Apparatus for injection molding synthetic resin product

专利摘要:
The present invention relates to an automatic resin injection device for synthetic resin, and more particularly, is expanded and contracted by an expansion taper that is linearly reciprocated by a cylinder, and at the same time automatically releases a groove in the injection molding of the inside and the pole of the synthetic resin product. Synthetic resin product automatic injection device (1) to form a connecting pipe integrally, the linear tapered rod 110 reciprocating linearly reciprocating by the transfer reciprocating means 100 and; An inner mold (200) having the same inclination angle as the top and bottom, left and right sides of the tapered rod (110) and contracting or expanding each other in a pair by the tapered rod (110); Limiting means (300) for discharging the tapered rod (110) to a predetermined length from the inner mold (200); An upper and lower separable outer mold 400 surrounding the outer circumferential surface of the inner mold 200 and having an injection space S; A support (500) for supporting the outer mold (400); Consists of adjusting means 600 for adjusting the contracting force of the inner mold (200).
公开号:KR20000049311A
申请号:KR1019990028291
申请日:1999-07-13
公开日:2000-08-05
发明作者:원종록
申请人:원성환；미래화학 주식회사；
IPC主号:

专利说明:

Automatic resin injection device for synthetic resin products {APPARATUS FOR INJECTION MOLDING SYNTHETIC RESIN PRODUCT}
The present invention relates to an automatic resin injection device for synthetic resin, and more particularly, is expanded and contracted by an expansion taper that is linearly reciprocated by a cylinder, and at the same time automatically releases a groove in the injection molding of the inside and the pole of the synthetic resin product. The present invention relates to an automatic resin injection device for molding a connecting pipe integrally.
In general, the connection extension tube 10 is composed of an opening 11 of a large diameter and an opening 12 of a small diameter, and in order to connect the connection pipe 20 to one end of the opening 12 of the small diameter, As shown in FIG. 1, the method of connecting the connecting pipe 20 by inserting the connecting pipe 20 in a slightly molten state by heating the small diameter opening 12 of the connecting extension tube 10 with a torch or the like is most commonly used. to be.
However, in this method, the connection part is not firm, and when the other pipe is connected to the opening 11 of the large diameter of the connection extension pipe 10 or the earth pipe is inserted, the sealing material is inserted to prevent leakage. In this case, in order to insert the sealing material, it was necessary to dig a seam groove (advanced chain line in FIG. 1) into the opening 11 having a large diameter artificially.
Therefore, by digging the sealing groove by hand as described above, there is a problem in that the economic efficiency is lowered because the work time and the labor and labor of the worker are much increased.
The present invention is to solve the above problems, it is expanded and contracted by the expansion taper that is reciprocating linearly by the cylinder to automatically release the groove at the time of injection molding the inside, the pole of the synthetic resin product and at the same time the connection pipe The present invention provides an automatic resin injection device for molding a molded product.
In order to achieve the above object, the present invention is a linear tapered rod by a linear reciprocating motion by the transfer reciprocating means; An inner mold having the same inclination angle as the upper and lower sides and the left and right sides of the tapered rod, each of which contracts or expands in a pair by the tapered rod; Limiting means for discharging the tapered rod to a predetermined length from the inner mold; Upper and lower separation type outer mold having an injection space surrounding the outer peripheral surface of the inner mold; A support for supporting the outer mold; Characterized in that the adjustment means for adjusting the contracting force of the inner mold.
In addition, the inner mold is characterized by consisting of the first and second molds having a ring-shaped protrusion on the outer end and divided into upper and lower, and the third and fourth molds divided into left and right.
1 is a view showing a state before the connection of the conventional expansion tube and pipe.
Figure 2 is a cross-sectional view showing the present invention synthetic resin product automatic injection device.
Figure 3 is a perspective view showing a part of the present invention the inner mold and the outer mold.
4 is a view showing a relationship between the present invention the inner mold and the outer mold and the adjusting means.
Figure 5 is a view showing a state before injection of the synthetic resin product of the present invention.
6a and 6b is a view showing a state after injection of the synthetic resin product of the present invention.
Figure 7 is a cross-sectional view of the product injected by the present invention synthetic resin product automatic injection device.
<Description of the code | symbol about the principal part of drawing>
1: automatic injection device 100: round trip transportation means
110: tapered rod 200: internal mold
201: protrusion 210: first mold
211,221 guide rail 220: second mold
230: third mold 240: fourth mold
300: limiting means 400: external mold
500: support 600: control means
610: spring 620: adjusting bolt
630: adjusting piece
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
First, Figure 2 is an invention synthetic resin product automatic injection device (1), the linear tapered rod 110 reciprocating linearly reciprocating by the transfer reciprocating means (100) and; An inner mold (200) having the same inclination angle as the top and bottom, left and right sides of the tapered rod (110) and contracting or expanding each other in a pair by the tapered rod (110); Limiting means (300) for discharging the tapered rod (110) to a predetermined length from the inner mold (200); An upper and lower separable outer mold 400 surrounding the outer circumferential surface of the inner mold 200 and having an injection space S; A support (500) for supporting the outer mold (400); Technical features are given to the adjusting means 600 for adjusting the contracting force of the inner mold 200.
Meanwhile, as shown in FIG. 3, the inner mold 200 has a ring-shaped protrusion 201 at an outer end thereof and is divided into upper and lower first and second molds 210 and 220 and left and right. It consists of the third and fourth molds 230 and 240 divided into right.
The transfer reciprocating means 100 is composed of a cylinder and a piston rod that is operated by pneumatic or hydraulic pressure (not shown) and a rectangular tapered rod 110 is installed at one end of the piston rod.
At this time, the upper and lower surfaces of the tapered rod 110 to linearly move along the guide rails 211 and 221 formed inside the first and second molds 210 and 220 shown in FIG. 3 or 4. Guide grooves 111 and 112 are formed therein, and a restricting means 300 for taking out the first and second molds 210 and 220 by a predetermined distance is installed in the middle portion thereof.
That is, the limiting means 300 is a locking groove 301 formed to a predetermined depth in the guide rails 211, 221 of the first and second molds 210, 220, as shown in Figure 2, It is composed of a projection 302 formed in the tapered rod 110 to be engaged with the locking groove 301.
As shown in FIG. 4, the adjusting means 600 includes a spring 610 installed between the support 500 and the outer mold 400, and an adjusting bolt for adjusting the tension of the spring 610. 620, and an adjusting piece 630 for abutting the tip of the inner mold 200 while abutting on one end of the adjusting bolt 620.
As shown in the enlarged view of the main portion of the adjustment piece 630, it is formed in a substantially 凸 shape.
Therefore, the synthetic resin product automatic injection device configured as described above, as shown in Figure 5, in order to form the connection pipe 20 integrally with the connection extension tube 10, the connection extension tube 10 to the internal mold ( It is inserted into the space (S) between the 200 and the outer mold 400, and the connection pipe 20 slightly molten by the preheater (not shown) is inserted into the rear end of the connection expansion tube (10).
That is, the connection pipe 20 is fitted to the rear end of the first to fourth mold 210, 220, 230, 240 in close contact.
Next, as the transfer reciprocating means 100 advances in the direction of arrow A in the above state, the first to fourth molds 210, 220, 230, and 240 are extended to extend the inside of the extension tube 10. The outer diameter of the connection pipe 20 installed at one end and the inner diameter of the rear end of the extension tube 10 at the same time as the side and the surface contact is compressed to form a single body.
In this case, as shown in FIG. 7, the front end of the extension tube 10 is formed by a ring-shaped protrusion 201 formed outside of the first to fourth molds 210, 220, 230, and 240. The ring-shaped sealing groove 13 is integrally formed.
In addition, the conveying reciprocating means 100 is a guide rail (211) (221) of the limiting means 300, that is, the first and second molds 210, 220 of the figure in the opposite direction of the arrow of FIG. 6a or 6b as the projection 302 of the tapered rod 110 is continuously engaged with the engaging groove 301 is formed to a predetermined depth in the first mold 210, ) And the second mold 220 exits to the front of the third and fourth molds 230 and 240, and at the same time, the third and fourth molds 230 and 240 become the first and second molds ( The back end faces 210 and 220 abut, and the first and second molds 210 and 220 likewise touch each other.
Therefore, after separating the outer mold 400 from each other, the synthetic resin product as shown in Figure 7 is removed.
In addition, by repeating the operation as described above, it is possible to easily inject the required molding and bonding of the synthetic resin product.
As described above, the present invention can be expanded and contracted by an expansion taper which is linearly reciprocated by a cylinder, thereby automatically releasing the grooves in the injection molding of the inside and the pole of the synthetic resin product and simultaneously forming the connecting pipe integrally. will be.

权利要求:
Claims (2)
[1" claim-type="Currently amended] A rectangular tapered rod having a linear reciprocating motion by means of a reciprocating transfer means
An inner mold having the same inclination angle as the upper and lower sides and the left and right sides of the tapered rod, each of which contracts or expands in a pair by the tapered rod;
Limiting means for discharging the tapered rod to a predetermined length from the inner mold;
Upper and lower separation type outer mold having an injection space surrounding the outer peripheral surface of the inner mold;
A support for supporting the outer mold;
Synthetic resin product automatic injection device, characterized in that the adjustment means for adjusting the shrinkage of the inner mold.
[2" claim-type="Currently amended] According to claim 1, wherein the inner mold has a ring-shaped protrusion on the outer end of the synthetic resin, characterized in that the first and second molds divided into upper and lower, and the third and fourth molds divided into left and right Product automatic injection device.

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同族专利:

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公开号 | 公开日

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KR100320569B1|2002-01-16|

引用文献:

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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法律状态:
1999-07-13|Application filed by 원성환, 미래화학 주식회사

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1999-07-13|Priority to KR1019990028291A

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2000-08-05|Publication of KR20000049311A

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2002-01-16|Application granted

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2002-01-16|Publication of KR100320569B1

优先权:

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申请号 | 申请日 | 专利标题

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KR1019990028291A|KR100320569B1|1999-07-13|1999-07-13|Apparatus for injection molding synthetic resin product|