JPH0157967B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is capable of ensuring reliable folding work by preventing each folding roll from floating off, and can also ensure good folding even if the plate thickness of the coated metal material of the coated metal envelope changes. To provide a folding machine capable of further improving the efficiency of folding work by easily removing the folding machine even during folding work.

BACKGROUND ART Recently, there has been active research and development into coated metal enclosures that are constructed watertightly and airtight by seam welding coated metal materials (mainly stainless steel materials, etc.) to the inner and outer surfaces of structures. If the upper end of the joint a to be seam welded is simply cut off as shown in Figure 8, it will look like a vertical knife, which is not only extremely dangerous for construction workers, but also will cause the seam to be welded. Because of the inconvenience of cutting the cord of the welding machine, etc., it was necessary to break off the upper end of the joint part a. Folding machines have already been developed for this purpose, but they may not be able to reliably fold, or may not be able to produce good folds if the thickness of the coated metal material changes, or may cause problems during the folding process. When a problem occurs, the folding machine cannot be easily removed, resulting in a significant drop in folding work efficiency.

Therefore, the present invention provides a swinging body that is swingable and fixed to a fixed body, and a plurality of groups of roll shafts are pivotally supported on each of the fixed body and the swinging body,
A folding roll for folding the upper edge of the vertical thin plate material is fixed to the lower end of each of the roll shafts, and at least one of the folding main roll and the folding sub roll of the pair of folding rolls in each group is fixed to the lower end of each of the roll shafts. A worm wheel is fixed to the upper end of each of the roll shafts, and the worm wheels on the left and right sides are engaged with the worm fixed to a shaft rod that is pivotally supported at the center of the roll shaft. The rod may be driven by an electric motor, or in the above structure, a sliding support plate may be provided at a position slightly below the folding rolls of the plurality of groups to support the fixed body and the swinging body, or the fixed body and the swinging body may be supported. The oscillating body is swingable relative to the main body, and elastically supported so that both fixed bodies and the oscillating body are in close contact with each other, and a plurality of groups of roll shafts are pivotally supported on each of the fixed body and the oscillating body. A folding roll for folding the upper edge of the vertical thin plate material is fixed to the lower end of each of the roll shafts, and at least one of the folding main roll and the folding sub roll of the pair of folding rolls in each group is moved downward. A worm wheel is fixed to the upper end of each of the roll shafts, and the left and right worm foils are engaged with the worm fixed to a shaft pivoted at the center of the swing.
The shaft rod may be driven by an electric motor, or the swinging body may be swingably and fixedly provided relative to the fixed body, and a plurality of groups of roll shafts may be provided on each of the fixed body and the swinging body. A folding roll for folding the upper edge of the vertical thin plate material is fixed to the lower end of each of the roll shafts, and at least one of the folding main roll and the folding sub roll of the pair of folding rolls of each group is fixed downward. The diameter should become thinner as it goes.
The folding rolls of the plurality of groups are made to spring each other in a substantially horizontal direction, and the folding upper roll, which bends the upper edge of the vertical thin plate material to a substantially right angle, is made to spring downward, and the upper end of each of the roll axes is The left and right worm wheels are engaged with the worm, which is fixed to a shaft rod that is pivotally supported at the center of the worm wheel, and the shaft rods are driven by an electric motor. The folding roll can be prevented from floating off and the folding work can be carried out reliably.Furthermore, even if the thickness of the coated metal material of the coated metal outer body changes, good folding can be performed, and the folding machine can be easily operated even during folding work. It can be removed, further improving the folding work efficiency and solving the above-mentioned drawbacks.

The structure will be explained with reference to the drawings.

1 is a fixed body; 2 is a swinging body; the fixed body 1 consists of a fixed bearing body 1a and projections 1b, 1b on the upper side of both ends; It consists of an inverted L-shaped top plate 2b on one side and an upper side. Its fixed body 1 and swinging body 2
This means that the swinging body 2 is pivoted about the axis of the shaft 3, and the swinging body 2 is swingable relative to the fixed body 1. That is, the shaft 3 is pivotally supported by bearings 4, 4 provided at opposite ends of the fixed bearing body 1a and the swing bearing body 2a in the longitudinal direction. The bearing 4 has two mounting parts on the left and right.
It is divided, and the left and right mounting parts are configured to be rotatable around their axis. Reference numeral 5 denotes a fixed clamp, the threaded portion 5a of which is loosely inserted into an arcuate elongated hole 6 drilled above the protrusion 1b, and is inserted into the internal threaded portion provided at the front and rear ends of the inverted L-shaped top plate 2b. The fixed main body 1 and the swing main body 2 are configured to be screwed together, and depending on the tightening state, the fixed main body 1 and the swing main body 2 are either fixed or placed in an open state in which they can swing within the range of the arcuate elongated hole 6. 7 is an open clamp, and a plate cam 7a is attached to its base.
is fixed, and the plate cam 7a is pivotally supported on the upper end of the projection 1b. When the opening clamp 7 is rotated counterclockwise in FIG.
Press the end of the inverted L-shaped top plate 2b downward to release the swinging body 2 from the fixed body 1 (see the dotted line in Figure 2). Also, if you do it like the solid line in Figure 2,
It is brought into an open state in which it can swing within the range of the arcuate elongated hole 6. The fixed bearing body 1a and the swinging bearing body 2
A is provided with a plurality of (four in the embodiment) bearing housings at appropriate intervals in the longitudinal direction. 8a and 8b are fixed bearings and movable bearings, the fixed bearing body 1a and the swinging bearing body 2a.
are stored in each bearing storage section. Specifically, the fixed bearing 8a is fixed to the bearing storage part of the fixed bearing main body 1a, and the movable bearing 8b is fixed to the swing bearing main body 2a.
It is housed in a bearing housing portion of the body so as to be slidable in the horizontal direction (in the left-right direction in FIG. 3). Further, the fixed bearing 8a may be fixed to the bearing storage part of the swing bearing main body 2a, and the movable bearing 8b may be stored in the bearing storage part of the fixed bearing main body 1a so as to be horizontally slidable. The fixed bearings 8a, 8a... and the movable bearing 8
Roll shafts 9, 9... are supported substantially vertically (steeply inclined) on b, 8b.... Specifically, horizontal grooves 10, 10 are formed in the movable bearing 8b, and the horizontal grooves 10, 10 are engaged with the tips of roller keys 11, 11 provided on the side wall of the bearing housing portion of the swing bearing body 2a. The roll shaft 9 is configured to move substantially horizontally while maintaining a substantially vertical state.
The fixed bearings 8a, 8a...movable bearings 8b, 8b...
Each group, that is, a pair of first folding rolls 12 to fourth folding rolls 15 are fixed to the lower ends of the roll shafts 9, 9, which are pivotally supported. The first folding roll 12 has a first folding main roll 12a and a first folding sub roll 1 whose diameter becomes smaller as it goes downward.
2b form a pair, on which a truncated conical first folding upper roll 12c is pivotally supported. The second folding roll 13 also has a second folding main roll 13a and a second folding sub roll 1 whose diameter becomes smaller as it goes downward.
3b form a pair, on which a flat roll-shaped second folding upper roll 13c is pivotally supported. One of the third folding rolls 14 has a third folding main roll 14a whose diameter becomes smaller as it goes downwards, and a third folding main roll 14a whose diameter rapidly becomes smaller as it goes downwards, and a flange on the lower side. A pair of third folding sub rolls 14b formed thereon are configured. 4th fold roll 1
5 is a pair of a fourth folding main roll 15a and a fourth folding sub roll 15b whose diameter becomes smaller toward the bottom. It should be noted that the use of primary and secondary is for explanation purposes only, and the two are parallel concepts. A worm wheel 16 is fixed to the upper end of each of the roll shafts 9. 17 is a worm, and the shaft rod 4
A plurality of (four in the embodiment) are fixed in the middle. The worm foils 16, 16 of a pair of folding rolls of each group are configured to mesh with each other on the left and right sides of the worm 17 (in FIGS. 2, 3, etc.). An electric motor 18 is fixed to the upper surface of the inverted L-shaped top plate 1b.The electric motor 18 is driven to rotate a spur gear 21 fixed to the end of the shaft rod 3 through a spur gear 19 and an idle gear 20. It is configured to drive a plurality of groups of first to fourth folding rolls 12 to 15 by rotation. Reference numeral 22 denotes a bearing individual pressure pin, the tip of which comes into contact with the side surface of the movable bearing 8b in the swing bearing main body 2a, and pressurizes this with a pressure spring 23 (compression coil spring). 2
The pressure bolt 24 that presses the three ends of the swing bearing body 2
It is provided on the side wall of a so that the pressure can be adjusted. A bearing stopper 25 is fixed to the movable bearings 8b, 8b..., and the bearing stopper 25 is fixed to the fixed bearing 8b.
It is configured to abut against the side portions of a, 8a, .

In the above-described configuration, the movable bearing 8b may be fixed in the swing bearing body 2a in the same manner as the fixed bearing 8a, and the bearing individual pressure pin 22 may not be provided. In this case, a bearing-wide pressure pin 26 is provided. That is, one end of the swing bearing main body 2a of the swing main body 2 is fixed to the front and rear surfaces of the swing bearing main body 2a, and one fixed main body 1
The other end of the entire bearing pressing pin 26 is loosely inserted into the through holes of the bearing section 27 provided on the front and rear surfaces of the fixed bearing main body 1a, and the tip of the entire bearing pressing pin 26 and the bearing section 27 are connected. A pressure spring 28 (compression coil spring) is interposed between the fixed body 1 and the swinging body 2.
They are elastically supported so that they are in close contact with each other at all times (see FIGS. 1 and 2). In the embodiment, the entire bearing pressure pin 26 is configured as a bolt shaft, and a nut is screwed onto the tip thereof, so that the pressure of the pressure spring 28 can be adjusted.

Further, the first folded upper roll 12c is pivotally supported by a support plate 29 provided in a recess below the side of the movable bearing 8b where it is located, and the second folded upper roll 13c is also supported by a second driven member where it is located. Bearing 8b
The support plate 29 is pivotally supported by a support plate 29 provided in a recessed portion below the side portion. One end of each support plate 29 has a movable bearing 8
It is pivotally supported in the concave portion b, and the other end is pressed by a spring 30 (compression coil spring), so that it is always springing downward. Reference numerals 31 and 31 denote sliding support plates, which are shaped like skis, and are provided symmetrically on the left and right sides (in FIGS. 2 and 3), and are slightly attached to the first folding main roll 12 to the fourth folding main roll 15. It is configured to be located at the bottom. Specifically, the lower ends of the vertical rods 32, 32 are fixed to the front side (the front side in FIG. 1) and the rear side of the sliding support plate 31, and the upper ends are fixed to the fixed bearing body 1a and the swing bearing body 2a. L
They are fixed via shaped brackets 33, 33. In addition, although the four-stage embodiment of the plural groups of folding rolls from the first folding roll 12 to the fourth folding roll 15 has been described, the number may be smaller or larger depending on the thickness of the plate to be folded, the material, etc. Sometimes I do.

Note that both the individual bearing pressing pin 22 and the entire bearing pressing pin 26 may be provided. In this case, it is preferable that the elastic force of the pressure spring 23 be smaller than the elastic force of the pressure spring 28. In addition to the release clamp 7, appropriate known technical means may be used as the release means.

Next, the effects will be explained.

First, we will describe the operation of a folding machine that is provided with the entire bearing pressure pin 26 but without the individual bearing pressure pins 22.The folding machine is placed on a coated metal outer envelope, and the first folding roll 12 is placed on the folding machine. The fixed clamp 5 is opened while the upper end of the seam-welded joint is held between the first folding main roll 12a and the first folding sub-roll 12b, and the fixed body 1 and the swinging body 2 are held in a swingable state. , the electric motor 18 is driven to start the folding operation. As shown in FIG. 6(i), the first fold main roll 12a of the first fold roll 12
While holding the lower side of the joint part a with the folding sub rolls 12b, the upper end edge of the joint part is bent at an angle of about 45 degrees with the first folding upper roll 12c. Then, as shown in (ii) of FIG. 6, the second fold main roll 13a of the second fold roll 13, the second fold sub roll 13b
While holding the lower side of the joint part a, press the upper edge of the joint part a with the second folding upper roll 13c.
Bend at a 90° angle. Next, as shown in (iii) of FIG. 6, the upper end edge of the joint part a is further bent downward by the third folding main roll 14a and the third folding sub roll 14b of the third folding roll 14. Bend it approximately 135°. Then, as shown in (iv) of FIG. 6, the fourth fold main roll 15 of the fourth fold roll 15 is
The upper end edge of the joint part a is further bent downward to about 180 degrees by the fourth folding sub roll 15b, and the folding is completed by bringing it into close contact with the lower side of the joint part a.

In addition, to describe the operation of a folding machine that is provided with bearing individual pressure pins 22 and without the entire bearing pressure pin 26, the folding machine is placed on a coated metal envelope, and the plate thickness of the coated metal material is (The first main roll 12a of the first fold roll 12 and the first sub-roll 12b of the first fold roll 12 hold the upper end of the seam-welded joint part.) ) The fixed body 1 and the swinging body 2 are tightened and fixed with the fixed clamp 5, the electric motor 18 is driven, and the folding work is started. The other operations are the same as those described above, but this method is particularly suitable when the thickness of the thin plate material to be broken suddenly increases or decreases during the breaking process.

In this way, in the invention of claim 1, the swinging body 2 is swingably and fixedly provided with respect to the fixed main body 1, and the fixed main body 1 and the swinging main body 2 each have a plurality of groups. A folding roll for folding the upper edge of a vertical thin plate material is fixed to the lower end of each roll shaft 9, 9..., and one of the pair of folding rolls in each group is fixed to the lower end of each roll shaft 9, 9.... At least one of the main folding roll and the sub-folding roll has a diameter that becomes smaller as it goes downwards, and a worm wheel 16 is fixed to the upper end of each of the roll shafts 9, 9, and a worm wheel 16 is attached to the swinging center of the roll. Worm 17 stuck to shaft rod 3
First, by screwing the left and right worm wheels 16, 16 together and driving the shaft rod 3 with an electric motor 18, the diameter becomes smaller as it goes downward. The circumferential speed of the upper side of the rolls is higher than that of the lower side, and when the pair of folding rolls rotates, the thin plate material (joint part a) is lifted upward as the pair of folding rolls rotates. In other words, when considering a vertical thin sheet material (joint part a) as a reference, the folding roll acts as if it bites into the lower part of the thin sheet material (joint part a) while rotating, and the folding roll cuts into the thin sheet material during the folding operation. It does not easily come off from (joint part a) and prevents floating deviation, allowing extremely smooth breaking work.
The folding work efficiency can be significantly improved. In addition, in the present invention, in particular, a drive transmission structure is adopted using the worm 17 and the worm wheel 16, and the swinging body 2 can swing (open) relative to the fixed body 1 at the axis of the worm 17 (the center of the shaft rod 3). By doing so,
The worm 17 and the worm wheel 16 can be easily opened while maintaining the engaged state. Therefore, if any trouble occurs during folding work,
When the swinging body 2 is swung (opened) relative to the fixed body 1 around the shaft 3, the gap between the main folding roll and the sub-roll is widened, and the folding machine is It can be easily removed from a), which in turn can significantly improve the efficiency of the folding operation. In the past, the drive of the folding rolls had to be reversed to travel a certain length (for example, about 2 to 3 meters), which solved the disadvantage of being extremely inefficient. Even if the distance between the main folding roll and the secondary folding roll can be widened in this way, the folding rolls of the plurality of groups can be moved vertically by fixing the movable body 2 to the fixed body 1 during the folding operation. The thin plate material (joint part a) can be held well and the folding work can be performed.

Further, in the invention of claim 2, in addition to the structure of the invention of claim 1, a sliding support plate 31 is provided at a position slightly below the folding rolls of the plurality of groups.
31 to support the fixed main body 1 and the swinging main body 2, the entire load of the folding machine is supported by the sliding support plates 31, 31, and the folding rolls of the plurality of groups are made of thin plate material (the joint part a), and as a result, when the folding roll rotates and advances, a fine arc shape is formed on the flat main plate near the vertical thin plate material (joint part a). It can eliminate wrinkles and smooth the signal of the folding machine. In addition, the sliding support plates 31, 31
With the presence of the folding roll, the folding main roll and the folding sub-roll need only have a roll thickness corresponding to the folding height, which is economical. The other configurations are the same as the configuration of the invention in item 1, and the same effects are achieved.

In addition, in the invention of claim 3, the swinging body 2 is swingable with respect to the fixed main body 1, and elastically so that both the fixed main body 1 and the swinging main body 2 are in substantially close contact with each other. A plurality of groups of roll shafts 9, 9... are supported on the fixed main body 1 and the movable main body 2, respectively, and the upper end edges of the thin plate materials perpendicular to the lower ends of the roll shafts 9, 9... are broken. The rolls are fixed, and at least one of the main folding roll and the secondary folding roll of the pair of folding rolls in each group has a diameter that becomes smaller as it goes downward, and the roll axis 9,
9... Attach the worm foil 16 to the upper end of each,
The left and right worm wheels 16,1
6 are engaged with each other, and the shaft rod 3 is driven by the electric motor 18, so that even if the thickness of the coated metal material of the coated metal envelope changes, each group can be adjusted according to the plate thickness. The distance between the main folding roll and the sub-rolling roll of the pair of folding rolls can be regulated to provide a good response. A major feature of the present invention is that the breaking work can be carried out regardless of the thickness of the coated metal material of the coated metal envelope. Even if the distance between the main folding roll and the secondary folding roll can be widened in this way, the folding rolls of the plurality of groups are elastic so as to bring the movable body 2 into substantially close contact with the fixed body 1 during the folding operation. By supporting the vertical thin plate material (joint part a), the folding operation can be performed while holding the vertical thin plate material (joint part a) well. Furthermore, similar to the invention in item 1, the folding roll does not easily come off from the thin plate material (joint part a) during the folding operation, and it is possible to prevent the folding roll from floating off and deviating from the surface. The folding machine can be easily removed if necessary.

Further, in the invention of claim 4, in addition to the configuration of the invention of claim 1, the plurality of groups of folding rolls are made to repel each other in a substantially horizontal direction,
In addition, by forcing the upper roll, which bends the upper edge of the vertical thin plate material to a nearly right angle, to bounce downward, the thickness of the coated metal material of the coated metal envelope suddenly increases due to the presence of joints, etc. Even when the plate thickness becomes thicker or thinner, the distance between the folding rolls in each group changes according to the change in thickness, allowing extremely good folding work and significantly increasing folding efficiency. can. Furthermore, the other configurations are the same as the configuration of the invention in item 1, and the same effects are achieved.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the present invention, FIG. 2 is a partially sectional schematic front view of the present invention, FIG. 3 is a partially vertical front view of another embodiment of the present invention, and FIG. 4 is a fixed view of the present invention. A perspective view of the bearing, FIG. 5 is a perspective view of the movable bearing, FIG. 6 is a process diagram showing the folding process of the present invention, FIG. 7 is a perspective view of the folding upper roll portion, and FIG. 8 is a coated metal envelope. FIG. 1... Fixed body, 2... Swinging body, 3... Axis rod, 9... Roll shaft, 12... First folding roll, 13... Second folding roll, 14... Third folding roll.
1st fold roll, 15th... 4th fold roll,
16...Worm foil, 17...Worm, 1
8...Electric motor, 31...Sliding support plate.

Claims (1)

[Scope of Claims] 1. A swinging body is swingably and fixedly provided with respect to a fixed body, and a plurality of groups of roll shafts are pivotally supported on each of the fixed body and the swinging body, and each of the roll shafts is A folding roll for folding the upper edge of the vertical thin plate material is fixed to the lower end, and at least one of the folding main roll and the folding sub roll of the pair of folding rolls in each group is made smaller in diameter as it goes downward. A worm wheel is fixed to the upper end of each of the roll shafts, and the left and right worm wheels are engaged with the worm fixed to a shaft rod supported at the center of the swing,
This folding machine is characterized in that its shaft is driven by an electric motor. 2. A swinging body is swingably and fixedly provided with respect to a fixed body, a plurality of roll shafts are pivotally supported on each of the fixed body and the swinging main body, and a vertical shaft is provided at the lower end of each roll shaft. A folding roll for folding the upper edge of the thin sheet material is fixed, and at least one of the folding main roll and the folding sub roll of the pair of folding rolls in each group is made to have a diameter that becomes smaller as it goes downward; Worm foils are fixed to the upper ends of each of the shafts, and the left and right worm foils are engaged with the worms fixed to the shaft rods that are pivotally supported at the center of the swing.
The shaft is driven by an electric motor,
This folding machine is characterized in that a sliding support plate is provided at a position slightly below the folding rolls of the plurality of groups to support the fixed body and the swinging body. 3. The swinging body is swingable with respect to the fixed body, and elastically supported so that both the fixed body and the swinging body come into close contact with each other, and each of the fixed body and the swinging main body is provided with a plurality of groups of roll shafts. A folding roll for folding the upper edge of the vertical thin plate material is fixed to the lower end of each of the roll shafts, and at least one of the folding main roll and the folding sub roll of the pair of folding rolls in each group is fixed to the lower end of each roll shaft. Worm foils are fixed to the upper ends of each of the roll shafts, and the worm foils on the left and right sides are attached to the worms fixed to the shaft rods that are pivotally supported at the center of the swing. mesh,
This folding machine is characterized in that its shaft is driven by an electric motor. 4. A rocking body is swingably and fixedly provided with respect to a fixed body, a plurality of roll shafts are pivotally supported on each of the fixed body and the rocking body, and a vertical shaft is provided at the lower end of each of the roll shafts. A folding roll for folding the upper edge of the thin sheet material is fixed, and at least one of the folding main roll and the folding sub roll of the pair of folding rolls in each group is made to have a diameter that becomes smaller as it goes downward; A pair of folding rolls in the group are made to spring against each other in a substantially horizontal direction, and the folding upper roll, which bends the upper end edge of the vertical thin plate material to a substantially right angle, is made to spring downward, and the upper end of each of the roll axes is bent. A worm wheel is fixed to the worm wheel, and the worm wheels on the left and right sides are engaged with the worm fixed to a shaft rod that is pivotally supported at the center of the swing, and the shaft rods are driven by an electric motor. A folding machine.