JPS5966925A - Roll forming device - Google Patents

Abstract

PURPOSE:To obtain a device capable of obtaining easily a metallic plate band which is seam-welded to a large area plate body by providing specifically a bending roll of a metallic plate band covered with a non-conductor, and a wheel brush for stripping off a covered film. CONSTITUTION:When a covered stainless steel plate 1 to whose surface a film of a non-conductor is applied is fed into a roll forming device from the side of wheel brushes 3, 3', the film of prescribed parts 2, 2' of the plate 1 is stripped off by the brushes 3, 3'. The parts 2, 2' are set so as to be positioned in rise parts 1b, 1b' which are formed later. When the plate 1 is further fed in, both side edge parts in the plate width direction are bent so as to rise by 45 deg. in the upper direction, respectively, at a prescribed position from the corner by the first forming rolls 4, 4', and an intermediate shape of rise parts 1a, 1a' is formed. They are further bent so as to rise by 90 deg. by the second forming rolls 5, 5', and the rise parts 1b, 1b' of the final shape are formed.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for forming a metal plate strip having a nonconducting film applied to its surface, by using a roll forming device that peels off the film in certain parts of the metal plate strip. Regarding weight.

In general, waterproof surface materials that cover the surfaces of building roofs, etc.
For example, multiple metal plate strips (e.g., stainless copper plates, shell structural steel plates) with rising parts on both sides in the width direction are laid down in a flat plate shape, and the facing rising parts are welded to form one large-area plate. There is something that seems to have formed. Such a waterproof face is formed as follows. -i.e., q
) A stainless steel plate strip is formed with rising portions on both sides in the width direction using a conventional roll forming device.

■Multiple pieces of stainless steel plate strips forming the 9 upright parts,
It is laid at a predetermined location on the roof of a building, etc., and fixed to a hanger planted on the roof, etc.

[Phase] Next, the rising edges of adjacent stainless steel plate strips facing each other are seam welded.

As a result, a waterproof surface material that is a single large-area plate is formed. For such a waterproof surface, from the viewpoint of prevention of rust, anti-glare, etc., a broken metal plate strip such as a damaged stainless steel plate whose surface has been coated with a coating film agent is used.

However, the paint film agent is generally an organic material that is an electrical nonconductor, and therefore, the paint film agent is coated on the surface. ? In a state of confusion/
- Since seam welding cannot be strained, conventionally the following means (four representative ones are listed) have been adopted to perform the seam welding. That is, (1) Using a hand grinder or the like, an operator manually peels off the surface film of a predetermined portion of a coated metal plate strip such as a broken stainless steel plate.

(1)) A coated metal plate strip that can be welded is used, in which metal powder is mixed into a paint film agent to make the surface film itself conductive.

■Only the surface film at the part where seam welding is to begin is peeled off by mechanical means, and from then on, the heat during welding burns and carbonizes the film on the adjacent parts, making the film conductive while seam welding continues. continue.

■Use a partially fractured metal plate strip that has been coated in advance with a paint coating agent, leaving only the parts necessary for seam welding.

The four mentioned above are representative ones, ■, ■, ■, ■.
In the case of ■, the worker has to manually peel off the coating on the designated part, which makes the peeling work complicated, time-consuming, and uneconomical; and in the cases of ■ and Carbon in the agent may penetrate into the metal plate strip, causing deterioration of corrosion resistance and toughness.
In these cases, it is not possible to use coated metal sheet strips that are generally available on the market, and a specially ordered product must be used, which leads to increased costs.

The present invention has been made in view of such conventional problems, and an object of the present invention is to bend the metal plate band before, after, or during processing. The purpose of the present invention is to provide a roll forming device that peels off a film at a predetermined portion.
A further object of the present invention is to provide a roll forming device that has a simple structure, is easy to handle, and has a film peeling function.

Thus, the present invention provides a metal plate strip 1 whose surface is coated with a nonconductor film, as shown in the embodiments shown in FIGS. 1 to 5.
A roll forming device characterized by comprising: a forming roll A for bending into a predetermined shape; and a wheel brush 6,6' for peeling off the coating on predetermined portions 2, 2' of the metal plate strip 1. related to.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

1 to 5 show an embodiment of the present invention.

First, to explain the structure, A shown in FIG.
, 4' and the second forming rolls 5, 5' of 2&I to 44
The two sets of first forming rolls 4, 4' and the two sets of second forming rolls 5, 5' are both formed by the first forming rolls 4, 4' and the 20,000th V-shaped roll. 5 and 5' are disposed facing each other on both sides in the width direction of a broken stainless steel copper plate, which is a specific example of the metal plate strip 1 fed into the cans 5 and 5'. The first forming rolls 4, 4' each have an upper roll 6.6'
To the left of the lower rolls 7 and 7', each upper roll 6 has a tapered surface 6 a having an inclination angle of, for example, 45 degrees, at the outer end in the width direction of the coated stainless steel copper plate 10 .
Each lower roll 7.7' is provided with a tapered tapered surface 7a having an inclination angle of 45 degrees at the outer end in the width direction.

7 al are provided corresponding to the tapered surfaces 1) a and 6 a'. The first forming rolls 4, 4' are
The first step is to bend the metal plate strip 1 into a predetermined shape.
Steps are set, and the rising portions 1a, 1a' of the first step raised at 45 degrees are formed in the width direction picture @ll of the coated stainless steel plate 1 by the first forming rolls 4, 4'. 8. B' is a pressure adjustment handle for the first forming rolls 4, 4', and this pressure adjustment knob 8.8
The pressing force applied to the coated stainless steel plate 1 is adjusted so that the upper rolls 6, 6' move forward and backward in the vertical direction by the rotation of ', and the predetermined intermediate shape of the rising portions 1a, 1a' can be formed. Each upper roll 6 of the first forming rolls 4, 4'
．． 6' and each lower roll 7,7' are each fixed to the same axis.

The second forming rolls 5, 5' each have an upper roll 9.9
' and the lower roll 10, 10' and the side roll 11°11
' and these rolls 9, 9', 10.10
'11', 11' are both formed in a cylindrical shape, and upper and lower rolls 9.9' are installed vertically facing each other.

10. With respect to 10', only the side rolls 11 and 11' are arranged so that their axes are directed in the vertical direction and their outer circumferential surfaces face the outer end surfaces of the upper rolls ν and 9'. There is. 1
2, 12' is the pressure of the second forming rolls 5, 5';! !
, l is an adjustment handle, and by rotation of this pressure adjustment handle 12° 12', the upper roll 6.6' moves forward and backward in the vertical direction, so that the predetermined final shape of the rising portions 1a, 1a' can be formed. Next, the pressure applied to the coated stainless steel plate 1 is adjusted. Although not shown, the upper part roll 11
, 11' can also be adjusted forward and backward with respect to the upper roll 6.6'. Moreover, each upper roll 9, 9' and each lower roll 10° 10' of the second forming roll 5° 5' are:
Each is attached to the same axis. These second forming rolls 5, 5' set the final stage of bending and processing the metal plate strip 1 into a predetermined shape, and these second forming rolls 5, 5'
90 on both sides in the width direction of the stainless copper plate 10 coated with
The final stage rising part 1b, 1
form b'. Further, the second forming rolls 5, 5' are driven by a rotary drive device (not shown), and transfer the coated stainless steel sheet 1 while pressurizing it.

The reference numeral 3.6' shown in Fig. 1 is a wheel brush that is used to peel off the film on the predetermined portions 2, 2' of the gold stock plate band 1, and this wheel brush 6.3' is vertically opposed. Two sets of these are arranged on both sides of the punched stainless steel plate 10 in the width direction. Each soil wheel brush and each lower wheel brush are fixedly attached to the same shaft, and are rotationally driven by a rotational drive device (not shown). As a specific example of the wheel brush 6.3', for example, a stainless steel wire brush such as the one shown in FIGS. 3 and 4 in which a large number of stainless steel wires 6b are implanted around the outer periphery of the brush body 3a is used. In addition to this, it is also possible to use a steel wire flan, and if there is a high risk of failure, a wheel brush etc. wrapped with non-woven fabric etc. can also be used. . Note that by adjusting the planting width of the stainless steel wire 3b, the peeling width of the predetermined portions 2, 2' can be adjusted to be wide or narrow.

13, 13' are pressurizing parts 7 for wheel brushes 3, 3'.
By controlling the pressurizing force of the pressurizing cylinders 13 and 13', the peeling of the surface film is adjusted. Here, the predetermined portions 2, 2' refer to the necessary portions for seam welding the two coated stainless steel plates 1 to each other, and in this embodiment, the rising portions 1b, 1
It refers to a narrow band-shaped part continuous in the longitudinal direction on both the front and back sides of b'.
(shown in figure).

In addition, FIG. 5 is table r? 11 is a diagram showing the dust collection mechanism for grinding debris of the coating, and the frozen dust mechanism is
', 15, 15', a tact 16, 17, a dust collection power device (not shown), and a dust collection cover 14°14'.
, 15.15' are arranged so as to surround each wheel brush filter 6', and the film layer ground by the wheel brush 6.6' is removed by the suction force of the dust collection power device.
Dust collection cover 14.14', 15°15' to duct 16
, 17 to collect dust.Next, the operation of this roll forming apparatus will be explained.

When the coated stainless steel plow plate 1 whose surface is coated with a non-conductive film is fed into this roll forming apparatus from the side where the wheel brushes 6 and 6' are located, the wheel brushes 3 and 6'
By cutting square stainless steel plate 10H "leg part 2, 2'
The film is peeled off. These predetermined portions 2, 2' are rising portions 1b that will be formed later.

It is set in advance to a predetermined position so that it is located within 1 b'. When the punched stainless steel plate 1 is further fed, the edges on both sides of the coated stainless steel plate 10 in the width direction are bent by the first forming rolls 4 and 4' so as to stand upward at a 45-degree angle from each corner at a predetermined position. Startup section 1a
, 1 a' is formed. Furthermore, the rising portion 1 a of the coated stainless steel plate 1,
1 a' is 90 by the second forming roll 5.5'
The rising portion 1b is bent 9 times to form a final shape.

1 b' is formed. In this way, a coated stainless steel copper plate 1 is formed, the surface of which is coated with a nonconducting film, and from which only 9 [feet portions 2' and 2'] of the film are peeled off.

In this case, the film on the predetermined portions 2, 2' is automatically peeled off by the wheel brushes 3, 3' during the bending process into the predetermined shape, so it is not necessary to manually perform the work. There's no need.

The processed stainless steel sheet 1 is used, for example, as a waterproof surface for the roof of a building. To assemble the waterproof surface, first place plate 1 (heated stainless steel pot) on H1 of the roof, etc.
The coated stainless steel plate 1 is laid in a fixed position, and the covered stainless steel plate 1 is fixed to a hanger fixed in advance to the roof or the like. At the same time, move another stainless steel plate 1 to the front and place it on the stainless steel plate 1 to be inspected.
(・Rising portions 1 b laid all over and facing each other,
1 Seam weld the predetermined portions 2, 21 of b'. From then on,
The above steps are repeated to form a waterproof surface layer of a desired size.

At this time, the predetermined portions 2, 2' for seam welding have their coatings removed in advance by the wheel brush 3, 6', so that the extracted stainless steel plate 1 will not be carburized during welding and will have corrosion resistance. , deterioration of toughness etc. can be prevented. Moreover, since the coating is peeled off during the bending process of the coated stainless steel plate 1, there is no need to use a specially ordered covered stainless steel copper plate 1 with an uncoated portion of the coating provided in advance.
Generally available on the market. Since the coated stainless steel plate 1 can be used, there is no increase in the manufacturing cost of the waterproof surface. In this example, forming roll A
Since the stripping process using the wheel brush 6.6' is provided before the wheel brush 6.6', the axis of rotation of the wheel brush 6.6' can be made parallel to the surface of the coated stainless steel plate 10. Therefore, the wheel brush 6.6' You can easily adjust the position of several phrases.

Note that the film peeling step using the wheel brush 6.6' may be provided between the first forming rolls 4, 4' and the second forming roll 5.5';'pl) It may be provided after the bending process. In this case, the rising portions 1a, 1a' or 1b, 1
Wheel brush 6.6' depending on the rising direction of b'
Set the angle of Furthermore, it is of course possible to remove only the coating on one side of the stainless steel plate 1 to be tested, and in this case, for example, either one of the upper and lower wheel brushes 6. It is configured to be able to move forward and backward in the vertical direction so as to be separated from the bosom stainless steel plate 1. Furthermore, the forming roll A includes a first forming roll 4,
Of course, only one of the forming rolls 4' or the second forming rolls 5, 5' may be provided, or three rolls may be provided.

As explained above, according to the present invention, a wheel brush is provided in the roll forming equipment to cut the oil. Therefore, there is no need to carry out peeling off of the surface film at a predetermined portion, and an economical roll forming apparatus can be provided in which the surface film can be easily and quickly peeled off at a predetermined portion. Furthermore, this roll Dν and forming device has a simple structure as mentioned above, is easy to handle, and has a peeling function of +10 with less damage etc.
The resulting roll-formed steel can be provided.

[Brief explanation of the drawing]

FIG. 1 is a schematic explanatory diagram showing embodiments of the present invention, and FIG.
The figures are an enlarged view of the S part in Figure 21■1, Figure 3 is a front view of the wheel brush, which is an essential element of this invention, and Figure 4 is a sectional view taken along the line IV-IV in Figure 3. , FIG. 5 shows the main part of the dust collector surrounding the wheel brush. It is bright and concave. 1 is a metal plate band (coated stainless steel copper plate), 1a, 1a'
1b' and 1b' are rising parts of the intermediate shape; 2 and 2' are predetermined film peeling parts; 3 and 3' are wheel brushes; 4 and 4' are the first forming rolls; 5
' is a second forming roll, 13 and 13' are pressure cylinders, and A is a forming roll. Patent applicant Nippon Yakin Kogyo Co., Ltd. Agent Patent attorney Tetsuya Mori Patent attorney
Yoshiaki Naito, patent attorney, Shimizu, patent attorney, Kaji Yama,
Figure 3 Figure 4! /lJ 153-

Claims (2)

[Claims] (1) It is equipped with a forming roll that bends a metal sheet strip whose surface is coated with a nonconducting film into a predetermined loop shape, and a wheel brush that peels off the film on a predetermined portion of the metal sheet strip. Characteristic roll forming equipment 4゛. (2) The roll forming equipment according to claim 1, wherein the peeling of the film using the wheel brush is performed before the bending process using forming rolls.