KR101614501B1

KR101614501B1 - Cooling system for extruders

Info

Publication number: KR101614501B1
Application number: KR1020160015111A
Authority: KR
Inventors: 유준봉; 박용완
Original assignee: 과연씨앤비(주)
Priority date: 2016-02-05
Filing date: 2016-02-05
Publication date: 2016-04-21

Abstract

The present invention relates to a method of cooling a flat plate extruded from a die by a first indirect cooling method using a heat exchange method through a cooling pipe through which water flows so that the flat plate can be cooled without direct contact with water, Thereby improving the workability and productivity, and it is also possible to shorten the working time by eliminating the need for wiping off the water, and it is a cooling device for a decorative plate extruder.

Description

{Cooling system for extruders}

The present invention relates to a cooling device for a decorative flat plate extruder, and more particularly to a cooling device for a decorative flat plate extruder which comprises a cooling pipe To a cooling device for a decorative plate extruder capable of cooling by a primary indirect cooling through a heat exchange system through a smoothing roller and by a secondary air cooling method through a smoothing roller and improving the smoothness through a smoothing roller.

Generally, an extruder refers to a device for extruding an extruded material to form a product, and is roughly divided into a screw type extruder using a screw and a non-screw type extruder not using a screw.

The non-screw type extruder includes an Elastic Melt extruder, a Hydro-dynamic extruder, a ram type continuous extruder, or a gear type extruder.

The hydro-dynamic extruder is an extruder using a fluid principle of a thrust shaft bearing type (kingsbury or michell type), and the hydrodynamic extruder is an extruder using the fluid principle of the kingsbury or michell type. The continuous extruder is an extruder in which the two rams are combined in a direction opposite to the digesting extruder, and two extrusion rams and barrels are used in parallel to form a single unit.

The gear type extruder uses the principle of the gear pump for oil conveyance as it is for an extruder. This is an extruder in which three helical gears meshed with each other are arranged vertically so that the extruded material is fed from above and fed downward.

Using such an extruder, a decorative flat plate (PS flat plate or decorative board) is extruded and the formed decorative flat plate is cooled. That is, the decorative flat plate extruded from the extruder is cooled while being prevented from being deformed.

However, in the past, in order to cool the plate to be extruded from the extruder, a direct cooling method in which the water stored in the water tank is contacted with the decorative plate is cooled by allowing the water to pass through the water storage tank.

As a problem caused by such a direct cooling method, there is an inconvenience that water must first be filled in the water tank, and there is an inconvenience that it is necessary to wipe the water because the decorative plate touches the water.

In addition, there is a problem in that the size of the water tank is required to be different depending on the size of the decorative plate, and the temperature variation of the water contained in the water tank is deep and it is difficult to maintain the smoothness of the decorative plate. That is, the decorative plate is deformed.

Particularly, there is a problem that a width of a product can not be changed in the past, and a post-process is required.

Korean Utility Model Registration No. 20-0279305, a vacuum water tank of a cooling table for cooling a molded product in an extruder. Korean Utility Model Laid Open Publication No. 20-1995-0013613, Genuine Cooling Apparatus of Extrusion Molding Machine.

SUMMARY OF THE INVENTION The present invention has been conceived to solve the problems of the prior art described above, and it is an object of the present invention to provide a heat exchanging method through a cooling pipe through which water flows so that a flat plate extruded from a die can be cooled without direct contact with water, It is possible to improve the workability and the productivity by improving the smoothness through the smoothing roller and also to improve the workability and productivity, And a cooling device for a decorative plate extruder.

It is another object of the present invention to provide a cooling device for a decorative plate extruder in which the width of a flat plate extruded from a die can be automatically adjusted, thereby eliminating the need for a post-process.

According to an aspect of the present invention, there is provided a cooling device for a decorative flat plate extruder, comprising: an extrusion unit comprising a die for extruding a sheet-like flat plate; A cooling unit installed to pass through the flat plate so as to cool the flat plate formed from the extrusion unit, and indirectly cooling the flat plate while exchanging heat between the flat plate through which the water flows and the flowing water; A smoothing unit for cooling the flat plate primarily cooled by the cooling unit by the air cooling method and maintaining flatness of the flat plate; Wherein the cooling unit includes: a cooling body having a passage through which a flat plate molded from the extrusion unit can pass, the inside having a flow path through which water can flow; A supply pipe connected to the flow path of the cooling body to supply water; And a discharge pipe connected to the flow path of the cooling body so as to discharge the water supplied through the supply pipe, wherein the smoothing unit comprises: an upper smoothing unit installed so as to be arranged above and below the first cooling plate passing through the cooling unit, It is preferable that the flat plate is made to pass between the upper smoothing roller and the lower smoothing roller while maintaining the smoothness of the flat plate and the plate is secondarily cooled by air cooling.

Wherein the cooling unit comprises: a cooling body which is installed at a central portion of an upper portion of the cooling body in such a manner that the supply pipe is positioned, and the discharge pipe is installed at both sides of the cooling body, It is preferable that the cooling water is supplied to the upper center of the body and is discharged to both sides of the cooling body by the discharge pipe and discharged.

Wherein the cooling unit comprises: a space formed on an upper portion of the cooling body so that an upper surface of the plate passing through the passage of the cooling body can be exposed, indirect cooling the plate by water flowing in the cooling body, It is preferable to allow the flat plate to be cooled by the space portion by the air cooling method.

Wherein the smoothing unit is provided with a gap adjusting unit capable of adjusting the gap by moving the upper smoothing rollers up and down so as to adjust an interval between the upper smoothing rollers and the lower smoothing rollers according to the thickness of the flat plate, Wherein the adjusting unit comprises: a moving plate installed so that the upper smoothing rollers are fixed and moved up and down; A fixed plate provided at an upper portion of the moving plate at a predetermined interval; A guide rod which is fixed to the fixed plate and has an upper portion fixed thereto and is arranged to penetrate the movable plate to guide up and down movement of the movable plate; A rotating shaft which is threadedly coupled to the fixed plate so as to move up and down the moving plate along the guide rod and coupled to rotate on the moving plate; And a handle for rotating the rotary shaft.

The extrusion unit may further include: a width adjusting unit comprising: an adjusting piece mounted on both end sides of the die and rotating on a widthwise plane of the flat plate to be extrusion-molded, and an actuator capable of adjusting the adjusting piece And the width of the flat plate can be adjusted by adjusting the control piece by the actuator.

Preferably, the extrusion unit is provided with a support member which is disposed at one side of the die and supports the actuator and has a support shaft for rotatably mounting the control member.

According to the cooling device for a decorative flat plate extruder of the present invention, the flat plate extruded from the die is first indirectly cooled by a heat exchange method through a cooling pipe through which water flows, and cooled by a second air cooling method through a smoothing roller It is possible to improve the smoothness through the smoothing roller, thereby improving workability and productivity. Further, there is no need to wipe off the water, and the working time can be shortened.

1 is a block diagram of a cooling device for a decorative plate extruder according to the present invention,
2 is a schematic view of a cooling device for a decorative plate extruder according to the present invention,
3 is a view showing an example of a cooling unit provided in a cooling device for a decorative plate extruder according to the present invention,
4 is a view showing an example of a smoothing unit provided in a cooling device for a decorative plate extruder according to the present invention,
5 is a view showing an example of an extrusion unit and a pawl control unit provided in a cooling device for a decorative plate extruder according to the present invention.

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

Prior to the description of the present invention, the following specific structure or functional description is merely illustrative for the purpose of describing an embodiment according to the concept of the present invention, and embodiments according to the concept of the present invention may be embodied in various forms , And should not be construed as limited to the embodiments described herein.

In addition, embodiments according to the concept of the present invention can make various changes and have various forms, so that specific embodiments are illustrated in the drawings and described in detail herein. However, it should be understood that the embodiments according to the concept of the present invention are not intended to limit the present invention to specific modes of operation, but include all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.

FIG. 1 is a block diagram of a cooling device for a decorative plate extruder according to the present invention, FIG. 2 is a schematic view of a cooling device for a decorative plate extruder according to the present invention, FIG. 4 is a view showing an example of a smoothing unit provided in a cooling device for a decorative plate extruder according to the present invention, and FIG. 5 is a view showing an example of a cooling unit provided in a cooling device for a decorative plate extruder according to the present invention. Fig. 2 is a view showing an example of an extrusion unit and a pawl adjustment unit provided in the pawl.

As shown in these drawings, the extrusion unit 100 is provided in the cooling device for the decorative plate extruder according to the present invention.

The extrusion unit 100 is preferably formed of a die 110 capable of extrusion-molding the sheet-like flat plate 12. This die 110 is a conventional extrusion molding apparatus.

As shown in the figure, the cooling unit for a decorative plate extruder according to the present invention is provided with a cooling unit 200.

The cooling unit 200 can cool the flat plate 12 formed from the extrusion unit 100. The cooling unit 200 is installed so that the flat plate 12 is passed therethrough, So that the flat plate 12 passing through and the water to be flowed are exchanged with each other to cool the flat plate 12 indirectly.

The cooling unit 200 may include a cooling body 210, a supply pipe 220, and a discharge pipe 230. The cooling body 210 is provided with a passage 212 through which the flat plate 12 molded from the extrusion unit 100 can pass and a flow passage 214 through which water can flow is formed inside.

The supply pipe 220 is connected to the flow path 214 of the cooling body 210 so as to supply water and the discharge pipe 230 discharges water supplied through the supply pipe 220 (214) of the cooling body (210).

The supply pipe 220 is installed at a central portion of the upper portion of the cooling body 210 and the discharge pipe 230 is installed at both sides of the cooling body 210, The water flowing through the flow path 214 of the cooling body 210 is supplied to the upper center of the cooling body 210 by the supply pipe 220 and is discharged to both sides of the cooling body 210 by the discharge pipe 230 .

The cooling unit 200 is configured such that a space portion 216 is formed on the cooling body 210 so that the upper surface of the flat plate 12 passing through the passage 212 of the cooling body 210 can be exposed. So that the flat plate 12 can be indirectly cooled by the water flowing in the cooling body 210 and the flat plate 12 can be cooled by the space portion 216 by the air cooling method.

As shown in the drawing, the cooling unit for a decorative plate extruder according to the present invention is provided with a smoothing unit 300.

The smoothing unit 300 allows the cooling unit 200 to cool the plate 12 that has been primarily cooled by the air cooling method and maintain the smoothness of the plate 12.

The smoothing unit 300 is provided with upper smoothing rollers 310 and lower smoothing rollers 320 so as to be arranged above and below the first flattened plate 12 passing through the cooling unit 200, The smoothness of the flat plate 12 is maintained while the flat plate 12 passes between the roller 310 and the lower flat roller 320 and the flat plate 12 is secondarily cooled by the air cooling method.

The smoothing unit 300 moves the upper smoothing rollers 310 up and down so that the gap between the upper smoothing rollers 310 and the lower smoothing rollers 320 can be adjusted according to the thickness of the flat plate 12 It is preferable that a gap adjusting unit 330 capable of adjusting the gap is provided.

In this way, the gap adjusting unit 330 is provided with a moving plate for fixing the upper smoothing rollers 310 and moving the upper smoothing rollers 310 up and down. A fixing plate 334 is provided at an upper portion of the moving plate 332, A guide rod 336 is installed to penetrate the moving plate 332 and the moving plate 332 is moved up and down so that the moving plate 332 is guided along the guide rod 336.

The guide rod 336 is installed at both ends of the moving plate 332 and the fixing plate 334 so that the moving plate 332 is moved up and down along the guide rod 336 A rotating shaft 228 having a male screw portion is screwed to the fixing plate 334 and a handle 339 is coupled to the moving plate 332 so that the rotating shaft 228 is rotated in place and the rotating shaft is rotated.

The gap adjusting unit 330 rotates the handle 339 so that the rotating shaft 228 is rotated so that the moving plate 332 is moved up and down while being guided by the guide rod 336, 310 are moved up and down to adjust the gap between the upper smoothing rollers 310 and the lower smoothing rollers 320.

As shown in the drawing, the cooling device for a decorative plate extruder according to the present invention is provided with a width adjusting unit 120.

The width adjusting unit 120 is provided on both sides of the dies 110 and is provided with adjustment pieces 122 mounted on widthwise end surfaces and rotated on the widthwise plane of the flat plate 12 to be extruded, The adjuster 122 is adjusted by the actuator 124 so that the width of the flat plate 12 extruded from the die 110 can be adjusted .

The width adjusting unit 120 is disposed at one side of the die 110 to support the actuator 124 and a support shaft 128 for rotatably mounting the adjusting member 122 A support member 126 is preferably provided.

For example, the support shaft 126 is provided with a support shaft 128, and a hole 122a is formed in the adjustment member 122 so as to be inserted into the support shaft 128, 128 so that the adjustment piece 122 is rotated about the support shaft 128 by the actuator 124 so that the width of the flat plate 12 extruded from the die 110 can be adjusted in real time .

The flat plate 12 extruded from the die 110 of the extrusion unit 100 passes through the cooling unit 200 and flows through the inner flow path 214 of the cooling body 210, Cooled by an indirect method in which heat is exchanged, and smoothness is improved while passing between the upper smoothing roller 310 and the lower smoothing roller 320 of the smoothing unit 300, and secondarily cooled by the air cooling method, A separate water tank for cooling the flat plate 12 is not necessary as in the conventional case.

In this way, there is no need for a water tank for cooling the flat plate, so that the water does not directly touch the flat plate 12, and it is not necessary to wipe off the water, so that the workability and productivity can be improved and the working time can be shortened do.

On the other hand, since the width of the flat plate 12 extruded from the die 110 by the width adjusting unit 120 can be adjusted in real time, there is an advantage that a post-process is not necessary.

Although the present invention has been fully described in connection with the preferred embodiments thereof with reference to the accompanying drawings, it is to be understood that the present invention is not limited thereto. It is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

100 - extrusion unit 110 - die
200 - Cooling unit 210 - Cooling body
220 - supply pipe 230 - discharge pipe
300 - Smoothing unit 310 - Upper smoothing roller
320 - Lower smoothing roller 330 - Spacing unit

Claims

A cooling device for a decorative plate extruder,
An extrusion unit comprising a die for extrusion-molding a sheet-like flat plate;
A cooling unit installed to pass through the flat plate so as to cool the flat plate formed from the extrusion unit, and indirectly cooling the flat plate while exchanging heat between the flat plate through which the water flows and the flowing water; And
A smoothing unit capable of cooling the flat plate cooled by the cooling unit by the air cooling method and maintaining flatness of the flat plate; / RTI >
The cooling unit comprises:
A cooling body having a passage through which a flat plate molded from the extrusion unit can pass, the inside having a flow path through which water can flow;
A supply pipe connected to the flow path of the cooling body to supply water; And
And a discharge pipe connected to the flow path of the cooling body so as to discharge the water supplied through the supply pipe,
The smoothing unit comprises:
The upper flat rollers and the lower flat rollers are arranged so as to be arranged above and below the cooling plate passing through the cooling unit. The flat flat plate passes between the upper flat rollers and the lower flat rollers, And cooling the flat plate by the air cooling to secondarily cool the flat plate extruder.

The method according to claim 1,
The cooling unit comprises:
And the discharge pipe is installed at both sides of the cooling body so that water flowing through the flow path of the cooling body is directed to the upper center of the cooling body by the supply pipe And is discharged to both sides of the cooling body by the discharge pipe and discharged.

The method according to claim 1,
The cooling unit comprises:
A space is formed in an upper portion of the cooling body so that the upper surface of the plate passing through the passage of the cooling body can be exposed so that the plate is indirectly cooled by the water flowing in the cooling body, Wherein the cooling device is a cooling device for cooling the flat plate.

The method according to claim 1,
The smoothing unit comprises:
A gap adjusting unit for adjusting the gap by vertically moving the upper smoothing rollers so that the interval between the upper smoothing rollers and the lower smoothing rollers can be adjusted according to the thickness of the flat plate,
Said spacing adjustment unit comprising:
A moving plate installed above the upper smoothing rollers so as to move up and down;
A fixed plate provided at an upper portion of the moving plate at a predetermined interval;
A guide rod which is fixed to the fixed plate and has an upper portion fixed thereto and is arranged to penetrate the movable plate to guide up and down movement of the movable plate;
A rotating shaft which is threadedly coupled to the fixed plate so as to move up and down the moving plate along the guide rod and coupled to rotate on the moving plate; And
And a handle for rotating the rotary shaft.

The method according to claim 1,
Wherein the extrusion unit comprises:
Further comprising: a width adjusting unit composed of an adjusting element mounted on both end sides of the die at a widthwise end face and rotating on a plane in the width direction of the flat plate to be extruded, and an actuator capable of adjusting the adjusting element,
And the width of the flat plate can be adjusted by adjusting the control piece by the actuator.

6. The method of claim 5,
Wherein the extrusion unit comprises:
And a support member disposed on one side of the die and supporting the actuator and having a support shaft for rotatably supporting the control member.