JPH0221333B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is capable of reliably folding the upper end of a vertical rise, and also allows each folding roll to be folded according to the slope of the construction surface, the metal material to be folded, etc. The height can be adjusted to prevent floating deviation, and even if the thickness of the metal material changes, good folding can be achieved.The folding machine can be easily removed during folding work, further improving folding work efficiency. Regarding the folding machine that can be used.

[Prior art and its problems] Recently, there has been active research 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. being developed. The joint part a to be seam welded is the 11th
As shown in the figure, if the upper end is simply cut off, it looks like a vertical knife, which is not only extremely dangerous for construction workers, but also difficult to cut, such as when cutting the cord of a seam welding machine. Due to this inconvenience, 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.

[Means to solve the problem]

Therefore, in order to solve the above problem, the inventor has made extensive research and has developed the invention by providing a plurality of groups of folding rolls for folding the upper edge of a vertical thin plate material in a driveable manner at the bottom of the outer casing. The height positions of the folding rolls of the plurality of groups are set so as to protrude downward from the outer casing in the order of folding, and both sliding support plates are provided symmetrically at positions slightly lower than the folding rolls of the plurality of groups. Alternatively, the first and second folding machines each have a plurality of groups of folding rolls that fold the upper edge of a vertical thin sheet material and are housed in a machine frame in an outer case.
The first and second driven bearings, which are drivably provided at the bottom of the driven bearing and pivotally supports each of the folding rolls, are vertically adjustable with respect to the machine frame, and are symmetrically positioned slightly below the folding rolls of the multiple groups. A folding machine can be constructed in which both sliding support plates are provided on the holder to support the outer casing, or
A plurality of groups of folding rolls for folding the upper edge of a vertical thin plate material are each driveably provided under first and second driven bearings housed in a machine frame in an outer casing, and each of the folding rolls is pivotally supported. The first and second driven bearings are provided so as to be vertically adjustable with respect to the machine frame, the folding rolls of the plurality of groups are provided so as to be resilient to each other in a substantially horizontal direction, and the upper edge of the vertical thin plate material is arranged at substantially right angles. A folding machine is provided in which an upper folding roll that bends up to 100 degrees is provided so as to be able to spring downward, and sliding support plates are symmetrically provided at positions slightly below the folding rolls of the plurality of groups to support the outer casing; , a plurality of groups of folding rolls for folding the upper edge of a vertical thin plate are drivably provided under first and second driven bearings housed in a machine frame in an outer casing, and each of the folding rolls is pivotably supported. The first and second driven bearings are provided so as to be vertically adjustable with respect to the machine frame, and the folding rolls of the plurality of groups are provided so as to be resilient to each other in a substantially horizontal direction, and the folding rolls of each of the plurality of groups of folding rolls are The folding machine is provided with a main roll or a folding sub-roll so as to be openable outward in a substantially horizontal direction, and sliding support plates symmetrically provided at positions slightly below the folding rolls of the plurality of groups to support the outer casing. In addition, the height of each folding roll can be adjusted according to the inclination of the construction surface, the metal material to be broken, etc. to prevent floating deviation, and the thickness of the metal material can be changed. This solves the above-mentioned problems by allowing excellent folding to be performed even when the folding operation is in progress, and by allowing the folding machine to be easily removed even during folding work, thereby further improving the folding work efficiency.

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS. 1 to 10.

1 is a box-shaped outer casing with an open bottom; 2 is a rectangular cylindrical machine frame; the machine frame 2 is fixed between both inner walls of the outer casing 1; A plurality (four in the embodiment) are provided at intervals.

Reference numerals 3a and 3b denote a first driven bearing and a second driven bearing, which are provided approximately symmetrically on the left and right sides of the machine frame 2 in FIG. 3, respectively. And the first driven bearing 3
a is slidable in the vertical direction with respect to the machine frame 2;
The driven bearings 3b are housed in the machine frame 2 so as to be slidable horizontally and vertically. The first driven bearings 3a, 3a, . . . have a roll shaft 4,
4, . . . are vertically supported, and the second driven bearings 3b, 3b, .
Specifically, substantially cubic hollow parts 6, 6 are formed above and below the second driven bearing 3b, and the length is slightly shorter than the length of the hollow parts 6, 6 (in the left-right direction in FIG. 3). Horizontally movable bearings 5, 5 having a substantially cubic shape are configured to be slidable in the horizontal direction within the range of the interval. The roll shafts 4, 4, . . . are attached to the horizontal movable bearings 5, 5.
...is supported vertically. Further, horizontal grooves 5a, 5a are formed in the upper and lower horizontal movable bearings 5, 5 of the second driven bearing 3b, and the horizontal grooves 5a, 5a are set by set screws 7, 7 fixed to the upper and lower sides of the second driven bearing 3b.
The roll shaft 4 is configured to move horizontally while keeping its vertical position. One pair or three first folding rolls 8 to fourth folding rolls 11 are fixed to the lower ends of the roll shafts 4, 4, which are supported by the first driven bearing 3a and the second driven bearing 3b, respectively. . The first folding roll 8 is a flat roll-shaped first folding main roll 8a.
and a flat roll-shaped first folding sub roll 8b form a pair, on which a truncated conical first folding upper roll 8c is pivotally supported. 2nd fried roll 9
Also, a flat-roll-shaped second folding main roll 9a and a flat-roll-shaped second folding sub-roll 9b form a pair, and a flat-roll-shaped second folding upper roll 9c is pivotally supported thereon. The third folding roll includes a third folding main roll 10a having one side shaped like a flat roll, and a third folding sub roll 10b having a diameter that gradually becomes larger as it goes upwards and a flange provided on the lower side. are configured in pairs. 4th special roll 11
, a flat roll-shaped fourth folding main roll 11a and a flat roll-shaped fourth folding sub-roll 11b form a pair. It should be noted that the use of primary and secondary is for explanation purposes only, and the two are parallel concepts.

Further, a groove 12 is formed in the first driven bearing 3a, and a protrusion 1 is formed in the second driven bearing 3b correspondingly.
3 is formed, and a protrusion 13 is formed to slidably fit into the groove 12. A plate 1 is provided on the upper surface of the first driven bearing 3a and the second driven bearing 3b.
4 is provided, and a square frame-shaped gearbox 15 is formed with the plate body 14 as the bottom. A spur gear 16 is fixed to the upper end of each of the roll shafts 4, and the spur gears 16, 16 of each pair of folding rolls are configured to mesh with each other, and the spur gears 16,
16 is configured to be housed within the gearbox 15. A dovetail groove 17 facing in the horizontal direction is formed on the bottom surface of the plate body 14 to approximately half its length (see FIG. 6), and a dovetail groove 17 is formed on the top surface of the second driven bearing 3b. is locked, and the second driven bearing 3b is connected to the plate 14, that is, the gearbox 1.
5 so as to be slidable in the horizontal direction as appropriate. An elongated roll shaft hole is bored in the plate body 14 directly above the second driven bearing 3b. Further, as shown in FIG. 6, the bottom surface of the other half of the plate body 14 is formed in a groove shape as required, and the top surface of the first driven bearing 3a is fixed to the bottom surface. In addition, the first driven bearing 3a, the second driven bearing 3b
Rack gears 19, 19 are fixed to respective sides of the rack gears 19, 19 (see FIGS. 4 and 5).
A shaft rod 21 is supported by the machine frame 2 and is provided with pinion gears 20, 20 that mesh with the shaft 19. The wall of the machine frame 2 at the location of the rack gears 19, 19 is cut away as shown by the dotted line in FIG. Further, dovetail-shaped protrusions 22, 22 facing vertically are formed on both sides of the gearbox 15 (in the left-right direction in FIG. The dovetail grooves 23, 23 facing in the vertical direction formed on the wall (in the left and right directions) are engaged with, and are provided so as to be slidable up and down. Therefore, the first driven bearing 3a, the second driven bearing 3b, and each pair of folding rolls connected to the gearbox 15 are configured to be vertically slidable.

Reference numerals 24 and 24 denote sliding support plates, which are shaped like skis, are provided symmetrically on the left and right sides (left and right sides in FIG. 3), and are located slightly below the first main folding roll 8 to the fourth main folding roll 11. It is configured to be located in The lower ends of the vertical rods 25, 25 are fixed to the front side (left side in FIG. 2) and rear side (right side in FIG. 2) of the sliding support plate 24, and the upper ends of the vertical rods 25, 25 are fixed to the front side (left side in FIG. 2) and the rear side (right side in FIG. Second roll 1
via L-shaped brackets 26, 26 fixed to the outer ends of gearboxes 15, 15 (see FIG. 2, this gearbox 15 is formed wider than the width shown in FIG. 5) corresponding to position 1. It is fixed. In the embodiment, the upper part of the vertical rod 25 is inserted into a long hole drilled in the bottom of the bracket 26, and screwed with nuts from above and below. In some cases, the first driven bearing 3 at the front and back positions of the outer casing 1
a, it may be attached to the second driven bearing 3b via a vertical rod 25 or the like.

27 is a pressure pin, the tip of which contacts the side surface of the second driven bearing 3b inside the machine frame 2, the other end protrudes outside the outer casing 1 of the machine frame 2; A wedge-shaped groove 28 is formed on the side. The wedge-shaped groove 2
A wedge piece 29 is inserted through the pin 8, and its lowering acts to pull out the pressure pin 27 outward. A pressure spring 30 (compression disc spring) is interposed between the flange at the tip of the pressure pin 27 and the inner wall of the machine frame 2, and the pressure pin 27 constantly pushes the second driven bearing 3b inward ( It is configured to be pressed to the left (in FIG. 3). At this time, since the lower end of the wedge piece 29 is inserted,
It exerts a pressurizing effect within the regulated length. In addition, a compression spring 31 (plate spring) is interposed in the groove 12 between the groove 12 and the protrusion 13, so as to constantly press the second driven bearing 3b outward (to the right in FIG. 3). It is configured. The compression spring 31
The elastic force of the compression spring 31 is considerably smaller than that of the pressure spring 30, and after the pressure pin 27 is pulled out, the elastic force of the compression spring 31 causes the second driven bearing 3 to
Press b outward. That is, while the pressure spring 30 is acting, the compression spring 31 is in a completely compressed state, and the groove 12 and the protrusion 13 are completely fitted (Fig. 3, (See Figure 4). The wedge piece 29 is configured to be able to slide up and down on the side surface of the outer casing 1, and its upper end abuts against the plate cam 32.
The wedge piece 29 is formed so as to be lowered by the second rotation. In the embodiment, two wedge pieces 29, 29 are fixed at the upper ends by a horizontal rod 33, and dovetail-shaped protrusions 29a, 29a are formed on both sides of the wedge pieces 29, 29. Dovetail groove 3 fixed to outer casing 1
The two wedge pieces 29, 29 are configured to be able to move up and down by engaging with the wedges 4, 34, and the horizontal rod 33 thereof is always urged upward by a compression spring 35. The horizontal rod 3
A plate cam 32 is in contact with 3. The first folded upper roll 8c is attached to the second driven bearing 3 in which it is present.
The second folded upper roll 9c is also supported pivotally on a support plate 36 provided in a recess below the inner surface of the second driven bearing 3b where it is located. has been done. One end of each support plate 36 is pivotally supported in a recessed portion of the second driven bearing 3b, and the other end is pressed by a spring 37 (compression coil spring) and is always urged downward.

In the above explanation, the roll shafts are vertically adjustable, but each roll shaft 4 is not vertically adjustable.
1st fold roll 8 to 4th fold roll 1
It may be configured such that it protrudes slightly more than the bottom of the machine frame 2 in the order of folding. In this case, the upper end of the vertical rod 25 of the sliding support plate 24 is fixed to the side surface of the fixed machine frame 2 or outer casing 1.

In the figure, 38 is an idle gear, and 39 is an electric motor, which rotates the spur gear 16 via the idle gear 38 by driving the motor. 40 is an arm fixed to one end of the plate cam 32. 41 is a set screw that makes it impossible to raise and lower the gearbox 15, and 42 is a handle fixed to the end of the shaft rod 21. In addition, although the four-stage embodiment of the plural groups of folding rolls from the first folding roll 8 to the fourth folding roll 11 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.

The operation of the present invention will be described. First, to describe a folding machine in which each folding roll cannot be adjusted vertically, the folding machine is placed on a coated metal envelope, and the first folding main roll 8a of the first folding roll 8 is , the electric motor 39 is driven while the upper end of the seam welded joint is held between the first folding sub rolls 8b, and the folding operation is started. As shown in FIG. 9, the lower side of the joint part a is held between the first folding main roll 8a and the first folding sub roll 8b of the first folding roll 8, and the first folding upper roll 8c Bend the upper edge of the joint part to an angle of approximately 40°. As shown in FIG. 9, the second folding main roll 9a and second folding sub roll 9b of the second folding roll 9 sandwich the lower side of the joint part a, and the second folding upper roll 9c Press the upper edge of the joint part a to bend it at an angle of approximately 90°. Next, as shown in FIG. 9, the third fold main roll 10a and the third fold sub roll 10 of the third fold roll 10 are
At b, the upper end edge of the joint part a is further bent downward to approximately 135 degrees. Then, as shown in FIG. 9, the upper end edge of the joint part a is further bent downward at the fourth main folding roll 11a and the fourth folding sub roll 11b of the fourth folding roll 11.
Bend it 180 degrees and complete the folding so that it is in close contact with the lower side of joint part a.

At this time, each roll axis of the folding machine is configured so that its upper end side is slightly inclined forward in the direction of travel (see Fig. 2). Next, let's talk about a folding machine in which each folding roll can be adjusted up and down. Adjust up and down in order so that they protrude downward from the outer casing 1 and the machine frame 2 in order of folding. That is, the first folding roll 8 which pivotally supports the roll shafts 4, 4 of the first folding roll 8
The driven bearing 3a, the second driven bearing 3b, and the gear box 15 are lowered as appropriate by rotating the pinion gear 20 relative to the machine frame 2, and the second folding roll 9 is sequentially lowered.
to the first driven bearing 3 of the fourth folding roll 11
a. The second driven bearing 3b and the gear box 15 are lowered as appropriate by rotating the pinion gear 20 relative to the machine frame 2, thereby changing the height position of the folding rolls in the order of folding (first folding roll 8). The fourth to fourth folding rolls 11) are sequentially adjusted vertically so that they protrude slightly more downward than the outer casing 1 and the machine frame 2 (see Fig. 2). Then, the folding machine is placed on the coated metal envelope, and the upper end of the seam-welded joint a is held between the first folding roll 8a and the first folding subsidiary roll 8b of the first folding roll 8. electric motor 3
9 and start the folding work. The folding process consists of four steps as shown in FIG. If the thickness of the thin plate material to be broken (joint part a) changes or if the thickness of the thin plate material to be broken suddenly increases during the folding operation, the first folding roll 8 to the fourth folding roll 8 to 4
a second driven bearing 3b at the position of the second folding roll 11;
3b, . . . can be moved to the right in FIG. 3 against the pressure spring 30 to accommodate changes in plate thickness. Furthermore, a first upper roll 8c, a second upper roll 9
c can also move upward against the spring 37 to accommodate changes in plate thickness.

〔Effect of the invention〕

First, in the invention recited in claim 1, a plurality of groups of folding rolls for folding the upper edge of the vertical thin plate material (joint part a) are drivably provided at the bottom of the outer casing 1, and the plurality of folding rolls The height positions of the folding rolls are set so that they protrude downward from the outer casing 1 in the order of folding, and both sliding support plates 24, 24 are symmetrically provided at positions slightly lower than the folding rolls of the plurality of groups. By using a folding machine that supports the housing 1, firstly, the folding roll can be prevented from floating off the thin plate material (joint part a) during folding work, and secondly, the work can be done smoothly and inconveniences such as wrinkles can be prevented. This has the effect of eliminating the problem.

To explain these effects in detail, first, a plurality of groups of folding rolls for folding the upper edge of the vertical thin plate material (joint part a) are drivably provided at the bottom of the outer casing 1.
By setting the height positions of the multiple groups of folding rolls so that they sequentially protrude downward from the outer casing 1 in the order of folding, the folding main roll and the second folding sub roll of the folding rolls face in the traveling direction when viewed from the side. The front side is slightly slanted. For this reason,
When the folding roll rotates, it has the effect of lifting the thin plate material (joint part a) upward as it 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 is possible to prevent floating deviation without easily coming off from (joint part a), allowing extremely smooth folding work, and significantly increasing folding work efficiency.

In addition, by supporting the outer casing 1 by providing both sliding support plates 24, 24 symmetrically at positions slightly below the folding rolls of the plurality of groups, the entire load of the folding machine is carried by the sliding support plates 24, 24. It is to support,
The plural groups of folding rolls have the function of only folding the thin plate material (joint part a), so that when the folding rolls rotate and advance, the vertical thin plate material (joint part a) is folded. It can eliminate fine arc-shaped wrinkles that occur on the nearby flat main plate, and the folding machine can move smoothly. Furthermore, due to the presence of the sliding support plates 24, 24, the folding main roll and the folding sub roll of the folding rolls only need to have a roll thickness corresponding to the folding height, which is economical.

Next, in the invention as claimed in claim 2, each of a plurality of folding rolls for folding the upper edge of the vertical thin plate material (joint part a) is moved to the machine frame 2 in the outer casing 1.
The first and second driven bearings 3a and 3b housed in the machine frame 2 are movably provided at the lower part thereof, and the first and second driven bearings 3a and 3b, which pivotally support each folding roll, can be adjusted up and down with respect to the machine frame 2. By providing this, the height positions of the folding rolls of the plurality of groups can be sequentially lowered from the outer casing 1 and the machine frame 2 in the folding order according to the inclination angle of the coated metal envelope, the material of the coated metal material, etc. If the folding roll is adjusted up and down so that it protrudes, and the folding operation is performed in this state, the folding roll will bite into the lower part of the thin plate material (joint part a). It is possible to prevent floating deviation without easily coming off from the surface, allowing extremely smooth folding work, and significantly increasing folding work efficiency.
A major feature of the present invention is that such smooth breaking work can be performed regardless of the inclination angle of the coated metal envelope, the material of the coated metal material, etc.

The other configurations are the same as the invention of claim 1, and the same effects can be achieved.

Next, in the invention of claim 3, in addition to the configuration of the invention of claim 2, the folding rolls of the plurality of groups are provided so as to be able to reciprocate each other in a substantially horizontal direction, and vertical thin sheets are provided. By providing a folding upper roll that bends the upper edge of the plate material (joint part a) to a substantially right angle so as to be able to spring downward, the plate thickness of the thin plate material (joint part a) to be folded changes, or If the thickness of the thin sheet material to be broken suddenly increases during the folding operation, the horizontal distance between the folding rolls in multiple groups becomes narrower or wider against each other, resisting the elastic force, and the plate thickness increases. can respond to changes in Furthermore, the vertical spacing between the multiple groups of folding rolls that bend the upper edge of the vertical sheet material to almost a right angle against the elastic force becomes narrower or wider, resulting in changes in sheet thickness. It is possible to bend the upper edge to a nearly right angle with any plate thickness. The other configurations are the same as the configuration of the invention in item 2, and the same effects are achieved.

Next, in the invention set forth in claim 4, in addition to the configuration of the invention set forth in claim 2, the plurality of groups of folding rolls are provided so as to be able to repel each other in a substantially horizontal direction, and the folding rolls of the plurality of groups Since the folding main roll or the folding sub-roll of each roll can be opened outward in a substantially horizontal direction, if any trouble occurs during folding work, the folding rolls of the folding machine can be moved vertically. By opening the main folding roll or the sub-folding roll outward in a substantially horizontal direction, it can be easily removed from the thin plate material (joint part a), and folding work efficiency can be significantly improved. Conventionally, the drive of the folding roll was reversed,
This eliminates the disadvantage of having to travel a certain length (for example, about 2 to 3 meters), which was extremely inefficient. Even if it is possible to open the folding main roll or the folding sub-roll outward in a substantially horizontal direction, the vertical folding rolls may be exposed by forcing the folding rolls of the plurality of groups toward each other in a substantially horizontal direction during the folding operation. The thin plate material (joint part a) can be held well and the folding work can be performed. The other configurations are the same as the configuration of the invention in item 2, and similar effects can be achieved.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the present invention, FIG. 2 is a side view with the opening mechanism of the present invention omitted, and FIG. 3 is a perspective view of the present invention.
Fig. 4 is a sectional view taken from Fig. 2 - sectional view taken from the arrow.
FIG. 5 is a perspective view of essential parts of the present invention, FIG. 6 is a partial perspective view of the gearbox, FIG. 7 is a perspective view of the second driven bearing, FIG. 8 is a perspective view of the first driven bearing, and FIG. 9 10 is a perspective view of the folding upper roll portion, and FIG. 11 is a perspective view of the joint portion of the coated metal envelope. 1... Outer casing, 2... Machine frame, 3a... First driven bearing, 3
b...First driven bearing, 8...First folding roll, 9
...Second folding roll, 10...Third folding roll, 11...Fourth folding roll, 24...Sliding support plate, 25...Vertical rod.

Claims (1)

[Scope of Claims] 1. A plurality of groups of folding rolls for folding the upper edge of a vertical thin sheet material are drivably provided at the bottom of an outer casing, and the height positions of the plurality of folding rolls of the plurality of groups are sequentially set on the outer casing in the order of folding. The folding machine is characterized in that the outer casing is supported by sliding support plates which are symmetrically provided at a position slightly below the folding rolls of the plurality of groups so as to protrude further downward. 2. A plurality of groups of folding rolls for folding the upper edge of a vertical thin plate material are each drivably provided under the first and second driven bearings housed in a machine frame in an outer casing, and each of the folding rolls is mounted on a shaft. The first and second driven bearings are provided vertically adjustable with respect to the machine frame, and both sliding support plates are symmetrically provided at a position slightly below the folding rolls of the plurality of groups to support the outer casing. A distinctive feature of the folding machine. 3. A plurality of groups of folding rolls for folding the upper edge of a vertical thin plate material are drivably provided under first and second driven bearings housed in a machine frame in an outer casing, and each of the folding rolls is mounted on a shaft. The first and second driven bearings are provided so as to be vertically adjustable with respect to the machine frame, and the folding rolls of the plurality of groups are provided so as to be resilient to each other in a substantially horizontal direction. A folding upper roll that bends up to a right angle is provided so as to be able to spring downward, and sliding support plates are symmetrically provided at positions slightly below the plurality of groups of folding rolls to support the outer casing. Folding machine. 4. A plurality of groups of folding rolls for folding the upper edge of a vertical thin plate material are drivably provided under first and second driven bearings housed in a machine frame in an outer casing, and each of the folding rolls is mounted on a shaft. The first and second driven bearings are provided so as to be vertically adjustable with respect to the machine frame, and the folding rolls of the plurality of groups are provided so as to be resilient to each other in a substantially horizontal direction, and the folding rolls of each of the plurality of groups of folding rolls are The main roll or the secondary folding roll is provided so as to be openable outward in a substantially horizontal direction, and both sliding support plates are provided symmetrically at a position slightly below the folding rolls of the plurality of groups to support the outer casing. Folding machine.