JPS61146919A - Manufacture of formwork material - Google Patents

Abstract

PURPOSE:To manufacture a long formwork material through a series of processes, by a method wherein a sheetlike base material is folded outward and inward, cuts of a given length are formed in a zigzag manner, and adhesive is coated on an uncut part to fold it up. CONSTITUTION:Outward-folding lines 2a and inward-folding lines 2b are alternately set at distances of equal widths (w), into which a sheetlike base material 1 having width W is divided, and cuts 3a and 3b, having a given length, are formed in a zigzag pattern. Thereafter, adhesive is respectively coated on the under surface side and the upper surface side of an uncut part 3a of the outward folding line 2a of the base material 1. The base material 1, on which a cut forming process and an adhesive coating process are applied, is folded in a folding screen manner from the folding lines 2a and 2b. This enables manufacture of a constant sized form material by applying a continuous processing, and eliminates the need for a wide space required for manufacture and efficient manufacture of the form material.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a method for producing a frame material that can be used as a slope protection work, an earthwork reinforcement material for embankments, etc., and also as a building material. The present invention relates to a manufacturing method capable of manufacturing a long frame material from a base material through a series of steps.

<Prior art> Conventional methods for manufacturing this type of frame material include, for example, Japanese Patent Laid-Open No. 58
- As described in Publication No. 62221, tape-shaped materials constituting the frame material are successively overlapped by sewing, gluing, or welding so as to form a large number of square or hexagonal squares when stretched. There are manufacturing methods in which sheets are bonded together, or sheets of a fixed length are laminated and stacked at predetermined portions, and then cut to a predetermined width.

<Problems to be solved by the invention> However, in these manufacturing methods, the process from raw material to product consists of multiple steps, so a large space is required for storing intermediate products, etc. The latter method has the disadvantage of requiring a long manufacturing time because the steps must be carried out sequentially, and it is particularly difficult to manufacture long frame materials with the latter method.

The present invention was made with the aim of solving such difficulties, and aims to continuously manufacture a long frame material from a long base material in a simple process from a fixed length base material. It is something.

<Means for Solving the Problem, Part 1> The present invention aligns the upper surface side of the base material with the outer needle line that folds the base material of the sheet material in the longitudinal direction so that the lower surface side of the base material is aligned. Inner fold lines for folding in the direction are set alternately at predetermined width intervals, and cuts of a predetermined length are made on each of the outer needle line and the inner fold line at predetermined vertical intervals, and the cuts on the outer needle line are and the cut on the inner fold line are 1/2 of each other
A cut formation process in which the cuts are formed in a pitch-shifted positional relationship, and the lower surface side (first joint surface ) and the upper surface side (second bonding surface) of the surface area connecting the uncut portions on the inner fold line in the width direction, respectively, and the above two steps are performed. The prepared base material is folded tightly from the can outer needle line and the inner fold line, and the base material is folded tightly from the can outer needle line and the inner fold line. A method for manufacturing a frame material including a folding and joining step of joining the second joining surfaces, wherein the cut forming step and the adhesive application step can be performed by either one as long as the positional relationship is maintained. It can be constructed first. Further, the length of the cut and the vertical interval between the cuts are set according to the size and shape (hexagonal) of the squares formed when the frame material is expanded. Also number 1. The manner in which the adhesive is applied to the second bonding surface includes not only the case where the adhesive is applied to the entire surface but also the case where the adhesive is applied to a part of the bonding surface for bonding. Adhesives also include all types of adhesives. A typical form of processing is a process in which the cut forming process, adhesive coating process, and folding process are carried out in this order as the base material is transported, and when a standard length base material is used, The frame material can be manufactured continuously, and when a long base material is used, the long frame material can be manufactured continuously.

<Function> The present invention can perform the three steps of the cut forming step, the adhesive application step, and the folding step as a series of nine processing steps. Applicable to shaku base material.

In these processes, the part (area) sandwiched by staggered cuts in the base material and the joint surface of the base material each constitute one side of the square formed when the frame material is stretched, and each fold The width interval of the lines (width interval of the cuts) is the height of the frame material,
The size and shape of the squares are determined by the length of the cuts and the vertical spacing.

Means for Solving Problems, Part 2> The present invention provides a method for folding a sheet-like base material in the longitudinal direction so that the bottom surface side of the base material is aligned with an outer fold line that aligns the top surface side of the base material. In addition to making cuts of a predetermined length on each of the outside fold line and the inside fold line at a prescribed vertical interval, the cuts on the outside fold line and the inside fold line are set alternately at a predetermined width interval. The cuts on the line are 1/2 each
The base material is sequentially formed from the starting end so as to have a pitch-shifted positional relationship. in the middle of the process
1. A method for manufacturing a frame material, which includes a joining step in which the second joining surfaces are overlapped and sewn, glued, welded, or fastened with a fastening member, and the joining step is carried out in the middle of the folding step. The joining means uses a joining method depending on the material of the base material, and the joining pattern on the joining surface is set according to the magnitude of tensile strength required of the frame material.

In addition, when the base material has a member such as a tensile strength member or a rope-shaped member between each fold line,
It is also possible to have a configuration in which only the strength or rope-like members that come into contact with each other at the joint surfaces are joined.

<Function> The present invention performs the bonding process on the base material during the folding process after performing the cut formation process, so the three processes can be performed as a series of processing processes, and the base material can be bonded by other means other than adhesion. It is suitable for continuously manufacturing long frame materials from long base materials.

Embodiments of the above two inventions will be described in detail below with reference to the drawings.

<Embodiment 1> FIG. 1 is a plan view of an embodiment of the first invention, showing a pattern for forming cuts in the base material and a first pattern for applying adhesive. Second
Fig. 2 is a plan view showing the base material shown in Fig. 1 folded into a folded state;
The figure is a plan view showing the shape of the squares formed when the frame material manufactured according to this example is expanded. In Figure 1,
Similarly to the outer fold line (2a), fold the sheet-like base material (1) (for example, a non-woven fabric) having a width W into equal parts at intervals of the width W so that the lower surface sides of the base material (1) are aligned. Alternately set inward fold lines (2b) from one edge to fold the material (1) so that the top sides of the material (1) meet, and fold these fold lines (2a), (
2b) Make cuts of a predetermined length on the top (3a), (
3b) with the interval β (=i), and the cuts (3a) and (3b)
It is formed in a positional relationship shifted by 1/2 pitch (=i(L+l)), that is, in a staggered pattern with a phase shifted by 180 degrees.

As a method for forming such cuts (aa) and (3b), for example, the base material (1) is moved in the direction of the first arrow A shown in the figure, and a plurality of slitters (not shown) arranged at intervals of width W are used. ).

Next, connect the uncut portion (88') of the outer fold line (2a) of the base material (1) in the width direction of the base material to the lower surface side of the area (hereinafter referred to as the first joint surface (4a)). , cut and apply on the inner fold line (2b). The application of this adhesive is, for example, a vertical width W
A roller of width (W-2w) is used to connect the first joint surface (4a) to the base material (υ from the bottom surface side), and a roller of width (W-2w) is to connect the second joint surface (4b) to the base material (1) from the top surface side. (1) can be applied to predetermined positions in synchronization with the movement of the base material (1) in the direction of the arrow.Additionally, a roller with a width of 4 may be used and applied by moving it forward and backward in the width direction of the base material (1). Furthermore, the composition may be applied by spraying with a sprayer through a mask.

Note that in the above explanation, after forming the cuts (3a) and (lb), the first cut is made. Although an example has been shown in which the adhesive is applied to the second bonding surfaces (4a) and (4b), either of these steps may be performed first.

Next, the base material (1) which has been subjected to the cut forming process and the adhesive application process shown in the first figure is folded along the fold line (2a), as shown in the second figure.
(2b) Fold it more tightly. The figure shows various guide members and two bending rollers for folding.

Although pressing rollers and the like are not shown in the drawings, such processing can be easily accomplished by conventional means. Through this folding process, the first and second joint surfaces (4
a) and (4t)) are respectively joined.

That is, in this embodiment, each surface area A and 4 shown in the first diagram are used. ,,, two and two, ho and ho, ... to and to, chi and chi, ... le and no C.
O and O...power and power are joined together and become one. The frame material (5) manufactured in this manner is rolled up into a roll or folded to an appropriate length to be packaged as a product.

The cut forming process, adhesive application process, and folding process can be performed successively from the starting end of the base material (1), so that from the base material of the standard size to the frame of the standard size. It is possible to continuously manufacture a long frame material from a long base material.

FIG. 3 is a plan view showing the stretched state of the frame material manufactured according to the above embodiment, with cuts (3a) having the length shown in FIG.
When (ab) are formed with vertical intervals (la) and (lb) of 1, the frame material has regular hexagonal squares as shown in the figure.

In Figure 4, the vertical spacing between the cuts is made smaller, and the first. This is a plan view showing a stretched state of the frame material (5) in which the second joint surfaces (4a) and (4b) are formed into narrow strips; in this case, the frame material is formed with rectangular grids.

<Embodiment 2> FIG. 5(a) is a plan view showing the processing state of an embodiment of the second invention, FIG. 5(b) is a sectional view taken along the line B-B, and FIG.
is a sectional view taken along line C-C. This example shows the case where a frame material is manufactured using a thin metal plate such as a thin steel plate as the base material (1).The base material (1) is pulled in the direction of arrow B in Fig. 5(a). The folding roller (6a)
, (6b) and (6c) are folded from the upper and lower surfaces of the base material (1) from the fold lines (2a) and (2b),
Welding rollers (7a), (7b) and (8a), (
8b), respectively. second joint surface (4a),
(4b) Uncut portion (3a') of (first illustration), (
The edges opposite ab) are seamlessly welded or spot welded at appropriate intervals. Welding roller (7a), (7
b), (8a), (8b) are respectively pedestals (7c)
, supported by (8c) and arrowed respectively.

The frame (7c) is driven from below the base material (1) in the direction of arrow C (illustrated in Figure 5(b)), and the frame (7c) is driven in the direction of arrow F (illustrated in Figure 5(b)). 8c) is driven from above the base material (1) in the direction of arrow E (as shown in FIG. 5(c)),
Furthermore, the welding rollers (7a) and (7b) move in the direction of the arrow,
Welding roller (8a).

(8b) is configured to be driven to open and close in conjunction with the direction of arrow F. The base material (1) is a folding roller (6a
), (6b), (6c) and the guide roller (9), the sheet is folded into a flat state. 1st by welding roller. Second joint surface (4a).

Welding (4b) is performed in the middle. First, welding roller (7
a), (7b) and fold the tip of each roller along the fold line (2).
a).

Position it directly below (2b). Next, when the base material (1) moves in the direction of arrow B and the tip of the cut (3b) comes directly above the welding rollers (7a) and (7b), the frame (7c)
) is raised to spread out the cut (3b), and then moved in the direction of the arrow to sandwich the base material (1) with welding rollers (7a) and (7b). The four edges facing the line (2a) are welded at the same time, and then the welding rollers (7a) and (7b) are opened to lower the frame (?-c) and stand by until the next welding operation begins. enter.

On the other hand, the welding rollers (8a) and (8b) in the next stage operate in the same manner to spread out the cut (3a) and simultaneously weld the edges at three locations facing the inward fold line (2b). During this time, the spreading roller (8c) prevents the other side of the base material (1) from contacting the welding roller (8a).

In the above embodiment, a welding roller with a tapered tip was used to spread out the cuts (la) and (3b) in the base material (1). A member for inserting and spreading and a welding roller may be provided separately.

In this case, instead of the welding roller, the base material may be fastened with a fastening member such as a rivet or stapler, or if the base material is a thermoplastic material, it may be welded by heating. When the base material is a woven fabric, it may be formed into lines with sewing thread, or it may be formed by spraying a thermosetting adhesive and heating it to bond.

Furthermore, if the base material is such that rope or a substitute for it is woven into the middle part of the fold lines (2a) and (2b), only the rope or rope is sewn, or a metal wire, etc. It is also possible to have a configuration in which the

<Effects of the Invention> According to the present invention, a fixed length or long frame material can be manufactured by performing continuous processing steps on a fixed length or long sheet-like base material, so that the manufacturing process can be simplified. It is simple and does not require a large space for manufacturing, which has great practical effects.

[Brief explanation of the drawing]

Figures 1 to 3 are diagrams for explaining one embodiment of the first invention, and Figure 1 is a plane showing the positional relationship between the pattern of cuts made in the base material and the bonding surface to which adhesive is applied. Figure, 2nd
The figure is a plan view showing the state of the base material in the process of folding the base material, which has been subjected to the cut forming step and the adhesive application step shown in FIG. Fig. 4 is a plan view showing the shape of the squares formed when the frame material is stretched. FIG. 5 is a diagram for explaining an embodiment of the second invention, and FIG. Plan views showing the positional relationship with the rollers, (b) and (c) are B-
B, C-C arrow side view. <Explanation of symbols> (1) Base material, (2a) Outer fold line, (2b)
...inner fold line, (8a), (lb)-cut, (a
a), (lb)...Uncut portion, (4a), (4
b)=-1st. Second joint surface, (5) --- Frame material, (6
a). (6b), (6c) ---Folding roller, (7a
), (7b), (8a). (sb) - Welding roller, (7c), (8c) - Frame, (8d) - Spreading roller, (9) - Guide roller.

Claims (4)

[Claims] (1) In the longitudinal direction of the sheet-like base material, the outer folding line where the base material is folded while the lower surface side is brought together and the inner folding line where the base material is folded so that the upper surface side of the base material is brought together are arranged at a predetermined width interval. At the same time, cuts of a predetermined length are made on the outer fold line and on the inner fold line, respectively, at a predetermined vertical interval, and the cuts on the outer fold line and the cuts on the inner fold line are shifted by 1/2 pitch from each other. A cut forming process in which the cuts are formed so as to have a positional relationship, and the lower surface side (first joint surface) of the surface area connecting each uncut portion (vertical interval portion) on the above outer fold line in the width direction and the above inner inner surface. There is an adhesive application process in which adhesive is applied to the upper surface side (second bonding surface) of the area where each uncut portion on the fold line is connected in the width direction, and the base material that has been subjected to the above two processes is A method for manufacturing a frame material, comprising a folding and joining step of folding the material from each of the outer folding lines and the inner folding line, and joining the first and second bonding surfaces, respectively. (2) The method for producing a frame material according to claim 1, wherein the sheet-like base material is a woven fabric, a nonwoven fabric, paper, a synthetic resin sheet material, a synthetic resin net material, a thin metal plate, or a metal net material. . (3) In the longitudinal direction of the sheet-like base material, the outer folding line for folding the base material so that the lower surfaces of the base material meet and the inward folding line for folding the base material for the upper surface side of the base material in the direction that the base material is folded so that the upper surface sides of the base material meet are aligned at a predetermined width interval. At the same time, cuts of a predetermined length are made on the outer fold line and on the inner fold line, respectively, at a predetermined vertical interval, and the cuts on the outer fold line and the cuts on the inner fold line are shifted by 1/2 pitch from each other. a step of forming cuts sequentially from the starting end of the base material so as to have a positional relationship; a folding step of folding the base material with the cuts into a folding fold from each fold line; and a folding step of the above folding step. A method for producing a frame material, including a joining step in which first and second joining surfaces are sequentially overlapped and sewn, glued, welded, or fastened with a fastening member. (4) The base material has tensile strength members such as force threads or ropes arranged between each fold line and fixed together, and in the middle of the folding process, the first
4. The method for manufacturing a frame material according to claim 3, wherein the tensile strength members that are adjacent to each other within the second joint surface are joined.