JPS5995127A - Manufacture of gardening post - Google Patents

Abstract

PURPOSE:To manufacture a gardening post where external periphery and ends of metal wire are coated with synthetic resin by a method wherein the synthetic padding at the ends of post material is heated while depressing the external periphery in the direction of contracting direction to provide the padding with fluidity. CONSTITUTION:A padding 4 on one end of a post material 5 with its external periphery of metal wire 1 coated with synthetic resin 2 is heated to be provided with fluidity and simultaneously a molding device 6 is used to depress the periphery of the padding in the direction of contracting diameter making the synthetic resin P flow to one end of the metal wire 1. The fluidified synthetic resin P flows slowly from the external periphery of one end of the metal wire 1 to the central part. The synthetic resins P flowing in this way come into contact with each other at the central part of one end of the metal wire 1 successively fusing into one body to make their seams disappear. The molding device 6 is composed of a pair of semicylindrical bottomed members 8, 9 longitudinally splitting the bottomed cylindrical member with the inside diameter almost similar to the outside diameter of the synthetic resin 2 supported by a hinge 9 to be freely opened and closed.

Description

[Detailed Description of the Invention] Zero Hatsuri J relates to a method for manufacturing gardening supports used for home gardening and the like.

Conventionally, as shown in Fig. 1, the outer peripheral surface of metal wire Tl+, such as iron wire, is coated with a synthetic resin layer (2) as a support for gardening.
There was one in which the cut end surface of the metal wire (1) was covered by caps 13) (:1) on both ends of the metal wire (1). According to this, the outer peripheral surface and both end surfaces of the metal wire are covered with the synthetic resin layer (2) and the cap (3) and are not exposed to the atmosphere, thereby preventing corrosion of the metal wire and providing a beautiful appearance. However, when manufacturing such gardening supports, it is necessary to separately cover the cap (3), which reduces productivity, and the cap (3) may deteriorate over time.
3), there was a problem in that corrosion would occur immediately if it came off.

The present invention has been made in view of the above points, and an object of the present invention is to provide a method for manufacturing gardening supports made of metal wires whose outer peripheral surfaces and ends are coated with synthetic resin with high productivity in a continuous process. The purpose is to

In order to achieve the above-mentioned object, the present invention provides a support material in which the outer circumferential surface of a metal wire is covered with a synthetic resin layer having a built-up part, and is cut at the center part of the above-mentioned meat M lull part. While heating the built-up part at the end of the strut material, the outer periphery is pressed in the diametrical direction to cause the synthetic resin in the built-up part to flow toward the end of the metal wire, and the flowing synthetic resin is mutually The metal wire is fused to cover the end face of the metal wire.

The present invention will now be explained and explained by way of illustrated embodiments.

Amazu is manufacturing a strut material (5) in which the outer circumferential surface of a metal wire (+) is covered with a synthetic resin layer (2) having a built-up part (41ff) as shown in Fig. 3 (a). (The method will be described later.) As shown in the same figure (b), cut this support material (5) at the center of the built-up part (4) - 1 x 4 minutes to obtain multiple support materials (5) of a predetermined length. K divide. Next, using the molding device +61, the meat/grid part (4) of one end of the cut support material (5) is heated by a predetermined means such as an infrared heater or dielectric heating, and then the material is heated (11i1). At the same time, the outer periphery of the built-up portion (4) is pressed in the diameter reduction direction to cause the synthetic resin P to flow toward one end surface of the metal wire (1). Through this step, as shown in Figures (C) to (e), the fluidized synthetic resin P gradually flows from the outer periphery of one end of the metal wire +2) to the center. . The synthetic resins P that have flowed in this way come into contact with each other at the center of one end surface of the metal wire +1+, and then fuse together to become integrated as shown in FIG. 3(f), and the joint disappears. The other end of the strut material (5) is also treated in the same manner.

In the above 1. As shown in FIG. 4, the molding device (6) includes a pair of bottomed semi-cylinders made by vertically splitting a bottomed cylindrical member having an inner diameter that is approximately the same as the outer diameter of the synthetic resin layer (2). Member +7) +8+ is supported by a hinge (9) so that it can be opened and closed. Such molding equipment (
6), as is clear from FIGS. 3(cXd)(e)(f), the hinge (9) is placed on the extension axis of the support material (5), and the pair of bottomed semi-cylindrical members <71( 81 to sandwich and press the overlay! 7 part (4). When using this type of forming device (6), the support material (5) should be oriented perpendicularly in its longitudinal direction. While feeding at a constant speed in the direction of
) (f) It is effective to carry out the end treatment in order to proceed with the work smoothly. It is also possible to use the roller type molding device (6) shown in FIG. 6. That is, the roller-type forming device (6) is a device in which a pair of rollers (fo+) (+1) rotated in contact with U is provided with an annular semicircular forming tl (country). In the device (6), the support material (5) or both rollers 001
(River forming surface 003) As shown in FIGS. 5(a) to 5(C),
The synthetic resin P of the built-up part (4), which has been fluidized by heating, is effectively applied to the end surface of the metal wire (1) without being pushed out toward the center of the support material (5) (in the feeding direction of the support material). It has the advantage that it can be pushed out to cover the edge. Therefore, the radius of the forming surface (12) α is
), there will be no GC unevenness on the outer peripheral surface (+4) of the end of the manufactured horticultural support. In addition,
It is desirable to improve the mold releasability of the molding bag resin PK#. Further, the molding device (6) may be equipped with a heating function.

Next, as a heating means when processing the end of the support column material (5), a dielectric heating method using the end of the metal wire (1) as a dielectric, an infrared heating method, or other known heating means may be adopted. However, in that case, the optimum heating temperature is a temperature at which the synthetic resin P is softened into a starch syrup shape depending on the type of the synthetic resin P. The thickness of the metal wire T1) is also related to the fluidity due to softening of the synthetic resin P, but the diameter of the central wire is approximately 5 rnr4 or less, and the diameter of the metal wire T1) is even smaller for hollow wires (such as steel pipes). It is desirable that The thickness of this metal wire f1) is determined by the thickness of the embossed part (2) of the synthetic resin layer (2).
Regarding the cross-sectional outer diameter of 4), if the outer diameter of the built-up part (4) is set to about twice the diameter of the metal wire, excess or deficiency of the synthetic resin PKx covering the end face of the metal wire fl) will not occur. , makes a beautiful garden support.

FIG. 2 shows a horticultural support post produced by the above manufacturing method. As is clear from this, the outer peripheral surface of the metal wire (°1) and @ ifi! It is completely covered with a synthetic resin layer (2).

Next, a method of manufacturing the strut material j51'f using a rad die for cross will be explained with reference to FIG.

By providing an inner die (+13) in the die body (16), the inner circumference of the die body 151 and the inner die 0
A wire rod pushing passage (Iδ) is formed by forming a resin passage 07) with the outer periphery of the inner die 6) and passing through the axis of the inner die 6).
Introduce the metal wire fl) from the rear end of the die body (15
) is led out from the nozzle opening (19) of the metal wire +1). As a result, the metal wire i11 is led out in a state in which a portion of the metal wire i11 is integrated into a linear shape by the synthetic resin material P. During such derivation, the inner die (16) is driven back and forth in the direction of arrow A over a short distance with respect to the die body θ, and when the inner die (16) is driven back and forth at predetermined intervals, the composite Built-up parts (4) are formed on the resin layer (2) at regular intervals.As is clear from FIG. Bamboo knot-shaped protrusions (20) are formed to give the gardening support a bamboo-like appearance and to prevent strings, wires, etc. tied to the gardening support from falling off. The shaped protrusions (3) are formed by making the loaf of the back and forth reciprocating drive of the inner die θ6) smaller than that of the build-up capital (4). In addition, when using a gardening support in a home garden etc., it is 40-50cIn
Generally, the length is about 4 m, so the built-up part (4
) is formed at a pitch corresponding to this length, but when the horticultural support is used as a support for tunnel cultivation, the formation pitch is set to a length of about 2 to 4 m.

As detailed above, according to the present invention, a gardening support made of a metal wire whose outer peripheral surface and both end surfaces are coated with synthetic resin can be easily obtained by simply carrying out a series of continuous steps. Therefore, there is no need to put a cap on the end of the support as in the conventional case, which saves time and effort and improves productivity. In particular, the horticultural support obtained by the present invention is
Since the outer circumferential surface and end surface of the metal wire are coated with a seamless synthetic resin layer, the synthetic resin layer does not easily peel off over time in any part of the support, and can be warmed up for an extremely long period of time to maintain its original state of use. It has the advantage of being able to continue.

[Brief explanation of the drawing]

@Figure 1 is a partial fracture pressure surface diagram of a conventional horticultural support, multi-rJ2
3(a), 3(b), (CXd), and 3(eXf) are diagrams showing the steps of the manufacturing method according to the embodiment of the present invention. Figure 4 is a schematic front view of the molding device, Figures 5 (aXb) and (C) are diagrams showing the steps of the manufacturing method according to the embodiment of the present invention, and Figure 6 is a diagram showing a modification of the molding device. Figure 7 is a cross-sectional view showing an example of a cross wire used for manufacturing the support material. (1)...Metal wire, (2)...Synthetic resin layer, (4)...Build-up portion, (5)...Strut material, P...Synthetic resin. B I:jl"f'l' Applicant 9 Winter 0◇l & Ceremony↑Sat Figure 3 Figure 5

Claims (1)

[Claims] (1) A support material made of a metal wire whose outer circumferential surface is covered with a synthetic resin layer having a built-up part is cut at the center of the built-up part, and the ends of the metal wire that are attached to the cut support material are cut. While heating the built-up part, the outer periphery is pressed in the diameter reduction direction to cause the synthetic resin in the built-up part to flow toward the end of the metal wire, and the flowing synthetic resin is fused together to form the metal wire. A method for manufacturing gardening supports that cover the end faces of