JPS583461B2 - Forming equipment for slats with ribbed or uneven patterns for shutters - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a roll forming device (roll forming device) comprising a plurality of forming rolls for forming a rib pattern (Fig. 4) or an uneven pattern (Fig. 5) on shutter slats. In the following description, the inlet and outlet portions of the molding device are also included in the "inside of the molding device"), and relate to a device for manufacturing slats with rib patterns or uneven patterns on the slat surface. .

To manufacture slats with ribbed or uneven patterns,
Embossed steel strips must be purchased from a steel manufacturer and then rolled into slats.

According to this method, it is of course difficult to obtain steel strips with various patterns, but since the interlocking portions of the slats also have ribbed or uneven patterns, it is difficult to obtain the steel strips between the slats when the slats are rolled up. The rotation was not carried out smoothly.

Also, when the slats are placed on the winding drum, the slats overlap each other, but this causes problems such as the slat surface rubbing and the coating peeling off, so steel slats with ribbed or uneven patterns have not been used for a long time. There wasn't.

In addition, there are cases in which a galvanized steel sheet is processed with an uneven pattern and then painted and baked, and there is a case in which an uneven pattern is processed into a finished coated steel sheet (color steel sheet), but the latter has a higher adhesion of the paint film than the former. It is far superior in terms of quality and finish.

The present invention provides an inexpensive device that can directly form slats from finished coated steel sheets (colored steel sheets) belonging to the latter category, and at the same time form rib patterns and uneven patterns in the same process.

Shutter slats are generally formed using roll forming equipment.

Each roll assembly in such a forming apparatus is comprised of an upper roll and a lower roll.

The upper roll and the lower roll may be of an integral type, or they may be of a so-called split type, in which a plurality of parts are tightened together.

The split type has the advantage that it can be manufactured at a lower cost than the former.

In the present invention, the surface of a predetermined divided piece constituting such a divided roll is used as a molding part for forming the rib pattern or uneven pattern of the shutter, and various patterns on the surface of the divided piece are prepared and this can be changed as appropriate. By replacing the shutter slats, it is possible to easily obtain shutter slats with excellent design.

The roll assembly constituting the roll forming apparatus consists of a main roll assembly and an auxiliary roll assembly inserted between the main roll assemblies.

The support shaft of the lower roll is drivingly connected so that the upper roll can be adjusted upward.

Further, the auxiliary roll assembly is not driven and is configured such that both the upper and lower rolls can be moved away from the pass line in the vertical direction.

In other words, it is switchable between active and inactive states and typically has a smaller diameter than the rolls of the main roll assembly.

A general forming apparatus is constructed with only such a main roll assembly, or with an auxiliary roll assembly interposed between the main roll assemblies or next to the final main roll assembly.

Auxiliary roll assemblies in roll forming apparatuses have been provided to assist the main roll assembly in order to correct distortion during material forming or to prevent centering of material flow.

If a roll forming device for forming a certain shape is insufficient in the number of stages when performing another forming, the roll forming process cannot be performed with the number of stages of the forming device.

In this case, by appropriately disposing small-diameter auxiliary roll assemblies between the main roll assemblies, the number of stages can be increased and the same performance as that of a roll forming apparatus with several stages can be achieved.

The present invention uses a known roll forming apparatus, and in order to perform not only the original slat forming process but also other processes, such as forming rib patterns or uneven patterns on the slat surface, the main roll assembly and One of the auxiliary roll assemblies is a split roll, and one of the split pieces constituting the split roll is a molded portion with a rib pattern or an uneven pattern.

Embodiments will be described below with reference to the accompanying drawings.

1 to 3 show slats for shutters that can be molded within the molding apparatus according to the present invention.

13 shows a conventional slat with a flat surface 2;
Figure 1b shows a slat with two parallel ribs 3, 3 continuous in the longitudinal direction (or laterally when incorporated into a shutter) on the surface, and Figure 3 shows the ribs 3 in Figure 2 and ribs on the surface. 3. Rib pattern (Fig. 4) or uneven pattern (Fig. 5)
4.

The present invention thus makes it possible to form many types of slats within a roll forming apparatus.

One method is to create an assembly consisting of split rolls for forming ribs 3 in a plurality of main roll assemblies and auxiliary roll assemblies constituting a forming apparatus, and an assembly for forming rib patterns or uneven patterns 4. Split roll (made by etching or engraving the roll surface)
An assembly consisting of the following is assembled.

If you want to form both the rib 3 and a rib pattern or uneven pattern on the slat, use both roll assemblies.
If you want to form only the ribs 3 or only the rib pattern or uneven pattern 4, raise the upper roll of the unused roll assembly and remove it from the pass line to make it inactive, and the slats will slide on the lower roll. There is no problem in roll forming.

Note that if the roll surface is uneven, a difference in circumferential speed will occur and a beautiful surface will not be obtained. Therefore, the divided piece portions provided with a rib pattern or an uneven pattern are designed to be able to rotate relative to each other.

For this reason, in the case of the main roll assembly, the gear connected to the drive source is removed to make it free, so that it rotates only by frictional force.

Still another method is to incorporate an auxiliary roll assembly between the main roll assemblies to form a ribbed or uneven pattern (see FIG. 9).

As mentioned above, the upper and lower rolls that make up this auxiliary roll assembly can be removed from the pass line, so when they are not in use, the slat material does not come into contact with the auxiliary roll assembly at all. You can pass by.

FIGS. 6 and 7 show an example of the above-mentioned forming apparatus, and by passing a strip material of a predetermined width through the forming apparatus, slats are continuously formed.

The sheets are then cut to a desired length using a cutting device (not shown) and sequentially connected at interlock portions to produce a shirt starter curtain.

In FIGS. 6 and 7, 5 is a drive housing for the main roll assembly, and 6 is also an outboard housing, between which the main roll assembly for forming is attached.

7 is an entrance guide stand for the strip material, 8 is a side roll stand, and 9 is a stand for an auxiliary roll assembly.

Reference numeral 10 is an electric motor that drives the main roll via a transmission 11.

Note that each drive housing 5 receives power from a common drive shaft via gears.

Referring to FIG. 8, the upper roll and lower roll constituting the main roll assembly 12 each have two roll shafts 1 mounted between the drive housing 5 and the outboard housing 6.
3a and 13b.

As is clear from FIG. 8, the main roll assembly 12 consists of a lower roll 12a and an upper roll 12b, each of which is a pair of split rolls.

The part where the rib pattern or uneven pattern is formed is processed to make the rib pattern or uneven pattern appear, and if the pattern is not needed, it can be removed from the pass line using adjustment screws 14 and 15. .

FIG. 9 and 16 show an auxiliary roll assembly, in which the upper and lower rolls constituting this are rotatably supported by two roll shafts 17a and 17b supported between auxiliary roll assembly stands 9 and 9, Not driven.

Therefore, due to the frictional force between the material and the roll, it naturally rotates at the circumferential speed in response to the flow of the material.

Note that the upper and lower openings 16b and 16a shown in the figure are of course of a split type when used for forming a rib pattern or an uneven pattern.

18 is a vertical adjustment screw for the lower roll shaft 17a, and 19 is a vertical adjustment screw for the upper roll shaft 17b.

These adjustment screws 18 and 19 allow the upper and lower rolls to be moved away from the pass line, and the gap between the upper and lower rolls can be adjusted.

As described above, according to the present invention, either the main roll assembly or the auxiliary roll assembly can be made into a split roll without making any special modification to the known forming apparatus, and the predetermined number of parts constituting the split roll can be made into a split roll. It has become possible to mold shirtter slats with extremely excellent designs and a wide variety of lengths with rib pattern or uneven pattern molding parts on the dividing pieces. Moreover, it can be inserted at any stage in the roll forming device, whether it is the main roll assembly or the auxiliary roll assembly, and the slats having a rib pattern or uneven pattern and ribs on both sides can be inserted into the split roll. This can now be done easily by rearranging the divided pieces.

The strength of the slats is improved by providing a rib pattern or uneven pattern, and as a result, the slat width can be made larger than the conventional slat width, which not only improves production efficiency but also saves materials and reduces manufacturing work. This makes it possible to improve efficiency, and the effect is extremely beneficial in terms of shutter production.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of a known slat with a flat surface;
The figure shows a cross-section of a slat with longitudinal ribs on its surface;
Figure 3 is a cross-sectional view of a slat with a rib pattern and uneven pattern on its surface, Figure 4 is a perspective view of a slat with a rib pattern, Figure 5 is a perspective view of a slat with an uneven pattern, and Figure 6 is the forming of the slat. FIG. 1 is a top view of the apparatus shown in FIG. 6, FIG. 8 is a detailed perspective view of the main roll assembly and its supporting drive section, and FIG. 9 is a detailed perspective view of the auxiliary roll assembly and its supporting section. Detailed perspective view. In the figure: -1a, 1b, lc...Slat, 2...Surface (of the slat), 3...
Rib, 4... Rib pattern or uneven pattern, 5...
... Drive housing, 6 ... Outboard housing, 7 ... Entrance guide stand, 8
...Side roll stand, 9...Auxiliary roll assembly stand, 10...Electric motor, 1
DESCRIPTION OF SYMBOLS 1...Transmission, 12...Main roll assembly, 12a...Lower roll, 12b...
Upper roll, 13a...Lower roll shaft, 13b...
... Upper roll shaft, 14, 15 ... Adjustment screw, 16 ... Auxiliary roll assembly, 16a ...
...Lower roll (of the roll assembly), 16b...
Upper roll (of the roll assembly), 17a...lower roll shaft, 17b...upper roll shaft, 18...
...Vertical adjustment screw (of the lower roll shaft), 19...
Vertical adjustment screw (of the upper roll axis).

Claims (1)

[Claims] 1 In a roll forming apparatus consisting of a main roll assembly and an auxiliary roll assembly, an upper roll and a lower roll constituting any one of the main roll assembly and the auxiliary roll assembly are divided rolls. 1. An apparatus for forming a slat with a rib pattern or an uneven pattern for a shutter, characterized in that predetermined divided pieces constituting the split roll are formed into rib pattern or uneven pattern forming parts.