KR101667489B1

KR101667489B1 - Master frame for molding

Info

Publication number: KR101667489B1
Application number: KR1020150083241A
Authority: KR
Inventors: 정병국; 김준한; 김갑기
Original assignee: 정병국; 김준한; 김갑기
Priority date: 2015-06-12
Filing date: 2015-06-12
Publication date: 2016-10-28

Abstract

The present invention relates to a master frame for a Styrofoam molding apparatus, wherein steam and coolant are inserted into the master frame in a state of having a molding frame mounted to mold Styrofoam. According to the present invention, steam or coolant can be injected by burying, in a cast, a fluid supply frame connected to a copper tube to form a flow path of steam or coolant, and by connecting the fluid supply frame a rectangular form to allow a horizontal tubular body and a vertical tubular body, which are formed with a copper tube, to be arranged along the outer side of the cast, and by providing the horizontal tubular body at the upper end with a supply tubular body for supplying a fluid. By making a spray hole forward to allow the fluid supply frame to penetrate the cast and the copper tube while being supported in a state of being buried in the cast by a fixing clip, steam or coolant supplied to the supply tubular body can be sprayed in the high pressure while the copper tube is buried, in a state that the copper tube forming the flow path of the fluid supply frame is not exposed to the outside thereof at all, thereby preventing the flow path from being damaged by external shocks. Also, by providing the spray hole precisely in the center in a state that the flow path is buried, steam or coolant can be sprayed in the high pressure without making the flow path move.

Description

MASTER FRAME FOR STEELFOAM FORMING APPARATUS AND MASTER FRAME FORMOLDING METHOD OF THE STOCHROME FORMING APPARATUS

The present invention relates to a master frame of a styrofoam forming apparatus for injecting steam and cooling water in the state that a mold frame is mounted for forming a styrofoam, Stable steam discharge and cooling water discharge are achieved.

Generally, styrofoam molding is performed by injecting steam and cooling water when molding, unlike other plastic molding. In order to produce a molded article using the styrofoam molding apparatus, first, the styrofoam raw material is put into a molding apparatus, The styrofoam raw material is melted using the steam of the molten glass, the cooling water is injected into the formed molten material to cool the molten material, and the molten material is discharged and dried.

Accordingly, the styrofoam molding apparatus includes a master frame for injecting raw materials and injecting steam and cooling water in a state in which the mold is mounted. The master frame includes a stationary mold fixedly installed in a molding apparatus and a movable mold .

However, the surroundings of the master frame are very complicated because a tube for supplying the raw material and a tube for injecting the steam and the cooling water are mixedly installed.

Particularly, a steam pipe and a cooling water pipe are provided on the inner side of the master frame so that steam and cooling water are injected into the mold. Since the steam pipe and the cooling water pipe are exposed, the mold replacement operation is very inconvenient and there is a high risk of breakage .

That is, since the mold mounted on the master frame uses various types of molds depending on the shape of the styrofoam to be formed, it is changed and installed from time to time. In this process, when the operator removes the mold from the master frame using the tool, The work is very troublesome because the pipe or the cooling water pipe is interfered with, and in the process, the pipe or the tool hits the steam pipe and the cooling water pipe frequently, and the pipe is broken by the impact frequently.

Recently, as disclosed in Patent No. 10-0884876 (Moving Frame for Styrofoam Molding Machine), a structure in which breakage of a cooling pipe is prevented by disposing a protection plate having a height higher than a cooling pipe between cooling pipes is proposed.

However, the structure in which the protection plate is mounted is very complicated to manufacture because it is necessary to construct each frame after the master frame is manufactured, and to attach the protection plate so as to fit the position again. Also, Even if the exposed part is minimized, if the corner of the mold hits the cooling pipe, the pipe still breaks, and if the pipe is broken in such a buried state, the maintenance is difficult.

KR 100977132 B1 KR 100884876 B1

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to prevent the flow path of the steam generated in the master frame from being exposed to the outside, So that steam or cooling water is sprayed at a high pressure without flowing the flow path at all.

In order to accomplish the above object, the present invention provides a fluid supply frame, which is connected to a copper pipe so as to constitute a flow path of steam or cooling water, to be embedded in the casting, and the fluid supply frame includes a horizontal pipe body and a vertical pipe body, And a supply tube for supplying fluid to the upper horizontal tubular body is provided so that steam or cooling water is injected. The fluid supply frame is supported in a state of being embedded in the casting by the fixing clip The injection port is pierced forward so as to pass through the casting and the copper pipe so that the steam or the cooling water supplied to the supply pipe body is injected at a high pressure in a state in which the copper pipe is buried in a state that the copper pipe constituting the flow path of the fluid supply frame is not exposed to the outside .

According to the master frame of the styrofoam molding apparatus of the present invention, since the passage through which the steam and the cooling water are discharged is not exposed to the outside, the aesthetic appearance is enhanced and the passage damage can be prevented during the operation.

Further, since steam is injected stably when the steam or cooling water is injected in the state where the flow path is filled, steam or cooling water can be discharged at a high pressure with little pressure loss and no flow at all.

In addition, since durability is improved and maintenance is hardly required, it is possible to use for a long period of time, and it is possible to prevent the productivity from being deteriorated due to work interruption.

1 is a schematic view showing a structure of a styrofoam molding apparatus according to the present invention;
2 is an exploded perspective view showing a structure in which a mold is mounted on a master frame according to the present invention.
3 is a cross-sectional structural view showing the structure of the master frame of the present invention
Figs. 4A to 4F are diagrams showing steps of manufacturing the master frame of the present invention
5 is a side sectional view showing the fluid injection structure of the present invention
5 is a front view showing another embodiment of the fluid supply frame of the present invention
7 is a side sectional view of a structure in which the injection nozzle is mounted on the injection hole of the present invention
Figure 8 is a perspective view of the spray nozzle of Figure 6;
Fig. 9 is a block diagram showing a manufacturing step of a master frame according to the present invention

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1, the styrofoam molding apparatus 1 includes a fixing table 2 on which a stationary mold 2a is mounted and a transfer table 3 on which a movable mold 3a corresponding to the stationary mold 2a is mounted So that the styrofoam material is supplied from the raw material supply part 4 and the stationary mold 2a and the moving mold 3a are engaged with each other to discharge the steam so that the styrofoam molding is performed by heat fusion and then the cooling water is discharged to cool the molding And can be mounted on the fixing frame 2 and the transfer frame 3 to the master frame M of the present invention so as to mount the respective fixed molds 2a and the movable molds 3a on the molding apparatus.

The structure of the master frame M of the present invention comprises a fluid supply frame 10 connected to a copper pipe so as to constitute a flow path of steam or cooling water as shown in FIG. 2, a fluid supply frame 10 10 may be embedded in the casting 20.

The fluid supply frame 10 is provided with a flow path for injecting steam or cooling water supplied to the molding die 2a or the movable mold 3a while the master frame M is mounted on the molding apparatus. The supply frame 10 is connected to the pipe body.

The structure of the fluid supply frame 10 may be constituted by bending or connecting the horizontal tubular body 11 and the vertical tubular body 12 made of copper tubes as shown in FIG. .

The horizontal tubular body 11 disposed at the uppermost one of the tubular bodies constituting the fluid supplying frame 10 is provided with a supply tube 13 for supplying fluid and can be taken out to the outside of the master frame M, So that the steam or the cooling water can be supplied to the fluid supply frame 10 embedded in the casting 20 by using the supply tube 13 as the supply tube 13.

At this time, the tube constituting the fluid supply frame 10 may be formed of an aluminum tube or the like, but it is preferable that the tube is made of a copper tube for ease of processing and production cost.

In addition, the fluid supply frame 10 may be provided with a fixing clip 30 for fixing the position of the fluid supply frame 10 without movement in the flask when the mold is molded, The outer circumferences on both sides of the surface of the copper pipe can be supported in a state where the copper pipe is embedded in the casting 20 with the clip 30.

In the state where the fluid supply frame 10 is embedded in the casting 20, the injection port 40 is formed on the front surface of the casting so that steam and cooling water can be sprayed corresponding to the portion where the stationary mold 2a and the moving mold 3a are mounted. May be provided.

The injection port 40 is formed by drilling a hole penetrating the front surface of the casting 20 and the copper tube constituting the fluid supply frame 10 so that steam and cooling water supplied along the flow path of the fluid supply frame 10 are injected into the injection port 40, So that the styrofoam can be formed by thermal fusion or cooling can be performed by spraying the cooling water.

In this way, steam or cooling water supplied to the supply pipe (13) is sprayed while the copper pipe is buried, so that no leak or pressure leaks out, and steam or cooling water is supplied at a high pressure It is possible to discharge the steam or the cooling water to the high pressure without pressure loss because the flow is not generated at all.

The vertical frame 12 is disposed on both sides of the fluid supply frame 10 and two or more horizontal tubular bodies 11 suspending the vertical tubular body 12 are disposed so as to correspond to the shape of the forming mold It is possible to make an even injection without any effect.

The plurality of horizontal tube bodies 11 arranged in the fluid supply frame 10 can arrange the horizontal tube bodies at regular intervals, but as shown in FIG. 6, the interval between the horizontal tube bodies is relatively wider So that the cooling efficiency of the entire mold can be made uniform.

In other words, since the mold mounted on the master frame M and the master frame is mounted uprightly, when the cooling water is injected on the structure, the cooling water injected falls down to the lower part. Therefore, the time for the cooling water to stay in the mold is shorter than the lower part of the mold In order to compensate for this, when the horizontal tubular body 11 of the fluid supply frame 10 is arranged in a plurality of rows, a larger amount of cooling water may be injected by narrowing the interval between the horizontal tubular bodies above the horizontal tubular body 11. [

The same effect can be obtained by adjusting the interval between the horizontal pipe body disposed at the upper part and the injection port 40 of the horizontal pipe body disposed at the lower part.

In the meantime, the jetting nozzle 41 for controlling the jetting angle and the jetting range can be mounted on the jetting port 40 punctured forward of the fluid supply frame 10 without damaging the jetting port.

The injection nozzle 41 is preferably formed by forming a thread on the injection port 40 so as to be easily assembled in a spiral manner. By forming the injection nozzle 41 in this manner, the injection nozzle 41 is formed on the inner surface of the master frame M Even when an impact occurs, a blow is generated only in the injection nozzle 41, and the injection port 40 can be prevented from being directly blown.

Accordingly, even if the injection nozzle 41 is damaged due to impact in the course of operation, the operation can be resumed by simply replacing the injection nozzle 41, so that the operation is stopped or a separate maintenance work is not required.

7, the injection nozzle 41 is formed with an inlet 41a disposed eccentrically inside the injection nozzle 41 and an outlet 41b located in the center of the injection nozzle 41 The fluid is injected through the inlet 41a when the fluid is injected and then injected into the outlet 41b located at the center. When the steam or the cooling water is injected, the fluid is injected in a screw manner, Can be further expanded.

The injection nozzle 41 can be configured such that the injection distance and the injection angle are made different from each other by making the diameter of the inlet 41a and the diameter of the outlet 41b different or different from each other. The spraying range of steam and cooling water can be further enlarged within the master frame.

Hereinafter, a manufacturing process of the master frame of the styrofoam forming apparatus will be described in detail.

The manufacturing process of the master frame of the present invention includes a step S100 of providing a fluid supply frame having flow paths of steam or cooling water by connecting the copper pipes as shown in Figs. 4A to 4F and 9, A step S200 of fixing the fluid supply frame to the flask using a plurality of fixing clips supporting the copper pipe, placing the flask and closing the flask and injecting the molten casting solution into the flask (S400) of removing the casting mold after releasing the casting mold after the casting solution is cured, a step S500 of exposing the fixing clip supporting the both sides of the copper pipe by milling the surface of the casting product (S500) And a step (S600) of puncturing a plurality of injection openings in the copper pipe by observing the position where the copper pipe of the fluid supply frame is embedded with the fixing clip exposed by the finishing process.

First, a step S100 of providing a fluid supply frame having a flow path of steam or cooling water by connecting the copper pipes is performed by forming a fluid supply frame 10 into which a molding is inserted by being inserted into a flask before molding with molding The fluid supply frame 10 can be manufactured by bending or welding the copper tube.

That is, the horizontal pipe and the vertical pipe may be respectively welded to each other, or the horizontal pipe and the vertical pipe may be formed by bending the corners by using one copper pipe. When connecting the copper pipes to each other, The joint can be assembled for connection and the joint can be welded to the channel so that the channel is connected.

(S200) of fixing the fluid supply frame to the flask by using a plurality of fixing clips for positioning the fluid supply frame to the flask and supporting the copper pipe, the fluid supply frame (10) The copper tube can be fixed to the flask by using the fixing clip 30 which surrounds the copper tube by inserting the copper tube into the flask so that casting can be performed.

The stationary clip 30 is fixed to the flask with the copper pipe wrapped around it and the stationary clip 30 is fixed by locating the stationary clip at each position where the nozzle is to be placed in the copper pipe It is preferable that the position where the copper tube is embedded at the position of the fixing clip 30 when the nozzle is punctured in a step to be described later is easily measured and the nozzle can be punctured in the center.

Then, the fluid supply frame 10 fixed to the flask is closed by closing the flask and injecting the molten casting solution into the flask (S300). After the casting solution is cured, The fluid supply frame 10 is embedded in the casting 20 through a step S400.

Since the surface of the casting 20 formed by casting is very rough, the surface of the casting 20 is subjected to post-machining (S500) to expose the fixing clip supporting both sides of the copper tube by milling the surface of the casting as described above. .

That is, the casting product 20 is also filled with the fixing clip 30 for supporting the fluid supply frame 10, and the resultant product of the casting product is produced. The surface of the casting product is milled to form a fixing clip Can be exposed.

At this time, in the process of exposing the fixing clip 30 to a post-process, a milling process should be performed to a depth such that the copper tube of the fluid supply frame 10 is not exposed, and only a part of the fixing clip 30 is post- The supporting part remains.

The injection port (40) is pierced through the step (S600) of puncturing the plurality of injection holes in the copper pipe by measuring the position where the copper pipe of the fluid supply frame is embedded with the fixing clip exposed by the post-process.

That is, since the casting is performed in a state where the fluid supply frame 10 is embedded in the casting 20, the position of the copper pipe can not be visually confirmed after the molding is completed. However, the front surface of the casting 20 supporting the copper pipe A part of the fixing clip 30 is machined while the milling process is performed to expose a portion supporting both sides of the copper tube to the entire surface, thereby accurately measuring the position of the copper tube. In forming the jetting port 40, It is possible to make a jet hole by puncturing.

M: Master frame
10: fluid supply frame 11: horizontal tube
12: vertical tube 13: supply tube
20: Castings
30: Fixing clip
40: jet nozzle 41: jet nozzle
41a: Inlet port 41b: Outlet port

Claims

A fluid supply frame 10 connected to a copper pipe so as to constitute a flow path of steam or cooling water is embedded in the casting 20 and the fluid supply frame 10 includes a horizontal pipe body 11 and a vertical pipe body 12, And the upper horizontal tubular body is provided with a supply tube 13 for supplying fluid, and steam or cooling water is injected, and the fluid supply frame 10 is fixed by a fixing clip 30 The injection port 40 is punched forward so as to pass through the casting and the copper pipe while being buried in the casting so that the copper pipe constituting the flow path of the fluid supply frame 10 is supplied to the supply pipe 13 without being exposed to the outside at all A master frame of a Styrofoam forming apparatus in which steam or cooling water is injected at a high pressure in a state where a copper tube is embedded.

The vertical fluid pipe (12) according to claim 1, wherein the vertical fluid pipe (12) is disposed on both sides of the fluid supply frame (10) embedded in the casting (20) so that even injection is performed irrespective of the shape of the molding metal, Wherein a plurality of horizontal tube bodies (11) are connected to each other in a suspended manner to spray steam or cooling water.

The master frame of a styrofoam forming device according to claim 2, wherein a plurality of horizontal tubular bodies (11) arranged in the fluid supply frame (10) are spaced apart from each other by a relatively large interval between horizontal tubular bodies.

4. The apparatus according to any one of claims 1 to 3, wherein the injection port (40) formed in the front of the fluid supply frame (10) is provided with an injection nozzle (41) for controlling the injection angle and the injection range without damaging the injection port, Wherein the styrofoam forming device is mounted on the main frame.

[5] The apparatus according to claim 4, wherein the injection nozzle (41) injects the fluid into the inlet (41a) positioned eccentrically and injects the fluid into the outlet (41b) located in the center so that the fluid is injected in a screw- Characterized in that the master frame comprises a screw type nozzle.

A step (S100) of connecting a copper pipe and providing a fluid supply frame having a flow path of steam or cooling water;
(S200) of fixing the fluid supply frame to the flask by using a plurality of fixing clips for positioning the fluid supply frame in the flask and supporting the copper pipe;
Closing the flask and injecting molten casting solution into the flask (S300);
Removing the casting mold after removing the casting mold after the casting solution is cured (S400);
(S500) of milling the surface of the casting to expose the fixing clip supporting both sides of the copper tube;
A step (S600) of puncturing a plurality of injection holes in the copper pipe by measuring a position where the copper pipe of the fluid supply frame is embedded with the fixing clip exposed by the post-processing;
Wherein the styrofoam forming device is a styrofoam forming device.

The method as claimed in claim 6, wherein the step (S100) of providing a fluid supply frame including the flow channels of steam or cooling water by connecting the copper pipes,
Characterized in that two or more horizontal tubes (11) are arranged on both sides of the vertical tube body (12) and the vertical tube body (12) is connected in a suspended manner to provide steam or cooling water flow paths. Production method.