JPH0768835B2 - Method and device for manufacturing cloth slats - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method and a device for manufacturing cloth slats for blinds, and more particularly to a method and a device for continuously manufacturing cloth slats.

(Prior Art) As is well known, as shown in FIG. 5, a blind keeps a large number of thin plate-like slats 11 with a vertical cord 13 hanging from a head box 12 at a predetermined vertical interval. It is provided so that it can be rotated by the ladder tape 14 and the tilt rod 15 for adjusting the light-shielding state.The slats 11 have a width of about 10 mm to 50 mm and a length of about 10 mm. Since it has a structure in which an elevating cord 13 passes through at least two positions on a thin and thin plate of about 50 cm or more, generally, a metal material, usually a lightweight aluminum alloy plate material is used in view of strength and the like. It is configured. In addition, 16 in FIG. 5 is a bottom rail.

In recent years, the personality of the interior has also been emphasized, and color slats and blinds in which the slats are covered with a cloth cover have been proposed in order to meet the demand at a personal and home level. Further, the present applicant changed the aesthetic appearance of the slats covered with the cloth cover, or added the sound insulation property in addition to the character as the light control means. For the purpose of giving, a new cloth slat 21 shown in FIGS. 3 and 4 in which the slat body 22 is covered with a cloth bag 23 and the cloth bag 23 is provided with pleats 24 is newly developed.

(Problems to be solved by the invention) By the way, such a cloth slats provided with pleats on a cloth bag has a novel aesthetic unprecedented and has the value of being able to substitute for curtains due to its sound insulation property, but it is pleated at short intervals. The slat with different design dimensions and shapes can be mass-produced at low cost because it is designed to be attached and the size and interval of the folds are required to be variously changed and set according to demand. It's not always easy to do.

For example, the simplest method is to fold a cloth bag manually, but this is low in production efficiency, and it is difficult to supply a uniform product. In addition, labor costs increase in recent situations. We cannot supply cheap products.

Although it is naturally possible to automatically manufacture cloth slats having various different design dimensions and shapes by using a production facility that employs so-called electronic control, the facility burden is too large.

In view of the present situation as described above, the present invention not only eliminates the sensual coldness of the blind that was imaged because the slats are made of metal, but in addition to the function as a window dimmer, A method for efficiently and inexpensively producing pleated slats that can be expected to have a heat-shielding effect that can be put to practical use even as a window heat shield for cold season in relatively cold regions and temperate regions And to provide a device.

(Means and Actions for Solving the Problems) A feature of the method according to the present invention for achieving the above object is that two raw cloth sheets wider than the plate material are conveyed while conveying the narrow plate material in the longitudinal direction. Along with conveying the sheet material on both the front and back sides, at least one of these raw cloth sheets is conveyed at a speed faster than the sheet material, preferably at a speed of 1.2 to 1.5 times, and the sheet material is conveyed in an overlapped manner. This is to intermittently bond both widthwise edge portions of the raw cloth sheet in the middle of conveyance and then cut into a predetermined long dimension.

The feeding speeds of the two raw cloth sheets can be set to be higher than the feeding speed of the plate material, and thus, the raw cloth sheets on both sides can be pleated.

Further, the feature of the device of the present invention used for carrying out this method is that first unwinding means for unwinding the metal plate sheet in a longitudinal direction from a winding roll wound with a narrow metal plate sheet, Second and third unwinding means for respectively unwinding a raw cloth sheet from two independent winding rolls each wound with a raw cloth sheet wider than the sheet made of metal, and the first to third unwinding means. Conveying means for conveying the three sheets unwound by the means in a laminated state of three layers with the sheet of metal plate in the middle, and a conveying path for the three sheets conveyed in the laminated state of three layers An apparatus for manufacturing a cloth slat, which is provided in the middle of, and has a bonding means for intermittently bonding the width side edges of a pair of raw cloth sheets sandwiching a metal plate sheet at short intervals in the longitudinal direction. To unwind the raw cloth sheet At least one unwinding speed of the unwinding means, the first unwinding metal plate sheet
Is set to be higher than the unwinding speed of the unwinding means.

As a typical configuration of such a device, for example, the raw cloth sheet is formed of a heat-fusible material, and the bonding means is a welding device for applying heat.

The slats produced by these methods and devices are
It is configured as a slat composed of a slat body which is a long plate-shaped member and a long bag-shaped raw cloth that wraps the slat body.

The raw fabric sheet is not particularly limited in its material such as woven fabric and non-woven fabric made of natural fiber, regenerated fiber, synthetic fiber, etc., but is made of synthetic fiber in order to perform the most easy heat welding. Woven cloth, non-woven cloth and the like are preferably used. In addition, the interval between the welding points and the size of the pleats due to wrinkling can be determined as desired.

The slat body applied to the method and apparatus of the present invention is not particularly limited as long as it has the required strength, but generally, an ordinary aluminum thin plate (50 to 200 microns) can be used.

(Example) Hereinafter, the present invention will be described based on an example shown in the drawings.

FIG. 1 shows an example of the outline of the configuration of the device of the present invention for manufacturing the cloth slats 1. The first take-up roll 2a around which the aluminum thin plate 2 is wound and the aluminum thin plate 2 is fed out. A front side raw cloth sheet including an aluminum thin plate unwinding device including a roll 2b, a second winding roll 3a around which the front side raw cloth sheet 3 is wound, and a feed roll 3b for unwinding the raw cloth sheet 3 Unwinding of three sheets by an unwinding device and a backside raw cloth sheet unwinding device including a third winding roll 4a and a feeding roll 4b that unwinds the backside raw cloth sheet 4 with the same configuration. Means are configured.

The feed speed of the feed roll 3a, which forms the unwinding device for the front side raw fabric sheet 3, is set to be higher than the feed speeds of the other feed rolls (2a and 4a), and these three The three sheet members fed by the feed rolls (2a, 3a and 4a) are
Three sheets are stacked by matching the widthwise dimensions so that both width edges of the raw cloth sheets 3 and 4 project on both sides of the width of the aluminum thin plate material.
It is adapted to be conveyed toward the slat winding roll 6.

In addition, the stacking roll 5 and the slat winding roll 6
Between the transfer paths of the welder roll 7a on one side of the path.
And a welder 7b on the other side of the path, and a welder device 7 is provided. An electrode 7c intermittently formed in the circumferential direction on the surface of the welder roll 7a, and a welder 7b.
A pair of raw cloth sheets can be intermittently fused with the counter electrode 7d of 7b.

The rotation speed of the welder roll 7a is determined by the relationship between the transport speed of the feed roll and the installation position.
It is set so that the front raw fabric sheet 3 can be fed at a speed slightly faster than that of the thin aluminum plate material 2 so that the front side raw cloth sheet 3 can be fed. Further, it is preferable that the welder 7b is configured as a movable type that can intermittently come into contact with and move away from the conveyed slat material.

As described above, by manufacturing the cloth slats by the device, a hollow air layer portion is formed inside the folds 24 in terms of the internal structure, and a new fold is apparently formed at intervals of several millimeters. Fabric slats that provide aesthetics can be easily manufactured.

The cloth slats are cut to an appropriate length after finishing the process shown in FIG. 1, finish the edges and remove the frays on both width edges, and make a hole through which the elevating cord passes, and then perform the above-mentioned third step.
Completed as a fabric slat that can be used similar to the blind slats described in the figures.

In order to adjust the pleating interval or change the size of the pleats, it is preferable to provide an appropriate roll rotation speed adjusting mechanism.

(Effect of the Invention) According to the method and apparatus of the present invention, there is an effect that the pleated cloth slats can be mechanically and automatically produced efficiently and at low cost.

Moreover, there is an effect that cloth slats having various different design dimensions and shapes can be easily produced only by changing the feeding speed of the raw cloth sheet, and thus, not only the function as the window dimmer, but also the Since the slats have an air layer in the folds of the cloth bag, they have a cushioning function against the temperature difference between the inside and outside of the bag, and the new blinds that can replace the window sound insulators of conventional curtains that are cool in the summer and warm in the winter can be made inexpensive. Can be provided.

[Brief description of drawings]

FIG. 1 is a view showing a principle structure of a pleated cloth slat manufacturing apparatus according to the present invention, and FIG. 2 is a partially enlarged view showing a relationship between a welding apparatus and a slat formed by passing through the welding apparatus. It is a figure. FIG. 3 is a perspective view including a partial cross-section of the pleated slat, FIG. 4 is a cross-sectional view taken along the line AA in FIG. 3, and FIG. 5 is a schematic perspective view showing the overall structure of a conventional blind. 1 ... 1st winding roll, 2 ... aluminum thin plate material, 3
... front side raw cloth sheet 4 ... back side raw cloth sheet 6 ... slat winding roll 7 ... welder device

Claims (4)

[Claims] 1. While conveying a narrow plate material in the longitudinal direction,
Two raw cloth sheets having a width wider than that of the plate material are superposed on the front and back surfaces of the plate material and conveyed, and at least one of the raw cloth sheets is conveyed at a speed faster than the plate material, and the plate materials are overlapped with each other in the middle. A method for manufacturing a cloth slat, comprising the step of intermittently adhering both widthwise edge portions of a pair of raw cloth sheets to be conveyed during conveyance, and then cutting to a predetermined long dimension. 2. The raw cloth sheet conveyed at a speed higher than that of the intermediate plate material is 1.2 to 1.5 times as fast as the intermediate plate material. Method of manufacturing cloth slats. 3. A first unwinding means for projecting the sheet of metal sheet in a longitudinal direction from a winding roll wound with a sheet of sheet of narrow metal, and a raw cloth sheet wider than the sheet of sheet metal. Second and third unwinding means for unwinding the raw cloth sheet from each of the two independent winding rolls, and these first
To three sheets wound by the third winding means, and a conveying means for conveying the three sheets stacked in a three-layer laminated state with a metal plate sheet in the middle, and three sheets conveyed in a three-layer laminated state Cloth slats provided in the middle of the sheet conveying path, and provided with an adhesive means for intermittently adhering the width side edges of a pair of raw cloth sheets sandwiching the metal sheet sheet at short intervals in the longitudinal direction. The unwinding speed of at least one of the second and third unwinding means for unwinding the raw fabric sheet is the unwinding speed of the first unwinding means for unwinding the metal sheet. A device for manufacturing cloth slats, which is characterized by being set larger than. 4. The apparatus for manufacturing a cloth slat according to claim 3, wherein the raw cloth sheet is made of a heat-fusible material, and the bonding means is a welding device.