JPS5933618Y2 - Reinforced resin tubular body mold - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a mold for forming a reinforced resin tubular body.

A reinforced resin molding material layer made of resin and reinforcing material is wound around the mold to form a reinforced resin molding material layer, and after curing,
When removing the mold, a large force is required, large-scale equipment such as a hydraulic jack is required, and the work is complicated.

The present invention was made with the aim of eliminating the drawbacks of the conventional products as described above, and its gist is that the outer periphery of a cylindrical mold with a protruding edge on the outside of the end is An annular body is slidably mounted, the protruding edge is provided with a through hole with a female thread, and the annular body has a female threaded portion into which a first bolt is screwed, the through hole serving as a blank hole. is established,
When the first bolt is inserted into the through hole and the first bolt is screwed into the female threaded portion, the annular body can be fixed in a predetermined position of the cylindrical mold, and the female thread of the first bolt Remove the first bolt from the through hole, insert the second bolt that is screwed into the female thread into the through hole, and insert the second bolt so that its tip is in the annular shape. The present invention resides in a reinforced resin tubular body molding die in which the distance between the protruding edge of the cylindrical body and the annular body becomes large when the cylindrical body is brought into contact with a body and tightened.

Hereinafter, the present invention will be explained with reference to embodiments of the drawings.

1 to 3 are sectional views sequentially showing aspects of an embodiment of the present invention, and FIG. 4 is a partially cutaway perspective view illustrating an aspect of an embodiment of the present invention.

1 is a cylindrical mold, and a set of cylindrical members 1 have a portion having an outer diameter approximately the same as the inner diameter of the central portion of the reinforced resin tubular body to be molded.
1.11' is provided with annular brim-shaped protruding edges 111 and 111' that protrude inwardly and outwardly, respectively, an uneven part is provided on the end surface of the other end, and a cylindrical One end of the short cylindrical members 112, 112' having the same outer diameter as the member 11, 11' and provided with uneven parts on the end faces of both ends is connected, and the other ends of the short cylindrical members 112, 112' are in contact with each other. It was made possible to access.

The protruding edges 111° 111' have a large number of through holes 111a...
..., 111 a'...... are provided, and the through hole 1
11a..., 111a' has a female thread installed therein, and a long first bolt 4 using this as a blank hole...
, 4', .

2.2' is an annular body for molding the socket, and the cylindrical member 21°2
Projecting edges 211 and 211' are provided on the outer side of one end of the cylindrical member 21, respectively, and the outer surface shape of the cylindrical member is made to match the inner surface shape of the socket of the reinforced resin tubular body to be molded. .21' and the inner diameters of the protruding edges 211, 211' are such that the smallest portion thereof is approximately the same as the outer diameter of the cylindrical member 11.11'.

The protruding edges 211, 211' have through holes 111a of the cylindrical mold 1.
......, 111a'..., female threaded portion 211a, into which the tips of the first bolts 4..., 4'..., inserted into ..., 211 a
'...... and through hole 211b..., 211b
′...... are provided, and the through hole 211b...
・, 211b' . . . has a female thread, and a short first bolt 5 5 . . . 5
'... is inserted, and the first bolt 5... is inserted.
..., 5'..., the protruding edges 211, 211'
Plate-shaped annular bodies 6, 6' can be fixed to the inner surface of the plate.

Reference numeral 3 denotes a shaft core, and male threaded portions are provided on the outer circumferential surfaces of both ends.

7.7' is a connecting member having a flange portion provided outwardly at one end of the short tube.

On the cylindrical member 11.11' of the cylindrical mold 1, the annular bodies 2, 2' for socket forming, to which the plate-shaped annular body 6°6' is fixed, are attached so as to be slidable in the axial direction, and the short cylindrical The ends of the members 112, 112' are brought into contact with each other, and the cylindrical mold 1 is fixed to the shaft core 3 via the connecting members 7, 7'.

After that, the first bolt 4... 4'...
. . is the female threaded portion 211a of the socket molding annular body 2, 2'.
..., 211 a'..., and screw it into the first bolt 4...

4'.... are fixed to the protruding edges 111, 111' from both sides with nuts at appropriate lengths, thereby fixing the annular bodies 2, 2' for socket molding in the predetermined position of the cylindrical mold 10. Then, a socket-type pipe fitting mold is assembled.

(See Figure 1 above).

After forming a layer of reinforced resin molding material around this mold, when removing the mold from the molded body, remove the nut screwed onto the shaft core 3, remove the shaft core 3, and then remove the bolt 4 of the hair 1.
Remove the nut and remove it from the through hole 111a.
After screwing in the long second bolt 8 which is screwed into the female thread screwed into the female thread, and abutting its tip against the protruding edge 211 of the annular body 2 for socket forming. After tightening, the cylindrical body 1 can be removed from the molded body (see FIGS. 2 and 4).

After that, remove the short first bolt 5 and open the through hole 211b.
After the tip of the long second bolt 9, which is screwed into the female thread screwed into the plate-shaped annular body 6, is further tightened, the molded body is The cylindrical body made of the annular body 2 for molding the socket can be removed from the inner surface of the socket (see FIGS. 3 and 4).

In the above embodiments, the protruding edge is preferably annular brim-shaped because it has strong strength, but the protruding edge is not limited to this. It may be something like that.

As mentioned above, the reinforcing resin tubular body mold of the present invention has an annular body slidably attached to the outer periphery of the cylindrical mold having a protruding edge on the outside of the end thereof, and an annular body provided on the protruding edge. Since the annular body can be fixed in a predetermined position of the cylindrical mold by using the first bolt which has a through hole with a female thread installed therein as a blind hole,
By supplying the reinforced resin molding material layer around the mold, the reinforced resin material layer can be molded to the desired size or inner shape.
Also, when the first bolt is removed from the through hole, a second bolt that is screwed into the female thread is inserted into the through hole, and the tip of the second bolt is brought into contact with the annular body and tightened, the cylindrical body Since the distance between the cylindrical body and the annular body is large, the cylindrical body can be easily removed from the molded body by relatively moving the molded body made of the reinforced resin molding material.

[Brief explanation of drawings]

1 to 3 are sectional views sequentially showing aspects of an embodiment of the present invention, and FIG. 4 is a partially cutaway perspective view illustrating an aspect of an embodiment of the present invention. Explanation of symbols 1...Cylindrical type, 2.2'...
...Annular body for socket molding, 3...Axis core, 4, 4'
, 5, 5'...First bolt, 6゜6'...
... Plate-shaped annular body, 8.8', 9... Second bolt.

Claims (1)

[Claims for Utility Model Registration] ■. An annular body is attached to the outer periphery of a cylindrical mold with a protruding edge provided on the outside of the end so as to be slidable in the axial direction, and a female thread is screwed onto the protruding edge. a through hole is provided, and the annular body is provided with a female threaded portion into which a first bolt is screwed, and the first bolt is inserted into the through hole, and the first bolt is inserted into the through hole.
When the bolt is screwed into the female threaded portion, the annular body can be fixed in a predetermined position of the cylindrical mold, and when the first bolt is unscrewed from the female threaded portion, the first bolt is removed. A second screw that is removed from the through hole and screwed into the female threaded portion of the through hole.
a reinforced resin tubular shape, which is configured such that when a second bolt is inserted and the second bolt is tightened with its tip abutting on the annular body, the distance between the protruding edge of the cylindrical body and the annular body becomes large; Body molding type. 2. The mold for a reinforced resin tubular body according to claim 1, wherein the protruding edge is in the form of an annular flange.