JPH0890630A - Production device for synthetic resin member with needles - Google Patents

Abstract

PURPOSE: To automatically produce a tool for preventing a harm of birds at high efficiency by a method wherein a first mold body internally provided with a recessed and projected part, that is recessed and projected in the cross section and continuously projected in the longitudinal section, on the outer periphery of a cylindrical part is connected to the end part of an extruder, and a second mold body of the same shape as the first mold body is rotatably connected to the top part of the first mold body. CONSTITUTION: A first mold body 3 connected to an extruding end part 2a of an extruder 2 is internally provided with a cylindrical mold part 6, a shaft part 7, and a recessed and projected mold part 8. A mold part 9 of the same shape as the first mold body 3 is pierced through in a second mold body 4. A resin material extruded from the extruder 2 is injected into the cylindrical mold part 6 and the recessed and projected mold part 8 of the first body 3. A first molded piece is pressed against the second mold body 4. Next, the second mold body 4 is rotated by a rotation actuating device 12 provided on the first mold body 3 until the mold parts 6, 8 are fitted in the mold part 9. A second molded piece is fed into the mold part 9. After that, the mold part 8 is similarly covered with the second mold body 4 by a pneumatic cylinder 15. After that, this operation is similarly repeated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synthetic resin needle-equipped member manufacturing apparatus for manufacturing a bird damage protector used in advance to prevent fecal damage and the like caused by birds stopping on electric wires. It is about.

[0002]

2. Description of the Related Art As a conventional bird damage protector, for example, there is one as described in Japanese Utility Model Publication No. 3-83426. That is, this bird damage protector is, as described in the specification of the above-mentioned publication, a tube body which is composed of an elastic member and which is detachably attached by covering an overhead wire. In the longitudinal direction on the outer side of the, the one ridge projection portion is provided which extends to reach the inner diameter portion of the tubular body and is formed with a single notch capable of expanding the inner diameter portion, and A plurality of rows of needle-shaped portions formed by implanting a plurality of needle-shaped bodies are provided so as to extend ".

[0003]

However, in order to manufacture the bird damage protector having the above-mentioned structure, it is necessary to install 1 on the outer peripheral portion of the tubular body.
Since a plurality of needle-shaped bodies must be sequentially planted for each book, there are problems that it takes a lot of time and labor, work efficiency is low, and manufacturing cost is high.

The present invention was developed in order to solve the above-mentioned problems, and the purpose thereof is to continuously and efficiently automatically and automatically install a bird damage protector without implanting needles. An object of the present invention is to provide an apparatus for manufacturing a member with a needle made of synthetic resin that can be manufactured.

[0005]

Therefore, the present invention has the following structure in order to achieve the above object. That is, in an extrusion molding machine in which a desired mold is attached to the extrusion end portion so that a desired molded product can be formed, a convex shape which is continuous in the vertical cross-sectional direction is formed on the outer periphery of the cylindrical portion in the cross-sectional uneven shape. A first mold body having a concavo-convex mold part formed therein is connected to the extrusion end of the extruder, and a cross section of the same shape composed of a cylindrical mold part and a concavo-convex mold part of the first mold body. A second mold body having a surface shape and equivalent to that of the first mold body is rotatably connected to a tip end portion of the first mold body, and further an operating device for reciprocally rotating the second mold body by a predetermined angle is provided. This is a configuration provided in the two-mold body.

[0006]

With the above-mentioned structure, the resin material extruded from the extruder is injected into the cylindrical mold portion and the concave-convex mold portion of the first mold body so as to have a predetermined shape in the first mold body. One molded product is pressed toward the second mold body by the pressure generated by the extrusion of the extruder.

First, the first mold body and the second mold body are in contact with each other so that the mold part formed on the second mold body matches the concave-convex mold portion of the first mold body. That is, the concavo-convex mold part on the tip end surface side of the first mold body is in a state of being matched with the surface of the second mold body on which the mold part is formed.

From the above state, the actuating device is operated to intermittently rotate and reciprocate the second mold body to seal or open the concave-convex mold part of the first mold body with the second mold body. As a result, the first molded product extruded from the first mold body is formed with a large number of needle-shaped bodies successively in the circumferential direction and the longitudinal direction of the outer periphery of the cylindrical body by the above-described operation of the second mold body. Will be done. In this way, it is possible to manufacture a second molded product in which a large number of needle-shaped bodies are formed on the outer circumference of the tubular body.

[0009]

Embodiments of the present invention will be described below with reference to FIGS. In the figure, reference numeral 1 is a synthetic resin needle-equipped member manufacturing apparatus according to an embodiment of the present invention. The synthetic resin needle-equipped member manufacturing apparatus 1 includes an extruder 2 and a first mold 3. It is constituted by the second mold body 4 and the actuating device 5.

Explaining in detail, the extruder 2
Is a device in which a desired mold is attached to the extrusion end 2a so that a desired molded product can be manufactured. This extruder 2
The first die 3 is connected to the extrusion end 2a of the. The first mold body 3 includes a cylindrical mold portion 6, a shaft portion 7 formed in the center of the cylindrical mold portion 6, and an outer peripheral surface of the cylindrical mold portion 6 in a cross-section uneven shape in a vertical cross-section direction. The concavo-convex portion 8 formed as a continuous convex shape is formed inside. Further, a groove 3b is formed on the end surface 3a of the first mold body 3 along the vicinity of the outer peripheral end. The groove 3b rotatably supports a second mold body 4 described later.

The second mold body 4 is formed by penetrating a mold part 9 having a cross-sectional shape, which is composed of the cylindrical mold part 6 and the concave-convex mold part 8 of the first mold body 3. A convex portion 10 is formed on the inner surface side of the second mold body 4 so that it can be loosely fitted in the groove 3b formed in the end surface 3a of the first mold body 3. As described above, the convex portion 10 of the second mold body 4 is loosely fitted in the groove 3b of the first mold body 3 to connect the second mold body 4 to the first mold body 3. Further, the outer periphery of the second mold body 4 is formed with a projecting portion 4a that partially projects outward, and a hole 13 is formed in this projecting portion 4a. The second mold body 4 is operated by connecting the protruding portion 4a and the rotation actuating device 12 described later.

The second mold body 4 further connected to the first mold body 3
A rotation actuating device 12 is provided on the side of the second mold body of the first mold body 3 for rotating the machine in the normal and reverse rotation directions by a predetermined angle. The rotary actuator 12 is composed of a support bracket 14 provided on the first mold 3 and a pneumatic cylinder 15. Rear part 15a of the pneumatic cylinder 15
Is connected to the support bracket 14, and the tip 16a of the rod 16 of the pneumatic cylinder 15 is connected to the projection 4a of the second mold body 4 through the hole 13 and the bolt 17 and the nut 18. Reference numeral 19 is an inlet for a synthetic resin raw material.

As shown in FIG. 4, by forming a convex portion 18 in the longitudinal direction at one position of the shaft portion 7 of the first mold body 3, the cylindrical portion of the molded product is separately formed in the longitudinal direction. can do. The other structure is similar to that of the above-described embodiment, and the description thereof is omitted.

With the above-mentioned structure, the resin material extruded from the extrusion molding machine 2 is injected into the cylindrical mold portion 6 and the concave-convex mold portion 8 of the first mold body 3. The first molded product (not shown) having a predetermined shape in the first mold body 3 is pressed against the second mold body 4 side by the pressure generated by the extrusion of the extruder 2.

First, as shown in FIG. 2, the rod 16 of the pneumatic cylinder 15 contracts so that the mold portion 9 formed on the second mold body 4 and the concave-convex mold portion 8 of the first mold body 3 do not coincide with each other. I am doing it. That is, the concave-convex mold portion 8 of the first mold body 3 is in a state of being closed by the surface of the second mold body 4 on which the mold portion 9 is not formed.

From the above state, as shown in FIG. 3, the rod 16 of the pneumatic cylinder 15 is extended and the second mold body 4 is rotated by a certain angle. As a result, the mold parts 6 and 8 of the first mold body 3 and the mold parts 9 formed on the second mold body 4 are matched, and the first mold parts 3 and 8 of the first mold body 3 are formed. The tip of the second molded product is fed into the mold 9 of the second mold 4.

As described above, the rod 16 of the pneumatic cylinder 15 is contracted immediately after the tip portion of the second molded product is fed into the mold portion 9 of the second mold body 4, and the first mold body 3 is processed as described above. The mold part 8 is closed with the second mold body 4. At this time, the first molded product formed by the first mold body 3 is continuously sent to the second mold body 4 side. At this time, in the second mold body 4, the first molded product is molded as a tubular body or a plate state without irregularities.

Then, as shown in FIG. 3 again, the rod 16 of the pneumatic cylinder 15 is extended and the second mold body 4 is rotated by a certain angle, so that each mold part 6 and 8 of the first mold body 3 and the second mold body are rotated. The mold portion 9 formed on the body 4 is matched. By intermittently repeating the expansion and contraction of the rod 16 of the pneumatic cylinder 15 in this manner, the bird damage protection device 21 in which the needle-shaped body 20 protrudes is continuously formed around the cylindrical portion 19 as shown in FIG. be able to.

Bird damage protector 2 formed as described above
By cutting out 1 at one location along the longitudinal direction, as shown in FIG.
1 can be attached to the electric wire 23. By attaching the bird damage protector 21 to the electric wire 23, birds such as crows and pigeons will not be stopped by the electric wires due to the large number of needle-like bodies 20 of the bird damage protector 21, and fecal pollution can be prevented.

[0020]

As described above, according to the apparatus for manufacturing a needle member made of synthetic resin of the present invention as described above, after forming a cylindrical molded body as in the prior art, a large number of needle-shaped bodies are formed in the cylindrical molded body. The cylindrical molded body and a large number of needle-shaped bodies can be integrally manufactured continuously without being planted on the outer peripheral surface. Therefore, the bird damage protector can be manufactured more efficiently than before.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an embodiment according to the present invention.

FIG. 2 is an explanatory diagram showing an engagement relationship between a first mold body 3 and a second mold body 4 when the cylinder is contracted.

FIG. 3 is an explanatory view showing an engagement relationship between a first mold body 3 and a second mold body 4 when a cylinder is extended.

FIG. 4 is an exploded perspective view of another embodiment according to the present invention.

FIG. 5 is a perspective view of a bird damage protector according to an embodiment.

FIG. 6 is a cross-sectional view when a bird damage protector is attached to an electric wire.

[Explanation of symbols]

 1 Synthetic resin needle member manufacturing device 2 Extruder 3 First mold 4 Second mold 5 Actuator

Claims (1)

[Claims] 1. An extrusion molding machine in which a desired mold is attached to an extrusion end so that a desired molded product can be formed. A first mold body formed internally with a concave-convex mold portion to be formed, while being connected to the extrusion end portion of the extrusion molding machine,
A second mold body having the same shape as the cylindrical mold part and the concave-convex mold part of the first mold body and having the same shape as the first mold body can be pivoted to the tip portion of the first mold body. An apparatus for manufacturing a member with a needle made of synthetic resin, characterized in that the second mold body is provided with an actuating device which is connected and further reciprocally rotates the second mold body by a predetermined angle.