KR20190105462A - The master frame of an improved styrofoam molding apparatus so that molding and cooling conditions are not changed - Google Patents

Abstract

The present invention relates to a Styrofoam forming apparatus master frame for injecting steam and cooling water in a state in which a mold is mounted for Styrofoam molding. The Styrofoam forming apparatus master frame has a flow path hole for supplying steam or cooling water formed through horizontal bars of the upper and lower and vertical bars of the left and right sides of a rectangular frame constituting the master frame and installs a reinforcement means consisting of a tubular body formed in communication with an injection hole inside the flow path hole to achieve more efficient high-pressure injection. In addition, through a plurality of injection holes consisting of small holes for injecting steam and cooling water formed into the master frame, the injection hole is not damaged even in the high-pressure injection of steam and cooling water.

Description

The master frame of an improved styrofoam molding apparatus so that molding and cooling conditions are not changed}

The present invention relates to a styrofoam molding apparatus master frame for injecting steam and cooling water in a state in which a mold frame is mounted for styrofoam molding, and in particular, to improve the spray structure of steam and cooling water sprayed at a high pressure through the master frame to prevent damage. It prevents the product defects during the styrofoam molding by preventing the cooling and cooling conditions.

In general, a styrofoam forming apparatus for molding styrofoam is composed of a mold frame for molding styrofoam of various shapes and a master frame for injecting styrofoam raw material into the mold frame and spraying steam and cooling water. It consists of a stationary mold that is fixedly installed and a moving mold that is moved to open and close the stationary mold, and then injecting the styrofoam raw material into the molding apparatus, and then welding the raw material injected with high temperature steam and spraying the coolant onto the welded raw material for cooling. After it has been removed from the molding apparatus and dried to complete.

In addition, it is possible to manufacture styrofoam of various shapes with a single molding apparatus by replacing only the mold in the molding apparatus.

However, in order to supply raw materials to the master frame and to inject steam and cooling water, several pipes are mixed and installed, and the molding apparatus is very complicated, and the styrofoam raw material for welding is formed in the mold frame inside the master frame. Various pipes are sprayed to the outside to spray steam and cooling water to cool the molded styrofoam. Therefore, when replacing molds to manufacture various shapes of styrofoam, interference occurs due to structural problems. There was a problem, and the problem that the damage caused by the impact of the impact of the exposed pipe during the mold replacement work often occurred. there was.

Therefore, according to the prior art disclosed in Korean Patent No. 10-0884876, it is proposed to prevent the breakage of the cooling pipe by separately installing a protective plate formed higher than the cooling pipe between the cooling pipes.

However, when the protection plate is installed, a separate protection plate needs to be assembled to the pipe already installed in the master frame, which causes inconvenience in manufacturing and increases the cost of parts due to the additional installation of the protection plate. It became.

In addition, in the process of installing the protective plate, the collision with the pipe is generated, as well as the problem that the damage of the pipe, as well as repairing the damaged pipe by the installed protective plate, rather than the obstacles, there was a problem that is very difficult to repair.

Therefore, in order to solve the conventional problems, as disclosed in Korean Patent Application No. 20-0478686, filed and registered by the applicant of the present invention, the master frame is a rectangular frame assembled with horizontal bars arranged at the top and bottom and vertical bars arranged at the left and right. And forming a flow path hole penetrating in the longitudinal direction of the horizontal bar and the vertical bar of the rectangular frame so as not to be exposed to the outside, and supplying and discharging parts for supplying and discharging steam and cooling water to the outside of the rectangular frame. The inner surface of the rectangular frame is formed with a plurality of injection holes in communication with the flow path, the steam and cooling water supplied through the supply portion is discharged through the injection hole through the injection hole through the injection hole is discharged to the discharge port to form the styrofoam molding It is possible to simplify the forming equipment for steam and cooling water injection Body work was also yitorok for.

However, when the steam and cooling water supplied with the problem of the master frame are injected at high pressure into the mold through the injection hole formed through the small hole, the injection hole is enlarged by the high pressure injection so that the injection is not performed properly. As the cooling conditions of the molded styrofoam were changed, there was a problem of product defects during the manufacturing process. In order to maintain the same cooling conditions, the square frame of the master frame had to be replaced, which required time and cost for repair and replacement. There is a problem that occurs, it was necessary to improve the molding apparatus.

Therefore, the present invention is to solve the conventional problems, by improving the flow path and the injection structure so that the cooling conditions are not changed due to breakage of the injection hole by the steam and the cooling water injected at high pressure for cooling the styrofoam for molding It is an object of the present invention to prevent a product defect of the molded styrofoam, and to prevent the maintenance cost caused by replacement of the master frame due to damage of the injection port.

In order to achieve the above object, in the present invention, the upper and lower horizontal bars consisting of a rectangular frame constituting the master frame and the passage hole for supplying steam or cooling water formed in the longitudinal direction of the vertical bar of the left and right, and the inside of the passage hole A reinforcing means composed of a tubular body formed in communication with the injection hole is installed at a length corresponding to the flow path to achieve a more efficient high pressure injection, and through a plurality of injection holes including small holes for injecting steam and cooling water formed inside the master frame. High pressure injection of steam and coolant does not damage the nozzle.

Therefore, according to the present invention, the master frame can be manufactured in a simplified manner as in the past, while the flow paths through which the steam and cooling water are supplied are reinforced with reinforcing means, so that the molding and cooling conditions can be improved by high-efficiency high pressure injection, The spraying is performed to prevent the breakage of the injection hole, so that the cooling conditions for the molding are kept constant so that the defect of the molded product does not occur. As a result, the time-consuming and cost-savings due to replacement or repair are prevented. At the same time, it is possible to mass-produce through continuous production operations, providing economic synergy.

1 is a schematic view showing the structure of a styrofoam forming apparatus of the present invention.
Figure 2 is a perspective view showing a structure mounted on a mold in the master frame of the present invention.
Figure 3 is an exploded perspective view showing a state in which the reinforcing means is installed in the structure and the flow path of the master frame of the present invention.
Figure 4 is a cross-sectional view of the reinforcement means is installed in the passage hole of the master frame of the present invention.
Figure 5 is a front sectional view of the master frame of the present invention.
Figure 6 and Figure 7 is a cross-sectional view showing a structure in which steam or cooling water is injected through the passage hole is reinforced with the injection port to the reinforcement means of the master frame of the present invention.
Figure 8 is a perspective view showing a flow path formed with the injection hole in the horizontal bar and the vertical bar of the master frame of the present invention.
Figure 9 is a cross-sectional view of the injection nozzle is mounted on the injection hole for sealing while preventing the reinforcing means installed in the flow path of the present invention is not rotated.
10 is a cross-sectional view of the injection nozzle of the present invention in a hermetically coupled state by packing.

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

As shown in Fig. 1 and Fig. 2, the styrofoam forming apparatus 1 of the present invention is a movable mold corresponding to the fixed base 3 and the fixed mold 2a on which the fixed mold 2a of the mold 2 is mounted. (2b) is equipped with a transfer table (4) is provided, the styrofoam raw material is supplied from the raw material supply unit 5, the fixed mold (2a) and the moving mold (2b) is engaged with each other to release the steam to form styrofoam by thermal fusion After the cooling water is discharged, the molding is cooled, and the fixed molds 2a and the movable molds 2b are mounted on the master frame M of the fixed base 3 and the transfer table 4. .

The master frame (M) is formed in the longitudinal direction is formed in both the horizontal bar 110 and the horizontal bar 110 and the horizontal bar 110 is spaced apart from the upper and lower ends formed in the lengthwise through hole (200) It consists of a rectangular frame 100 consisting of a vertical bar 120 formed with a passage hole 200 penetrated by a length, the length corresponding to each of the passage hole 200 formed in the horizontal bar 110 and the vertical bar 120 The plurality of injection holes 300 and the reinforcing means for injecting steam and cooling water supplied to the inner surface of the rectangular frame 100 to the mold frame 2 while the reinforcing means 400 made of tubular body is installed. It is formed to be in communication with the 400 spray.

Therefore, after the styrofoam raw material is fused by the steam injected through the injection hole 300 supplied to the passage hole 200, the molding is performed, or after the styrofoam molding is performed, the cooling water is injected at a high pressure to cool the molding. In this case, when the steam injection for the molding of the styrofoam or the cooling water injection for cooling is made to the injection port 300 is to prevent the damage by preventing the wear by the reinforcing means 400 formed inside the passage hole 200, and By providing a constant injection pressure at all times to maintain the molding conditions and cooling conditions will be able to produce the molded styrofoam without defects.

In addition, the inner diameter of the passage hole 200 is reduced by the thickness of the reinforcing means 400 by the reinforcing means 400 installed inside the passage hole 200, and is supplied to the passage hole 200 through the steam. And as the pressure of the cooling water is increased, the injection pressure injected into the injection hole 300 is increased, and the injection is made evenly on the molded styrofoam as a whole.

In addition, the screw 410 is formed on the inner wall surface of the reinforcing means 400 in order to increase the injection pressure of the supplied steam and cooling water to induce a flow rate of the steam and cooling water quickly.

At this time, in order to supply and discharge steam and cooling water to the horizontal bar 110 and the vertical bar 120 of the square bar 100, the supply unit 101 is in communication with the flow path 200 in the square frame 100. ) And the discharge portion 102 is formed respectively.

At this time, the horizontal bar 110 and the vertical bar 120 of the rectangular frame 100 is made of a casting by extrusion molding so that the flow path 200 in the longitudinal direction can be integrally formed.

In addition, in order to assemble the horizontal bar 110 and the vertical bar 120 into a rectangular frame 100, both side ends of the horizontal bar 110 are welded to the corners of the upper and lower ends of the vertical bar 120 to be assembled. It is made to form a slope so that the left or right sides are engaged with each other, and because of this engagement is connected to the passage hole 200 formed in the horizontal bar 110 and the vertical bar 120, such a corner portion that is connected It will be assembled by welding for solid assembly while keeping the seal.

In addition, the perforated hole 112 is formed in the corner portion of the wall 111 of the horizontal bar 110, for a more robust assembly in the joint edge portion of the square frame 100, the perforated hole (vertical hole (120) The fastening hole 122 is formed in the wall 121 along the longitudinal direction at a position corresponding to the 112, and the fastening hole 122 of the vertical bar 120 is formed through the perforation hole 112 of the horizontal bar 110. By assembling the bolt (B) to the solid assembly is made, as well as to prevent the leakage of steam and cooling water supplied by the perforation hole 112 to provide a constant molding conditions and cooling conditions.

In addition, the packing part (P) is further provided as a part to which the bolt (B) is fastened to seal the steam and the coolant supplied through the supply part 101 to maintain a more improved sealing force to prevent leakage or leakage.

In addition, the flow paths 200 are formed on the wall 111 and 121 of the horizontal bar 110 and the vertical bar 120 by protruding surfaces 113 and 123 protruding to the inner side. While ensuring a space for the reinforcement of the horizontal bar 110 and the vertical bar 120 as a whole it will be able to prevent the bursting of the joint portion that the flow path 200 is connected.

In addition, the protruding surfaces 113 and 123 allow the injection hole 300 to have various angles to be formed in water, and can be formed in various arrangements to broadly extend the injection range of the injected steam and cooling water.

In addition, when the injection hole 300 is formed, the guide lines 114 and 124 may be formed on the surfaces of the protruding surfaces 113 and 123 to allow perforations at the correct positions.

Accordingly, the perforations of the injection hole 300 are not generated by the guide lines 114 and 124 on the protruding surfaces 113 and 123 that protrude curvedly, and thus the perforation is made at the correct position, thereby making the injection hole 300 the horizontal plane 110 due to the perforation. And it is possible to prevent the manufacturing failure of the vertical surface 120, it is to prevent distortion during molding of a certain length of extrusion or casting.

At this time, the reinforcing means 400 installed inside the flow path 200 of the horizontal bar 110 and the vertical bar 120 is preferably formed of a copper tube or sus tube having excellent strength without rust.

In the present invention, the reinforcing means 400 is described as a copper tube or a sustaining tube, but the material of the reinforcing means 400 does not limit the object of the present invention, and there is strength that does not cause rust and wear does not occur. Any material can be used.

At this time, the reinforcing means 400 is fixed to the reinforcing means 400 to prevent the injection port 300 is blocked while the reinforcing means 400 installed inside the flow path 200 of the horizontal bar 110 and the vertical bar 120 is rotated. It is preferable that the fixing means 500, and the fixing means 500 is fixed to the left and right sides of the horizontal bar 110 and the vertical bar 120 for the stable fixing of the reinforcing means 400, if the length is long In the center, the fixing means 500 may be further used.

At this time, the packing means (P) is provided at the part where the fixing means (500) is assembled so as to be sealed so as to prevent leakage such as leakage of steam and cooling water to the outside so that the molding and cooling conditions are kept constant. .

On the other hand, the injection hole 300 formed on the inner surface of the rectangular frame 100 is to be equipped with a separate injection nozzle 600 to enable the injection of steam and cooling water.

The injection nozzle 600 controls to prevent the rotation of the reinforcement means 400 while controlling the injection angle and the injection range of the steam and cooling water to be injected, and at the same time the flow path of the reinforcement means 400 and the inside of the reinforcement means 400 The steam and coolant injected between the gaps are sealed to prevent leakage.

To this end, the injection nozzle 600 is a screw tightening method by forming a tightening part 620 protruding with a screw thread downward while the stepped surface 630 is formed in the injection body 610 and the injection body 610 inside As simple as that will be made.

In addition, even if the injection nozzle 600 is damaged, such as damage to the injection nozzle 600 due to the impact in the styrofoam forming process or replacing the mold frame, the injection hole (300) does not cause any damage, it is only broken By simply replacing the injection nozzle 600, it is possible to proceed without the need for a separate maintenance work.

In addition, the stepped surface 630 of the injection nozzle 600 is provided with a packing ring 640 for sealing the assembly portion when assembled in the tightening method by the injection nozzle 600, the sealing is made by the tightening at the same time injection By adjusting the pressure it is possible to adjust the injection range and expansion of the steam or cooling water.

1: forming machine
2: mold 2a: stationary mold
2b: Moving mold 3: Fixture
4: transfer table 5: raw material supply part
M: Masterframe B: Bolt
P: packing body
100: square frame 110: horizontal bar
111, 121: wall 112: perforated hole
113,123: Extruded 114,124: Guidelines
120: vertical bar 122: fastening hole
200: Eurohole
300: nozzle
400: reinforcing means 410: screw
500: fixing means
600: jet nozzle 610: jet body
620: tightening portion 630: stepped surface
640: packing ring

Claims (5)

Square frame 100 composed of a horizontal bar 110 and a vertical bar 120 so that the flow path 200 is supplied to the styrofoam forming and cooling to be injected through the injection hole 300 and the flow paths 200 through which the cooling water passes. In the master frame (M) of the styrofoam forming apparatus (1) made of a simplified structure of the mold frame (2) is replaced easily and safely for molding various styrofoam,
The reinforcing means is installed in communication with the injection hole 300 inwardly of the passage hole 200 formed to penetrate in the longitudinal direction of the horizontal bar 110 and the vertical bar 120 of the rectangular frame 100. Styrofoam is improved so that the molding and cooling conditions are not changed, characterized in that the injection port 300 is prevented from being damaged by the steam and the coolant sprayed at high pressure by the 400, and at the same time, a strong high-pressure injection of the steam and the coolant is induced. Master frame of molding machine. The method of claim 1,
The reinforcing means 400 installed inside the passage hole 200 of the horizontal bar 110 and the vertical bar 120 is formed of a copper tube or sustain tube having excellent strength without rust and forming and cooling conditions. Master frame of Styrofoam forming machine, which is improved so as not to change. The method of claim 1,
The reinforcing means 400 installed inside the passage hole 200 is flowed to fix the reinforcing means 400 with the fixing means 500 so as not to block the injection hole 300 and at the same time a horizontal bar made of a rectangular frame 100 ( 110) and the master frame of the styrofoam forming apparatus is improved so as not to change the forming and cooling conditions characterized in that the assembly of the vertical bar (120). The method of claim 1,
An injection nozzle 600 is mounted to the injection hole 300 formed on the inner surface of the rectangular frame 100 to control the injection angle and the injection range, and to fix the injection hole 400 to prevent rotation of the reinforcement means 400. The master frame of the styrofoam forming apparatus is improved so that the molding and cooling conditions are not changed, characterized in that the sealing and steam is injected between the gap between the reinforcing means 400 and the inside so as not to leak. The method of claim 4, wherein
The injection nozzle 600 is composed of an injection body 610 and a tightening portion 620 protruding downward so that the stepped surface 630 is formed inwardly of the injection body 610, and the stepped surface 630. Forming and cooling characterized in that it is provided with a packing ring 640 is assembled in the tightening method of the tightening unit 620 to the injection hole 300 is sealed by tightening while the injection pressure is adjusted to control the injection range and expansion Master frame of Styrofoam forming machine, improved to keep the conditions unchanged.

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