KR19990086600A - Automated extraction block polymer insulator mold - Google Patents

Abstract

The present invention relates to an injection mold for manufacturing polymer insulators and to an internal core and a blowout part improvement. A square groove for inserting and fixing 10 is formed, and the core mold 10 has a second mold positioned between the first mold 11 positioned at the outermost side and the two first molds 11. It is composed of a (12), the first mold 11 is formed with a mounting groove 17 to which the take-out portion 13 is mounted, the mounting groove 17 through the take-out spring 14, the upper surface A take-out part 13 having semicircular grooves is formed in the insulator 1 so as to enter the shape portions of both ends of the insulator 1, and a clamp 15 is formed at an upper end of the take-out part, and the second mold has an insulator ( The groove is formed in the same shape as the asset of 1) and the bolt hole 16 is formed at the side, so that the desired number Using bolts characterized by forming a core mold (10).

Description

Automated extraction block polymer insulator mold

The present invention relates to an injection mold for producing polymer insulators and to improving internal cores and blowout parts.

The conventional polymer insulator manufacturing mold has the disadvantage that only the polymer insulator having one type of shape can be manufactured and that the mold must be redesigned when manufacturing the other polymer insulator. In addition, there was a hassle of having to take out the mold by hand when taking out the product after injection.

In the prior art, in the manufacture of polymer insulators, the molds need to be manufactured separately according to the lengths of polymer insulators, which depend on the heavy fouling type.

The present invention has been made in order to solve the above-described problems, as in the conventional mold, instead of making a separate mold according to the length of the polymer insulator, each of the various types of assembling block-shaped core molds in the mold body according to the length It is an object of the present invention to provide a polymer insulator mold having an auto-extractable block structure that can use a mold.

In order to achieve the above object, the present invention, in the polymer insulator mold, separated into an upper mold and a lower mold to form a square groove for inserting and fixing a core mold in the lower mold and the upper mold, the core mold is the maximum It consists of a first mold located on the outside and a second mold located between the two first molds, the first mold is formed with a mounting groove for mounting the ejection portion, the mounting groove via the ejection spring An ejection part having semicircular grooves formed on the upper surface thereof so as to enter the shape portions of both ends of the insulator; And a bolt hole is formed at the side, so that the core can be automatically drawn out using a bolt as many times as desired. It provides a polymer insulator mold of the lock structure.

1 is a perspective view showing a polymer insulator mold of the present invention.

Figure 2 is a perspective view showing a core mold of the present invention.

3 is a cross-sectional view taken along the line A-A of FIG.

FIG. 4 is a cross-sectional view of the spring of FIG. 3 in a compressed state. FIG.

<Brief description of symbols for the main parts of the drawings>

1: insulator 2: upper mold

3: lower mold 4: fixed protrusion

10 core mold 11: first mold

12: second mold 13: take out

14: ejection spring 15: clamp

16: bolt hole

Hereinafter, the configuration and operation of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a polymer insulator mold of the present invention, which is largely divided into an upper mold 2 and a lower mold 3. A fixed protrusion 4 is formed at the corner of the lower mold 3 to be inserted into and fixed to a groove (not shown) formed in the upper mold 2.

And the upper mold (2) and the lower mold (3) is formed with a square groove in which the core mold 10 can be installed, the core mold 10 is fixed to the square groove with a bolt.

The core mold 10 is well illustrated in FIG. 2, wherein the core mold 10 includes a first mold 11 positioned at the outermost side and a second mold 12 positioned between two first molds 11. It is composed of Two bolt holes 16 for fixing are formed in the first mold and the second mold, and bolts (not shown) are formed in the upper mold 2 and the lower mold 3 through the bolt holes 16. Fix it.

The first mold 11 is provided with a mounting groove 17 to which the ejection portion 13 is mounted, and the ejection spring 14 is installed in the mounting groove 17 and the ejection portion 13 is positioned thereon. Let's do it. So when the upper mold (2) is no pressing force by the insulator (1) is taken out by the force of the extraction spring (14).

A semicircular groove is formed in the upper surface of the outlet portion 13 so that the shape portions of both ends of the insulator 1 enter. And a clamp 15 is formed thereon that can be fixed to both ends.

The second mold to be located between the first mold 11 has a groove formed at the top thereof in the same shape as the asset of the insulator 1.

When the desired insulator length is determined in the mold as described above, the number of secondary molds 12 in the form of blocks in the mold is determined, assembled, and the pre-installed mold is preheated, and then the upper mold 2 is lifted up to open the lower mold ( The ejection part 13 at both ends protrudes by the ejection spring 14 from 3). Next, the rod of the insulator is placed on the front and rear ejection portions 13 and fixed with the clamp 15. After that, when the mold is closed, the ejection part is inserted into the lower mold 3 by the upper mold 2, and then injection is performed. The polymer insulator 1, which is completely cured after injection, is automatically taken out from the lower mold by the spring action of the ejection part when the mold is opened. After that, the worker lifts the insulator which is automatically taken out and the work is finished.

In the present invention, since the core mold inside the mold is assembled in a block form, it is possible to easily produce different types of polymer insulators according to the block assembly method, thereby eliminating the additional cost of re-mold design as in the conventional method. In addition, the mold is opened after the product is completely cured in the mold and at the same time the polymer insulator automatically springs up by the take-out spring has the effect of eliminating the complicated process by manual work.

Claims (1)

In the polymer insulator mold, separated into an upper mold (2) and a lower mold (3) to form a square groove for inserting and fixing the core mold (10) to the lower mold (3) and the upper mold (2), The core mold 10 includes a first mold 11 positioned at the outermost side and a second mold 12 positioned between the two first molds 11. A mounting groove 17 is provided to which the takeout part 13 is mounted, and the mounting groove 17 has a semicircular groove so that the shape portions of both ends of the insulator 1 enter the upper surface through the takeout spring 14. The take-out part 13 is provided, and the clamp 15 is formed at the upper end of the take-out part, and the second mold has a groove formed in the same shape as that of the insulator 1 in the upper part and a bolt at the side. Ball 16 is formed to form a core mold (10) using a bolt to the desired number of automatic Extractable block polymer insulator mold.