for the motor 10. 16 is an arm attached to the fixed outer casing 2, and 17 is a swinging arm that is swingably supported by a bracket 17a extending from the fixed outer casing 2. Reference numeral 17b designates a rotatable pressure roller provided at the end of the swing arm 17 for pressing the swing outer casing 3.

Reference numeral 18 denotes a pressing roller that presses the horizontal surface of the clamping portion.

Next, the roll shapes of the tightening roll 4 and the main receiving roll 5 will be explained with reference to FIG. 4. As shown in FIG. 4, the tightening roll 4 has a small flange portion 4a and an arcuate groove 4 thereunder.
b, and a cylindrical portion 4d having a bulging strip 4c at its upper end. The main receiving roll 5 has a small flange portion 5a.
An arcuate groove 5b is formed below the groove.

Next, the auxiliary roll 6.6 and the auxiliary support roll 7.7 arranged in pair therewith will be explained with reference to FIG. 5. The auxiliary roll 6 is integrally provided with a flange 6a on its lower edge, and has a tapered conical portion 6b forming a position regulating groove for regulating the position of the edge 20a of the upper ridge portion 20 of the outer envelope 19. The auxiliary support roll 7 paired with this is formed by forming a small flange portion 7a and an arcuate groove 7b below the small flange portion 7a.

A description will be given of how the tightening machine 1 according to the present invention configured as described above is sandwiched between the upper and lower sections 20 and 21 of the outer body 19 to be tightened, and the tightening operation is performed.

In this tightening operation, as shown in FIGS. 3 to 5, the tightening machine 1 is mounted on the upper part of the outer enclosure 19 to be tightened.

At this time, the portions where the tightening device 1 is sandwiched between the single enclosure are tightened in advance using a manual tightening tool (not shown). Then, by using the arm 16, the tightening roll 4 and the auxiliary roll 6.6 of the fixed outer casing 2 are brought into contact with the upper part 20, and the guide wheels 9, 9.9', 9' are moved around the outer casing 19. Place it along the shoulder. Next, the swinging arm 17 is rotated about a shaft 17c supported by the bracket 17a, and the swinging outer casing 3 is fixed to the fixed outer casing 2 by the pressing roller 17b. At the same time, the main receiving roll 5 and the auxiliary receiving roll 7.7 are fitted onto the arcuate portion of the upper rib portion 20.

After clamping the tightening machine 1 on the upper part of the outer enclosure 19 in this way, press the forward rotation switch 13 to apply power to the motor 1° to rotate the tightening roll 4 and the main receiving roll 5 interlocked therewith. let

As a result, the tightening machine 1 has guide wheels 9°9.9',
While moving forward on the outer envelope 19 while being guided by the upper rib 9', the position of the edge 2a of the upper rib 2o is regulated by the auxiliary roll 6 and sent to the rear tightening roll 4. The tightening work is performed using the tightening roll 4 and the main receiving roll 5.

The auxiliary roll 6 is capable of tightening the upper part even when the edge 20a of the upper part has been significantly deformed in the vertical direction due to variations in bending during forming, as shown by the broken line in FIG. This is to regulate and shape it to an appropriate position. The upper ridge part 2o and the lower ridge part 21 are pressed by the pressing roller 18 and are watertightly tightened by the small flange part 4a and the arcuate groove 4b of the tightening roll 4 and the small flange part of the main receiving roll 5. Ru.

Although it has been used in this manner, it can of course also be used by pressing the reverse rotation switch 15 to reverse the motor 10 and move it backward.

Although the tightening machine according to the present invention has been constructed as described above, it goes without saying that the constituent parts such as the tightening roll and the auxiliary roll can be modified in various ways without changing the gist of the invention.

(Effects of the Invention) As explained in detail above, the locking machine according to the present invention is configured, so that the following effects can be obtained.

That is, (1) Since the small flange and the arcuate groove are formed in the shank roll, the watertightness with the lower shank when the upper shank is tightened is higher than before.

This eliminates the occurrence of a gap between the upper and lower ribs, which could not be avoided simply by pressing the upper ribs with the large crocodile portion of the conventional listening roll.

■ Equipped with an auxiliary roll in front of the fastening roll in the direction of travel,
Since the auxiliary roll is formed with a position regulating groove for regulating the position of the edge of the upper ridge, even if the edge of the upper ridge is significantly shifted from the designed position due to variations during molding, the auxiliary roll will Once properly positioned, the edge of the upper bar is fed into the subsequent tightening roll, allowing smooth tightening work. This allows the tightening work to be completed in one go, improving work efficiency.

In this way, it has become possible to provide a tightening machine with high practical value.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the tightening machine of the present invention, Fig. 2 is a bottom view thereof, Fig. 3 is a view taken along the line I-I in Fig. 1, and Fig. 4 is a partially enlarged view. 5 is a partially enlarged sectional view, and FIG. 6 is a partially enlarged sectional view of a conventional tightening machine. Special 1...shaft, 12...gear, 3.14.15...switch, 16...arm, 7
... Swinging arm, 17a... Swinging arm, 7a...
- Pressing roller, 18...pressing roller. Applicant: Mitsumi Metal Industry Co., Ltd.

Claims (1)

[Claims] A swinging outer casing is provided on the fixed outer casing so as to be able to swing freely, and a tightening roll is pivotally supported at the center of the lower side of the fixed outer casing, and auxiliary rolls are respectively pivotally supported at front and rear positions so as to sandwich the tightening roll. ,
A main support roll is pivotally supported at the center of the lower side of the swinging outer casing, and auxiliary support rolls are respectively pivotally supported at front and rear positions so as to sandwich the main support roll, and the tightening roll and the main support roll are paired. The two auxiliary rolls and the two auxiliary supporting rolls are provided as a pair, and the tightening roll is connected to the small flange and the lower part thereof. A cylindrical part having an arcuate groove formed therein and a bulging strip provided at the upper end is arranged in series, the main receiving roll has an arcuate groove formed below the small flange part, and both of the auxiliary rolls have an arcuate groove formed at the edge of the upper part. A tightening machine characterized in that a position regulating groove is formed for regulating the position of the auxiliary support roll, and an arcuate groove is formed below a small flange portion of the auxiliary support roll.